This article seeks the origin, in the theories of Ibn al-Haytham (Alhazen), Descartes, and Berkeley, of two-stage theories of spatial perception, which hold that visual perception involves both an immediate representation of the proximal stimulus in a two-dimensional ‘‘sensory core’’ and also a subsequent perception of the three dimensional world. The works of Ibn al-Haytham, Descartes, and Berkeley already frame the major theoretical options that guided visual theory into the twentieth century. The field of visual perception was the (...) first area of what we now call psychology to apply mathematics, through geometrical models as used by Euclid, Ptolemy, Ibn al-Haytham, and Descartes (among others). The article shows that Kepler’s discovery of the retinal image, which revolutionized visual anatomy and entailed fundamental changes in visual physiology, did not alter the basic structure of theories of spatial vision. These changes in visual physiology are advanced especially in Descartes' Dioptrics and his L'Homme. Berkeley develops a radically empirist theory vision, according to which visual perception of depth is learned through associative processes that rely on the sense of touch. But Descartes and Berkeley share the assertion that there is a two-dimensional sensory core that is in principle available to consciousness. They also share the observation that we don't usually perceived this core, but find depth and distance to be phenomenally immediate, a point they struggle to accommodate theoretically. If our interpretation is correct, it was not a change in the theory of the psychology of vision that engendered the idea of a sensory core, but rather the introduction of the theory into a new metaphysical context. (shrink)

This is the text of an invited talk exploring the connections between two apparently distinct notions of affect, sensory versus core affect. It is basically a progress report. It is exploratory and tentative. It starts from a mild puzzle about the apparent mismatch between the notion of affect that affective neuroscientists generally deploy and the notion of affect that emotion psychologists deploy. The notion favored by psychologists is the notion of core affect. The phenomenon studied by affective (...) neuroscientists is usually the notion of sensory affect. It's not clear how these two notions are related to each other. I'll present the main outlines of both notions, make some critical observations, and raise a few questions at the end. (shrink)

The mind-body problem is one of the last great intellectual mysteries facing humankind. The hard core of the mind-body problem is the problem of qualitative character: the what-it's-likeness of conscious states. What is the nature of qualitative character? Can it be explained in terms of the intentional content of experience? What is the nature of the so-called secondary qualities---colors, sounds, smells, and so on? Finally, is Physicalism about qualitative character correct? In other words, are a person's qualitative mental properties (...) determined, as a matter of 'strict' or 'metaphysical' necessity, by her physical and functional properties? ;My dissertation is a collection of essays that address these questions. They are self-standing but interrelated. Collectively, they develop a case for skepticism concerning Physicalism about qualitative mental properties. It is common to argue against Physicalism on a priori grounds: that it is shown to be false by the conceivability of Zombies, that it is incompatible with the 'explanatory gap', that it falls victim to Frank Jackson's Mary argument, and so on. The argument I develop does not rely on the usual a priori considerations. The structure of the argument is simple. In the first essay I argue that in the case of qualitative mental properties the only form of Physicalism which we have reason to accept is what I call 'Identity Physicalism': roughly, the view that qualitative mental properties are identical with physical or functional properties. If it can be shown to be false, we have no reason to accept the Physicalist's modally very strong claim that there is a metaphysically necessary connection between a person's qualitative mental properties, on the one hand, and her physical-functional properties, on the other. In the remaining essays, I use empirical considerations to argue that Identity Physicalism is false in the case of qualitative mental properties. The result is a skeptical position with regard to Physicalism. ;But the dissertation is not entirely negative. Along the way to arguing for this negative conclusion, I develop a package of positive views which are largely independent of it. (shrink)

Geometrical intuitions spontaneously drive visuo-spatial reasoning in human adults, children and animals. Is their emergence intrinsically linked to visual experience, or does it reflect a core property of cognition shared across sensory modalities? To address this question, we tested the sensitivity of blind-from-birth adults to geometrical-invariants using a haptic deviant-figure detection task. Blind participants spontaneously used many geometric concepts such as parallelism, right angles and geometrical shapes to detect intruders in haptic displays, but experienced difficulties with symmetry and (...) complex spatial transformations. Across items, their performance was highly correlated with that of sighted adults performing the same task in touch (blindfolded) and in vision, as well as with the performances of uneducated preschoolers and Amazonian adults. Our results support the existence of an amodal core-system of geometry that arises independently of visual experience. However, performance at selecting geometric intruders was generally higher in the visual compared to the haptic modality, suggesting that sensory-specific spatial experience may play a role in refining the properties of this core-system of geometry. (shrink)

The book illustrates how the human ability to adapt to the environment and interact with it can explain our linguistic representation of the world as constrained by our bodies and sensory perception. The different chapters discuss philosophical, scientific, and linguistic perspectives on embodiment and body perception, highlighting the core mechanisms humans employ to acquire knowledge of reality. These processes are based on sensory experience and interaction through communication.

According to grounded cognition, words whose semantics contain sensory-motor features activate sensory-motor simulations, which, in turn, interact with spatial responses to produce grounded congruency effects. Growing evidence shows these congruency effects do not always occur, suggesting instead that the grounded features in a word's meaning do not become active automatically across contexts. Researchers sometimes use this as evidence that concepts are not grounded, further concluding that grounded information is peripheral to the amodal cores of concepts. We first review (...) broad evidence that words do not have conceptual cores, and that even the most salient features in a word's meaning are not activated automatically. Then, in three experiments, we provide further evidence that grounded congruency effects rely dynamically on context, with the central grounded features in a concept becoming active only when the current context makes them salient. Even when grounded features are central to a word's meaning, their activation depends on task conditions. (shrink)

The nature of “the self” has been one of the central problems in philosophy and more recently in neuroscience. This raises various questions: Can we attribute a self to animals? Do animals and humans share certain aspects of their core selves, yielding a trans-species concept of self? What are the neural processes that underlie a possible trans-species concept of self? What are the developmental aspects and do they result in various levels of self-representation? Drawing on recent literature from both (...) human and animal research, we suggest a trans-species concept of self that is based upon what has been called a “core-self” which can be described by self-related processing as a specific mode of interaction between organism and environment. When we refer to specific neural networks, we will here refer to the underlying system as the “core-SELF.” The core-SELF provides primordial neural coordinates that represent organisms as living creatures—at the lowest level this elaborates interoceptive states along with raw emotional feelings while higher medial cortical levels facilitate affective-cognitive integration . Developmentally, SRP allows stimuli from the environment to be related and linked to organismic needs, signaled and processed within core-self structures within subcorical-cortical midline structures that provide the foundation for epigenetic emergence of ecologically framed, higher idiographic forms of selfhood across different individuals within a species. These functions ultimately operate as a coordinated network. We postulate that core SRP operates automatically, is deeply affective, and is developmentally and epigenetically connected to sensory-motor and higher cognitive abilities. This core-self is mediated by SCMS, embedded in visceral and instinctual representations of the body that are well integrated with basic attentional, emotional and motivational functions that are apparently shared between humans, non-human mammals, and perhaps in a proto-SELF form, other vertebrates. Such a trans-species concept of organismic coherence is thoroughly biological and affective at the lowest levels of a complex neural network, and culturally and ecologically molded at higher levels of neural processing. It allows organisms to selectively adapt to and integrate with physical and social environments. Such a psychobiologically universal, but environmentally diversified, concept may promote novel trans-species studies of the core-self across mammalian species. (shrink)

In this review, we summarize studies investigating comprehension of three core grammatical structures (Subject-Verb-Object word order, grammatical aspect and wh-questions) in diverse samples of Mandarin-acquiring preschoolers with ASD, all utilizing the Intermodal Preferential Looking (IPL) paradigm. Results showed that children with ASD, though they were delayed in chronological age and expressive language (including significantly lower vocabulary production scores), acquired various grammatical constructions similarly to their typically developing peers. Moreover, Mandarin-acquiring preschoolers with ASD demonstrated similar acquisition patterns of these three (...) core grammatical structures, as has been reported in previous IPL studies among English-acquiring children with ASD (Naigles & Fein, 2017). Thus, the results testify that universal underlying mechanisms are playing vital roles in grammatical acquisition of children with ASD across languages (e.g., the setting of word order parameters, the preservation of functional morphemes, the universal operation of WH-Movement), despite their pervasive social cognition impairments. These findings suggest that core grammatical knowledge may be preserved in children with ASD, even in the face of radical differences in language environment and social/communicative deficits, supporting the contribution of the language faculty in autistic language acquisition. The results shed light on the sharp contrast between linguistic competence (governed by the internal computational system of the language faculty) vs. linguistic performance (affected by loci of impairment in the sensory-motor and the conceptual-intentional interfaces) in ASD. Furthermore, the results highlight the dissociation between the lexical vs. the grammatical modules in ASD, supporting a modular view of the diverse language domains in the language faculty. (shrink)

Autistic children with sensory processing differences successfully navigate and engage in meaningful family daily occupations within home and community environments through the support of their family. To date however, much of the research on autistic children with sensory processing differences, has primarily been deficit focused, while much of the caregiver research has focused on issues of distress, burden, effort, and emotional trauma in coping with their child's diagnosis. This study aimed to conduct a qualitative evidence synthesis, using a (...) meta-ethnographic approach to explore the gap identified in understanding successful occupational experiences of family participation and daily family routines when supporting an autistic child with sensory processing differences and to offer an alternative strengths-based perspective. Inclusion criteria were studies which were peer-reviewed qualitative design, published from 2000 to 2021, and that concerned parents/caregivers' perspectives of family occupations of children diagnosed with autism spectrum disorder. Studies were electronically searched in eight databases from October to December 2021 and 23 studies were identified which met the inclusion criteria. Noblit and Hare's seven step approach for conducting analysis in meta-ethnography was used, and three themes identified: sensory processing differences in daily life, what is hard about hard, and orchestrating family life. Results identified the centrality of sensory experiences in understanding family life. Living with unpredictability while orchestrating certainty through routines was core to successful participation. This review provides insights into how parents negotiate the complexities of constructing family life when living with an autistic child. The results can inform the design of future interventions that specifically address the relationship between meaningful participation in family occupations and daily routines and sensory processing in autistic children.Systematic review registrationhttps://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD42022298938, identifier: CRD42022298938. (shrink)

I review recent work from armchair and cross-cultural epistemology on whether humans possess a knowledge concept as part of a universal “folk epistemology.” The work from armchair epistemology fails because it mischaracterizes ordinary knowledge judgments. The work from cross-cultural epistemology provides some defeasible evidence for a universal folk epistemology. I argue that recent findings from comparative psychology establish that humans possess a species-typical knowledge concept. More specifically, recent work shows that knowledge attributions are a central part of primate social cognition, (...) used to predict others’ behavior and guide decision-making. The core primate knowledge concept is that of truth detection (across different sensory modalities) and retention (through memory) and may also include rudimentary forms of indirect truth discovery through inference. In virtue of their evolutionary heritage, humans inherited the primate social-cognitive system and thus share this core knowledge concept. (shrink)

Current diagnostic criteria for schizophrenia place emphasis on delusions and hallucinations, whereas the classical descriptions of schizophrenia by Kraepelin and Bleuler emphasized disorganization and impoverishment of mental activity. Despite the availability of antipsychotic medication for treating delusions and hallucinations, many patients continue to experience persisting disability. Improving treatment requires a better understanding of the processes leading to persisting disability. We recently introduced the term classical schizophrenia to describe cases with disorganized and impoverished mental activity, cognitive impairment and predisposition to persisting (...) disability. Recent evidence reveals that a polygenic score indicating risk for schizophrenia predicts severity of the features of classical schizophrenia: disorganization, and to a lesser extent, impoverishment of mental activity and cognitive impairment. Current understanding of brain function attributes a cardinal role to predictive coding: the process of generating models of the world that are successively updated in light of confirmation or contradiction by subsequent sensory information. It has been proposed that abnormalities of these predictive processes account for delusions and hallucinations. Here we examine the evidence provided by electrophysiology and fMRI indicating that imprecise predictive coding is the core pathological process in classical schizophrenia, accounting for disorganization, psychomotor poverty and cognitive impairment. Functional imaging reveals aberrant brain activity at network hubs engaged during encoding of predictions. We discuss the possibility that frequent prediction errors might promote excess release of the neurotransmitter, dopamine, thereby accounting for the occurrence of episodes of florid psychotic symptoms including delusions and hallucinations in classical schizophrenia. While the predictive coding hypotheses partially accounts for the time-course of classical schizophrenia, the overall body of evidence indicates that environmental factors also contribute. We discuss the evidence that chronic inflammation is a mechanism that might link diverse genetic and environmental etiological factors, and contribute to the proposed imprecision of predictive coding. (shrink)

The target article described the ubiquitous and often undefined idea of as the basis for sensory coding in taste, and its attendant problems. The commentaries cover the full range of reaction to this argument, from full support, to qualification of the level of analysis to which apply and the nature of empirical support, to full denial of either the characterization of the literature or that such characterization reveals any problem. Many commentators, and I, go on to propose other types (...) and sources for taste analysis, which I relate to the. (shrink)

Kant's critical philosophy promises to overturn both Empiricism and Rationalism by arguing for the necessity of a passive faculty, sensibility, and an active faculty, understanding, in order for cognition to obtain. Kant argues in favor of sense impression found in standard empirical philosophies while advocating conceptual necessities like those found in rational philosophies. It is only in the synthesis of these two elements that cognition and knowledge claims are possible. However, by affirming such a dualism, Kant has created yet another (...) problem familiar to the history of philosophy, one of faculty interaction. By affirming two separate and exclusive capacities necessary for cognition, Kant has bridged the gap between the two philosophical traditions, but created a gap that must be overcome in order to affirm his positive programmatic. Kant himself realizes the difficulty his new philosophy faces when he claims the two sources of knowledge must have a "common, but unknown root." To complete Kant's program one must ask: "What bridges the gap between sensible intuition and conceptual understanding?" In my dissertation, I turn to Kant's philosophy and find the answer to this question in the productive imagination. In order to evaluate the viability of this answer, I problematize the imagination as it has been found in the history of Western philosophy. By tracing the historical use of the imagination in archetypal figures from both empiricist and rationalist traditions, one finds a development of imagination that culminates in the fundamental formulation found in Kant's Critique of Pure Reason. In his critical philosophy, Kant synthesizes the imagination and the use of imagination found in both traditions, thus demonstrating its role in both sensation and understanding. By employing the imagination at both sensorial and conceptual levels, Kant has found, I argue, the liaison that overcomes the dualism established by his requirements for knowledge, as well as the common root for both. (shrink)

Representation and content in some (actual) theories of perception -- Representation in perception and cognition : task analysis, psychological functions, and rule instantiation -- Perception as unconscious inference -- Representation and constraints : the inverse problem and the structure of visual space -- On perceptual constancy -- Getting objects for free (or not) : the philosophy and psychology of object perception -- Color perception and neural encoding : does metameric matching entail a loss of information? -- Objectivity and subjectivity revisited (...) : color as a psychobiological property -- Sense data and the mind body problem -- The reality of qualia -- The sensory core and the medieval foundations of early modern perceptual theory -- Postscript (2008) on Ibn al-Haytham's (Alhacen's) theory of vision -- Attention in early scientific psychology -- Psychology, philosophy, and cognitive science : reflections on the history and philosophy of experimental psychology -- What can the mind tell us about the brain? : psychology, neurophysiology, and constraint -- Introspective evidence in psychology. (shrink)

In this work I reject the contention that there is a perceptual stage which is devoid of contributions from the agent's cognitive framework. This contention is expressed in two different noncognitive views of perception. The traditional sensory core view which has prevailed since the seventeenth century; it claims that there is a stage of pure sensory core which precedes the interpretive percepts . The recent ecological approach whose main representative is J. J. Gibson; it claims that (...) not only a certain perceptual stage, but the whole perceptual process, is devoid of cognitive contributions. Before I deal with these views, I discuss the basic features of cognition in general. ;Cognition is concerned with the establishment of relations and order; it is a purposive placing of a cognized object into a meaningful order. Cognition begins with modifying a given order for the purpose of making it fit into a given meaningful framework. Throughout the work I show that, contrary to the aforementioned noncognitive views, perception fulfills this depiction of cognition. ;In the discussion of the sensory core view, I illustrate its main assumptions in various philosophical writings, and then indicate main reasons for its appearance in the seventeenth century. These reasons stem from the intermediate role sensation was supposed to have in the mental-physical gap. Sensations were considered to be primitive mental entities with physical causes; their physical origin prevents them from containing complex mental features such as the cognitive ones, and, thus, they are regarded as pure. This stage of pure sensation was postulated primarily out of theoretical considerations. Those did not coincide with the empirical and phenomenological description of that stage; hence, the empirical characterization and the phenomenological status of that stage were constantly modified. The various suggestions for describing that stage are examined and criticized from both empirical and theoretical respects. The empirical evidence presented indicates that there is no qualitative difference between perceiving what is regarded as pure sensations and what is regarded as inferential perceptions. The theoretical criticism points out that the assumption regarding pure sensation is not necessary for an adequate explanation of perception; and, since it has no empirical grounds, it is superfluous. ;After rejecting the sensory core view, I examine the ecological approach. This view rejects the traditional sensation-perception distinction and contends that we do not have to assume the existence of cognitive activities that interpret meaningless sensations into meaningful perceptions, since the perceiver directly encounters meaningful features. I claim that this solution is similar to Kant's approach, and, therefore, it has to pay a price which is similar to that which Kant pays, viz. the relational nature of the perceptual environment. The neglect of this feature results in unsolvable difficulties in central notions of the ecological approach. ;I conclude the work by suggesting a crude outline for approaching perception; in many respects it is close to Aristotle's view. I contend that causal explanations of the physiological processes cannot wholly explain perceiving; these processes are necessary supportive bases for perceiving and not the causes which precede and produce it. Accordingly, we should not assume the existence of separate percepts in the agent's head. The cognitive system is an integral part of the perceptual system; hence, perception may be conceived of as direct understanding. (shrink)

In sensory neuroscience, the neural and perceptual levels of investigation are commonly related through a reductive research strategy based in psycho-neural isomorphisms. Davida Teller’s “linking propositions” are a particularly vivid illustration of this epistemology in the context of vision science. For Teller, linking propositions guide the core epistemological practices of vision science by expressing the criteria for acceptable explanations of perceptual phenomena by neural processes and by articulating heuristics for discovering neural properties on grounds of perceptual ones, and (...) vice versa. Furthermore, linking propositions create a uniform discourse in which ontological identity statements can be formulated on the basis of structural terms applicable to both the neurophysiological and perceptual domains.I argue that the epistemic practices of current color vision science are better understood through Machamer-style mechanisms than isomorphism-based linking propositions. For Machamer, activity types of mechanisms are central for both explanation and the discovery of entities and their properties. The activity type of color cancellation is fundamental to the opponent process paradigm of color vision precisely in this manner. The descriptive inadequacy of linking propositions for clarifying vision scientific research is particularly damaging because activity types have a unifying role for the structural facts of color perception. As a form of local reductionism, Teller’s proffered epistemology aims to create a uniform domain for neuroscience and perceptual psychology but on the basis of a non-unified, disparate set of structural identity statements. By bringing attention to the unifying role of activity types, Machamer mechanisms allow also for critical epistemological explorations of ontological reductions on grounds of the fit between activity types of higher-level and lower-level sciences. They offer a Machamer-ontological-critical or MOCing framework, for short, against local reductionism. (shrink)

A central goal of philosophy of perception is to uncover the nature of sensory capacities. Ideally, we would like an account that specifies what conditions need to be met in order for an organism to count as having the capacity to sense or perceive its environment. And on the assumption that sensory states are the kinds of things that can be accurate or inaccurate, a further goal of philosophy of perception is to identify the accuracy conditions for (...) class='Hi'>sensory states. In this paper I recommend a novel approach to these core issues, one that draws heavily on game-theoretic treatments of signaling in nature. A benefit of the approach is that it helps us to understand why biologists attribute sensory powers to such a diverse range of organisms, including plants, fungi, and algae. (shrink)

The term “perceptual constancy” was used by the Gestalt theorists in the early part of the twentieth century (e.g., Koffka 1935, 34, 90) to refer to the tendency of perception to remain invariant over changes of viewing distance, viewing angle, and conditions of illumination. This tendency toward constancy is remarkable: every change in the viewing distance, position, and illumination is necessarily accompanied by a change in the local proximal (retinal) stimulation, and yet perception remains relatively stable. The tendency toward perceptual (...) constancy encouraged the Gestalt theorists to look beyond local proximal stimulation in grounding their theories of perception. In the ensuing decades, much has been learned about the constancies. Evidence for this assertion may be found in the contributions to the current volume as well as in earlier volumes (e.g., Epstein 1977; Walsh and Kulikowsky 1998). These advances notwithstanding, significant questions remain open. Our aim here is to note some advances and specify some open questions. (shrink)

Western science claims to provide unique, objective information about the world. This is supported by the observation that peoples across cultures will agree upon a common description of the physical world. Further, the use of scientific instruments and mathematics is claimed to enable the objectification of science. In this work, carried out by reviewing the scientific literature, the above claims are disputed systematically by evaluating the definition of physical reality and the scientific method, showing that empiricism relies ultimately upon the (...) human senses for the evaluation of scientific theories and that measuring instruments cannot replace the human sensory system. Nativist and constructivist theories of human sensory development are reviewed, and it is shown that nativist claims of core conceptual knowledge cannot be supported by the findings in the literature, which shows that perception does not simply arise from a process of maturation. Instead, sensory function requires a long process of learning through interactions with the environment. To more rigorously define physical reality and systematically evaluate the stability of perception, and thus the basis of empiricism, the development of the method of dimension analysis is reviewed. It is shown that this methodology, relied upon for the mathematical analysis of physical quantities, is itself based upon empiricism, and that all of physical reality can be described in terms of the three fundamental dimensions of mass, length and time. Hereafter the sensory modalities that inform us about these three dimensions are systematically evaluated. The following careful analysis of neuronal plasticity in these modalities shows that all the relevant senses acquire from the environment the capacity to apprehend physical reality. It is concluded that physical reality is acquired rather than given innately, and leads to the position that science cannot provide unique results. Rather, those it can provide are sufficient for a particular environmental setting. (shrink)

This article aims to explore contemplative practitioners’ direct lived experiences of enlightenment and develop a multi-item scale measuring these experiences. A mixed-method approach was adopted. The first study is a phenomenological study that interviewed 24 participants with enlightenment experiences and the second study is a scale-development study that recruited 1130 participants for scale validation. Two major clusters of the enlightenment experiences including sensory feelings and nondual realizations emerged from the phenomenological study and the four main themes of the realizations (...) were formed: intrapersonal insights, inspiration internalization, interpersonal compassion, and interconnectedness. After exploratory factor analysis and confirmatory factor analysis, a three-factor structure of the Spiritual Enlightenment Experience Scale, including nonduality, sensory clarity, and sensory disappearance were revealed. The findings of the research depicted a fuller picture of spiritual enlightenment experiences which may contribute to the current knowledge of religiosity and spirituality, as well as transpersonal psychology. The results suggest that the core components of spiritual enlightenment experiences include sensory clarity and disappearance experiences and realizations of nonduality. (shrink)

Uncertainty is a core issue and – as I would like to argue in this article – also a generative core quality of anthropological sensory practices. Research in particular and epistemologically meaningful endeavours in general are probably not even possible if moments and aspects of uncertainty are excluded or even avoided. Therefore, this article will start in the section ‘The sensory corpus’ with one example of auditory and sensory uncertainty by US-sound artist Maryanne Amacher. This (...) example, the piece ‘Dense Boogie I’, operates directly in the body, in the physical ear of the listeners, and can prove how the listening subject’s idiosyncratic sensibility can be a crucial instrument to proceed in researching and understanding. (shrink)

Biological brains are increasingly cast as ‘prediction machines’: evolved organs whose core operating principle is to learn about the world by trying to predict their own patterns of sensory stimulation. This, some argue, should lead us to embrace a brain-bound ‘neurocentric’ vision of the mind. The mind, such views suggest, consists entirely in the skull-bound activity of the predictive brain. In this paper I reject the inference from predictive brains to skull-bound minds. Predictive brains, I hope to show, (...) can be apt participants in larger cognitive circuits. The path is thus cleared for a new synthesis in which predictive brains act as entry-points for ‘extended minds’, and embodiment and action contribute constitutively to knowing contact with the world. (shrink)

If successful scientific inquiry is to be possible, there must be a world that is independent of how we believe it to be, and in which there are kinds and laws; and we must have the sensory apparatus to perceive particular things and events, and the capacity to represent them, to form generalized explanatory conjectures, and check how these conjectures stand up to further experience. Whether these preconditions are met is not a question the sciences can answer; it is (...) specifically philosophical. This is why the myriad forms of scientistic philosophy in vogue today (neurophilosophy, experimental philosophy, naturalized metaphysics, evangelical-atheist reductionism, etc), are all hollow at the core. Does this mean we must return to the old, a priori analytic model? No! What is needed instead is scientific philosophy in the sense Peirce articulated more than a century ago: philosophy motivated by a genuine desire to discover the truth, and relying not solely on reason but also on experience—only not the special, recherché experience required by the sciences, but close attention to aspects of everyday experience so familiar we hardly notice them. (shrink)

Recent work in cognitive and computational neuroscience depicts human brains as devices that minimize prediction error signals: signals that encode the difference between actual and expected sensory stimulations. This raises a series of puzzles whose common theme concerns a potential misfit between this bedrock informationtheoretic vision and familiar facts about the attractions of the unexpected. We humans often seem to actively seek out surprising events, deliberately harvesting novel and exciting streams of sensory stimulation. Conversely, we often experience some (...) wellexpected sensations as unpleasant and to-be-avoided. In this paper, I explore several core and variant forms of this puzzle, using them to display multiple interacting elements that together deliver a satisfying solution. That solution requires us to go beyond the discussion of simple information-theoretic imperatives and to recognize the essential role of species-specific prestructuring, epistemic foraging, and cultural practices in shaping the restless, curious, novelty-seeking human mind. (shrink)

Local theories of consciousness state that one is conscious of a feature if it is adequately represented and processed in sensory brain areas, given some background conditions. We challenge the core prediction of local theories based on long-lasting postdictive effects demonstrating that features can be represented for hundreds of milliseconds in perceptual areas without being consciously perceived. Unlike previous empirical data aimed against local theories, localists cannot explain these effects away by conjecturing that subjects are phenomenally conscious of (...) features that they cannot report. We also discuss alternative explanations that localists could offer. (shrink)

This essay aims to expose the metaphysical underpinnings of enactivism. While enactivism relies heavily on rejecting the traditional mind-body problem by excluding the familiar thought experiments that favor phenomenal dualism, the crucial point that is overlooked is instead the brain-body problem, specifically the crucial interaction between the brain and the bodily limbs in their embodied activities of perception and cognition. If enactivism is correct, differences in sensory experience necessarily entail differences in embodied activity—this is the metaphysical core of (...) enactivism, which we think is entirely wrong. We will argue that a physical or biological body ("Körper") is configured or shaped into a perceptually living body ("Leib") by brain patterns and not by embodied activity or by the so-called sensorimotor contingencies. Undoubtedly, embodied actions influence sensory perception. However, since variations in embodied actions do not necessarily lead to variations in sensory experience, they are not metaphysically constitutive of these experiences (supervenience claim). (shrink)

Vocabulary learning in a second language is enhanced if learners enrich the learning experience with self-performed iconic gestures. This learning strategy is called enactment. Here we explore how enacted words are functionally represented in the brain and which brain regions contribute to enhance retention. After an enactment training lasting 4 days, participants performed a word recognition task in the functional Magnetic Resonance Imaging (fMRI) scanner. Data analysis suggests the participation of different and partially intertwined networks that are engaged in higher (...) cognitive processes, i.e., enhanced attention and word recognition. Also, an experience-related network seems to map word representation. Besides core language regions, this latter network includes sensory and motor cortices, the basal ganglia, and the cerebellum. On the basis of its complexity and the involvement of the motor system, this sensorimotor network might explain superior retention for enactment. (shrink)

According to the popular Grounded Cognition Model (GCM), the sensory and motor features of concepts, including word meanings, are stored directly within neural systems for perception and action. More precisely, the core claim is that these concrete conceptual features reuse some of the same modality-specific representations that serve to categorize experiences involving the relevant kinds of objects and events. Research in semantic typology, however, has shown that word meanings vary significantly across the roughly 6500 languages in the world. (...) I argue that this crosslinguistic semantic diversity has significant yet previously unrecognized theoretical consequences for the GCM. In particular, to accommodate the typological data, the GCM must assume that the concrete features of word meanings are not merely stored within sensory/motor brain systems, but are represented there in ways that are, to a nontrivial degree, language-specific. Moreover, it must assume that these conceptual representations are also activated during the nonlinguistic processing of the relevant kinds of objects and events (e.g., during visual perception and action planning); otherwise, they would not really be grounded, which is to say, embedded inside sensory/motor systems. Crucially, however, such activations would constitute what is traditionally called linguistic relativity—that is, the influence of language-specific semantic structures on other forms of cognition. The overarching aim of this paper is to elaborate this argument more fully and explore its repercussions. To that end, I discuss in greater detail the key aspects of the GCM, the evidence for crosslinguistic semantic diversity, pertinent work on linguistic relativity, the central claim that the GCM entails linguistic relativity, some initial supporting results, and some important limitations and future directions. (shrink)

David Lewis (1974, 1994/1999) proposed to reduce the facts about mental representation to facts about sensory evidence, dispositions to act, and rationality. Recently, Robert Williams (2020) and Adam Pautz (2021) have taken up and developed Lewis’s project in sophisticated and novel ways. In this paper, we aim to present, clarify, and ultimately object to the core thesis that they all build their own views around. The different sophisticated developments and defenses notwithstanding, we think the core thesis is (...) vulnerable. We pose a dilemma by considering the two sides of a current epistemological controversy over the relation between evidence and rational belief: permissivism vs. uniqueness. As we argue, the prospects for the Lewisian project look dim when either supposition is clearly made. (shrink)

Chapter 1 First Person Access to Mental States. Mind Science and Subjective Qualities -/- Abstract. The philosophy of mind as we know it today starts with Ryle. What defines and at the same time differentiates it from the previous tradition of study on mind is the persuasion that any rigorous approach to mental phenomena must conform to the criteria of scientificity applied by the natural sciences, i.e. its investigations and results must be intersubjectively and publicly controllable. In Ryle’s view, philosophy (...) of mind needs to adopt an antimentalist stance to achieve this aim. Antimentalism not only definitively rejects the idea that mind is a substance separated from the body, it also denies that mental phenomena radically differ from physical phenomena by virtue of several unique features. Most problematically, mental phenomena have a conscious character (mental states are related to specific qualitative feelings) and are accessible only to the first-person (only the subject knows directly what s/he is experiencing inside his/her mind). Ryle takes a strong stance on antimentalism going so far as to maintain that an approach to mind which aims to meet the criteria of scientificity set by the natural sciences must avoid any reference to internal, unobservable mental states. In his view (which is considered a specifically philosophical version of psychological behaviorism and also addresses questions put forward in psychological research), mental states can be redescribed in terms of behavioral dispositions. In this chapter, we address the historical roots of the antimentalist view and analyze its relation to the later tradition of research on mind. We show that, compared to the antimentalist stance, functionalism and cognitivism take a step back when they maintain that direct reference to mental states is necessary since mental states cause and therefore explain human behavior. This step backwards is often interpreted as a return to mentalism. However, this is only partially true. Indeed, we suggest that these later traditions retain one important element of Ryle’s antimentalism, i.e. the idea that mental states must be uniquely identified using external and publicly observable criteria, while excluding any reference to introspection and those qualitative dimensions of a mental state, which are accessible only to the first-person. According to the perspective we put forward, this epistemological stance has continued to influence contemporary research on mind and current philosophical and psychological theories which both tend to exclude the subjective qualities of human experience from their accounts of how the mind works. The issue we raise here is whether this is legitimate or whether subjective qualities do play a role with respect to the way our mind works. The conclusion of this chapter anticipates the argument the book makes in in favor of this latter position, starting from a particular angle, i.e. the problem of how we categorize concepts related to our internal states. -/- Chapter 2 The Misleading Aspects of the Mind/Computer Analogy. The Grounding Problem and the Thorny Issue of Propriosensitive Information -/- Abstract. After the crisis of behaviorism, cognitivism and functionalism became the predominant models in the field of psychology and of philosophy, respectively. Their success is mainly due to the new key they use for interpreting mental processes: the mind/computer analogy. On the basis of this analogy, mental operations are seen as cognitive processes based on computations, i.e. on manipulations of abstract symbols which are in turn understood as informational unities (representations). This chapter identifies two main problems with this model. The first is how these symbols can relate to and communicate with perception and thus allow us to identify and classify what we perceive through the senses. Here we limit ourselves to presenting this issue in relation to the classical symbol grounding problem originally put forward by Harnad on the basis of Searle’s Chinese room argument. An attempt to address the problem raised here will be made in chap. 3. The second point we discuss in relation to the mind/computer analogy concerns the idea of information it fosters. Indeed, following this analogy, information is something available in the external world which can be captured by the senses and transmitted to the central system without being influenced or modified by the procedures of transmission. This perspective does not take into account that – unlike computers – in living beings information is acquired by means of the body. As Ulric Neisser has already pointed out, the body is itself an informational source that provides us with additional sensory experience that influences (modifies or complements) the information extracted from the external world by the senses. To develop this line of analysis and to determine exactly what information is provided by the body and how this might influence cognition, we examine Sherrington’s and Gibson’s positions. Moving on from their views, we qualify bodily information in terms of ‘proprioception’. We use ‘proprioception’ in a broad sense to describe any kind of experience we have of our internal states (including postural information as well as sensations related to the general state of the body and its parts). Following Damasio’s and Craig’s studies, we further elaborate this position, arguing that living beings are equipped with an internal propriosensitive monitoring system which maps all the changes that constantly occur in our body and that give us perceptual (‘proprioceptive’ or propriosensitive) information about what happens inside us. Moreover, relying on Goldie’s and Ratcliffe’s view, we show that emotional information can also be considered as a form of ‘proprioception’ which contributes to determining everything we perceive. This analysis leads us to the second main thesis of this book: ‘proprioception’ is a form of internal perception and it is an essential component of the sensory information we can access and use for all cognitive purposes. -/- Chapter 3 Semantic Competence from the Inside: Conceptual Architecture and Composition -/- Abstract. Concepts are essential constituents of thought: they are the instruments we use to categorize our experience, i.e. to classify things and group them together in homogeneous sets. Here we define concepts as the internal mental information (representations) that allows us, among other things, to master words in natural language. By analyzing the way in which individuals master word meanings we explore a number of hypotheses regarding the nature of concepts. Following Diego Marconi’s research, we differentiate between two kind of abilities that underpin lexical competence – so-called ‘referential’ and ‘inferential competence’ – and we suggest that, in order to support these abilities, concepts must also include two corresponding kinds of information, i.e. inferential and referential information. We point out that the most widely used and acknowledged theories of concepts do not make this distinction, instead broadly characterizing the information used for categorization in terms of propositionally described feature lists. However, we show that while feature lists can explain inferential competence, they do not account for referential competence. To address the issue of referential competence we examine Ray Jackendoff’s hypothesis that to account for the possibility of linking perceptual and conceptual information we need to assume the existence of a (visual) representation that encodes the geometric and topological properties of objects and bridges the gap between the percept and the concept. Furthermore, we analyze the extension of this work by Jesse Prinz who introduced the notion of a proxytype, a perceptual representation of a class of objects that incorporates structural and parametric information related to their appearance. However, as we point out, proxytypes can only explain the relationship between perception and concepts with respect to instances that can be perceived through the senses and that belong to the same class by virtue of their physical similarity. We suggest that this notion be extended to include larger conceptual classes. To accomplish this, we further develop Mark Johnson, George Lakoff and Jean Mandler’s idea of a schematic image and argue that conceptual representations include a perceptual schema. Perceptual schemata are non-linguistic, structured experiential gestalts (patterns or maps) that make use of information taken from all sensory modalities, including body perception. They accomplish a quasi-conceptual function: they allow us to recognize and to classify different instances. In this work, we hypothesize that perceptual schemata are an essential component of concepts, but not identical to them. Instead, we suggest that concepts include both perceptual and propositional information with perceptual schemata providing the ‘perceptual core concept’ that grounds related propositional information. -/- Chapter 4 In the Beginning There Were Categories. The Bodily Origin of Prelinguistic Categorical Organization: The Example of Folkbiological Taxonomies -/- Abstract. Studies of categorization in psychology and the cognitive sciences have made use of the notions of ‘category’ and ‘concept’ without precisely defining what is meant by either; in fact, often these terms have been used as synonyms, making it difficult to address specific issues related to conceptual development. This chapter begins by discussing the definitions of, as well as the distinctions between, ‘categories’ and ‘concepts’ in the classical philosophical tradition (Aristotle, Kant and Husserl). We introduce our view of categories with reference to Husserl. Categorization is defined as the way in which our experience is originally (pre-linguistically) organized in a passive and fully unconscious manner on the basis of universal structuring principles. Conceptualization is explained as a later process in which the earlier categorical macro-classes are further subdivided into more specific and detailed sets; this later process also relies on linguistic learning and exposure to culture. On the basis of Ray Jackendoff, Jean Mandler, George Lakoff and Mark Johnson’s work, we hypothesize that categorization is a two-step process that begins with the formation of homogeneous sets of entities partitioned into regions that describe the ontological boundaries of the objects that humans perceive (categories) and continues at a later stage with the development of more specific classifications (concepts). In this chapter, we mainly address three related issues: Why should we assume that there is categorical organization which precedes the development of a conceptual system? How do categories and concepts relate to each other? Shall we hypothesize that categories are innate or that they are formed before concepts on the basis of information and organizational structure available at a very early developmental stage? We show that categorical partitions are necessary for categorization and, following Mandler, that the general categories we form at an early age do not match our adult superordinate concepts. As for the third issue, we argue that there might be no need to assume that categories are innately present in the human mind, since their formation can be explained – at least in certain cases – by basic mechanisms that work on body (propriosensitive) information. This hypothesis will not be discussed in general, but in relation to a particularly relevant example of categorical partition, i.e. the folk-biological dichotomy between ANIMATE/INANIMATE. This is compared with other dichotomies that derive from it, but are not directly categorical such as LIVING/NON-LIVING and BIOLOGICAL/NON-BIOLOGICAL. -/- Chapter 5 Internal States: From Headache to Anger. Conceptualization and Semantic Mastery -/- Abstract. Here we ask if we can also apply the distinction between referential and inferential competence we introduced in Chapter 3 to words that do not refer to things that are perceived using the external senses, especially to words/concepts that denote bodily experiences (such as pain, thirst, hunger, etc.) or emotions. We introduce and discuss the hypothesis that – even though such words/concepts do not refer to intersubjectively identifiable entities in the external world – they do have a kind of referent that can be accessed via direct perception, more specifically ‘proprioception’, as we have defined it in terms of all propriosensitive information we can consciously access. In the first part of the chapter, we specifically consider terms denoting bodily experiences such as ‘pain’ or ‘hunger’ and argue that their referents are identified and classified from a first-personal point of view on the basis of four main characteristics: their specific intensity, their localization in the body, their co-occurrence with other signals and above all their specific qualitative sensations. Emotions are addressed in the second part of the chapter. We suggest that there is a continuity between bodily experiences and emotions. In particular, we argue for a perceptual theory of emotions in line with that proposed by James and Lange at the end of the 19th century and developed more recently by authors such as Damasio (see also chap. 2§5, §6). The hypothesis we put forward is that the referential information that supports the categorization of emotions and therefore also our mastery of terms referring to emotions consists in the perception (i.e. the ‘proprioception’) of those bodily states and changes in bodily states which constitute our emotional experience. In the context of this discussion we examine some objections to this line of reasoning that arise from a cognitivist perspective and following authors such as Oatley, Johnson-Laird and Frijda, we distinguish between basic emotions that can be identified and classified solely on the basis on how they feel and complex emotions whose identification and classification additionally depends on cognitive factors. To describe how emotions are identified and classified on the basis of how they feel, we rely on Marcel and Lambie’s distinction between an ‘emotion state’ and an ‘emotion experience’. Both notions indicate kinds of feelings that we consciously experience. However, they describe first-order and second order emotion awareness respectively. The emotion state is the feeling we have of the bodily states and changes that occur when we are experiencing an emotion, while the emotion experience is the fully developed and integrated emotion we both experience and are, with reflection, aware of experiencing. On the basis of this differentiation, we also show that the same characteristics that aid in the identification and classification of bodily experiences (specific qualitative sensations; somatic localization; specific intensity; presence/absence of specific concomitant sensations) can also be used for the identification and classification of emotions – at least basic emotions. In the last two sections of the chapter we present some clinical evidence on the semantic competence of people who suffer from Alexithymia and Autism Spectrum Disorder which supports the conclusions of our preceding analyses. -/- Chapter 6 The ‘Proprioceptive’ Component of Abstract Concepts -/- Abstract. In this chapter, we address the issue of whether the mastery of abstract words requires only inferential knowledge and thus, if the concepts that support the mastery of abstract words include only linguistic information. We start by differentiating the notions of ‘abstract’ and ‘general’ which are often erroneously confused. We then identify a strict definition of abstract, as contrasted with ‘concrete’, that applies to words or concepts whose referent cannot be experienced by the senses. We argue that abstract words/concepts would be better described as theoretical, because they are usually conceived as structured sets of inferential knowledge expressed linguistically; that is, as small theories. Pointing out parallels with Carnap’s analysis of this issue in philosophy of science, we hypothesize that words/concepts denoting non-observable entities are not all ‘equally theoretical’, because their link to sensory experience can be stronger or weaker. We revive the distinction, inspired by Quine, between theoretical and intertheoretical concepts/words. This distinction relies on the fact that the former – unlike the latter – retains a strong, although indirect, connection with perception. In Quine’s discussion, perception is understood uniquely in terms of observability, i.e. of external sensory experience. Here we argue, however, that bodily, ‘proprioceptive’ (i.e. propriosensitive) experience can also serve to referentially ground theoretical (i.e. abstract) concepts/words. We frame this issue using the example of the theoretical concept ‘freedom’ and Lakoff’s hypothesis that this concept is developed on the basis of bodily information. We contrast this with the example of ‘democracy’ which more closely resembles an intertheoretical concept/word. Furthermore, we show that one of the classical views put forward in psycholinguistic research to explain how abstract concepts are mentally represented – i.e. Paivio’s Dual Coding Theory – points in the same direction as our analysis. The same is true of Barsalou’s work suggesting that we use internal information to understand at least some abstract words. To sustain this position, we put forward two lines of evidence: the first comes from psycholinguistic studies while the second examines deficits of semantic competence exhibited by people with Autism Spectrum Disorder. On the basis of our analysis, we put forward a classification that distinguishes between different kinds of concreteness and different degrees of abstraction: concepts/words referring to body experiences and basic emotions are described as analogous to concrete concepts/words because they are grounded in perceptual (i.e. propriosensitive) experience, while abstract concepts/words are considered more or less abstract depending on whether they are intratheoretical (and rely entirely on inferential information) or theoretical (and are partially grounded in perceptual – or more often in propriosensitive perceptual – information). In the last section of the chapter we consider two scales that have been used in psycholinguistic research to measure the degree of concreteness vs. abstractness of words and we show that – used conjointly – they can provide a measure of the internal vs. external grounding of specific words. (shrink)

Aphantasia, a recently labelled spectrum condition affecting mental imagery, has brought to the fore the centrality of imagination in our lives. Intuitively it may seem that we cannot have a normal life without the possession of imaginative abilities. Yet, aphantasics do not seem to be much affected by their condition. Can aphantasia tell us anything about the nature and role of our imaginative abilities? I contend that an important distinction that can shed light on this question has been largely overlooked, (...) namely that between two senses of mental imagery: as a type of mental content (viz., mental imagery strictly speaking), and as a kind of psychological attitude (viz., sensory imagination). Drawing on this distinction, I suggest three possible conditions: (i) impairment in mental imagery only, (ii) impairment in sensory imagination only, (iii) impairment in both mental imagery and sensory imagination. I show that core cases of aphantasia are better understood as impairments in sensory imagination only, but I indicate empirical strategies to investigate whether some cases of aphantasia rather involve impairments in mental imagery, which would point toward a plurality of forms of aphantasia. Sensory imagination, however, does not exhaust the imaginative realm, therefore we shouldn’t jump to the hasty conclusion that aphantasics have no imagination. Most aphantasics lack sensory imagination, but arguably can exploit other forms of imagination. This would explain in which sense they still possess imaginative abilities. (shrink)

According to the popular Grounded Cognition Model (GCM), the sensory and motor features of concepts, including word meanings, are stored directly within neural systems for perception and action. More precisely, the core claim is that these concrete conceptual features reuse some of the same modality-specific representations that serve to categorize experiences involving the relevant kinds of objects and events. Research in semantic typology, however, has shown that word meanings vary significantly across the roughly 6500 languages in the world. (...) I argue that this crosslinguistic semantic diversity has significant yet previously unrecognized theoretical consequences for the GCM. In particular, to accommodate the typological data, the GCM must assume that the concrete features of word meanings are not merely stored within sensory/motor brain systems, but are represented there in ways that are, to a nontrivial degree, language-specific. Moreover, it must assume that these conceptual representations are also activated during the nonlinguistic processing of the relevant kinds of objects and events (e.g., during visual perception and action planning); otherwise, they would not really be grounded, which is to say, embedded inside sensory/motor systems. Crucially, however, such activations would constitute what is traditionally called linguistic relativity—that is, the influence of language-specific semantic structures on other forms of cognition. The overarching aim of this paper is to elaborate this argument more fully and explore its repercussions. To that end, I discuss in greater detail the key aspects of the GCM, the evidence for crosslinguistic semantic diversity, pertinent work on linguistic relativity, the central claim that the GCM entails linguistic relativity, some initial supporting results, and some important limitations and future directions. (shrink)

Revelation, or the view that the essence of phenomenal properties is presented to us, is as intuitively attractive as it is controversial. It is notably at the core of defences of anti-physicalism. I propose in this paper a new argument against Revelation. It is usually accepted that low-level sensory phenomenal properties, like phenomenal red, loudness or brightness, stand in relation of similarity and quantity. Furthermore, these similarity and quantitative relations are taken to be internal, that is, to be (...) fixed by what their relata are. I argue that, under some plausible additional premises, no account of what grounds these relations in the essence of their relata is consistent with Revelation, at least if we take common phenomenological descriptions for granted. As a result, the plausibility of Revelation is undermined. One might however resist this conclusion by weakening the epistemic relation postulated between subjects and their phenomenal properties. (shrink)

Almost any mainstream reading about the nature of Kant's 'content of cognition' in both non-conceptualist and conceptualist camps agree that 'singular representations' (sensible intuitions) are, at least in some weak sense, objectdependent because they supervene on a manifold of sensations that are given through the disposition of our sensibility and parallel thus the real and physical components of the world (cf. McDowell 1996, Allison 1983, Ginsborg 2008, Allais 2009). The relevant class of sensible intuitions should refer, as they argue, only (...) to empirical and not to pure ones. Kant's transcendental argument creates, however, no implications as to the metaphysics of properties. Neither does he consider the world to be consisted of sensory content simpliciter nor do sensations refer to objects per se. Instead, he provides an all-encompassing pattern for sensible intuitions of any kind through the representation of space as a cognitive map in that an object can be represented if spatial properties are attributed to it. Sensible intuitions of any kind could be referring, that is to say, and can be conceptualized if they are spatial. Consequently and unlike the contemporary philosophy of perception, Kant contrasts sensible intuitions and pure concepts of understanding 'altogether' against one single experience, from which the justification of objects should proceed. In other words, what stands at the core of exposing the content of cognition concerns not the phenomenological status and actuality of sensible intuitions in the sense of 'bits of experiential intake', but the logical structure of possibility of sensible intuitions of any (external or internal) causal background. The aim of this discussion is to clarify that Kant's transcendental idealism mutatis mutandis reviews multiple and diverse kinds of 'data of mind' and cognition in the background, without reducing the content of cognition to metaphysically determined referents as 'matters of fact' and to pure concepts of understanding. Sensible intuitions in the sense of content of cognition vary, most importantly, from unstructured and unjustifiable data of mind including (physical) contents of perception and stuff of mind and also from reflective and intellectual intuitions that are the cognates of the structured complex singular representations. Put it in simple terms, Kant advocates the thesis that 'facts' are objects for concepts if they are already well-founded trough the cognitive map of the representation of space. -/- . (shrink)

Action is a means of acquiring perceptual information about the environment. Turning around, for example, alters your spatial relations to surrounding objects and, hence, which of their properties you visually perceive. Moving your hand over an object’s surface enables you to feel its shape, temperature, and texture. Sniffing and walking around a room enables you to track down the source of an unpleasant smell. Active or passive movements of the body can also generate useful sources of perceptual information (Gibson 1966, (...) 1979). The pattern of optic flow in the retinal image produced by forward locomotion, for example, contains information about the direction in which you are heading, while motion parallax is a “cue” used by the visual system to estimate the relative distances of objects in your field of view. In these uncontroversial ways and others, perception is instrumentally dependent on action. According to an explanatory framework that Susan Hurley (1998) dubs the “Input-Output Picture”, the dependence of perception on action is purely instrumental: "Movement can alter sensory inputs and so result in different perceptions… changes in output are merely a means to changes in input, on which perception depends directly" (1998: 342). -/- The action-based theories of perception, reviewed in this entry, challenge the Input-Output Picture. They maintain that perception can also depend in a noninstrumental or constitutive way on action (or, more generally, on capacities for object-directed motor control). This position has taken many different forms in the history of philosophy and psychology. Most action-based theories of perception in the last 300 years, however, have looked to action in order to explain how vision, in particular, acquires either all or some of its spatial representational content. Accordingly, these are the theories on which we shall focus here. -/- We begin in Section 1 by discussing George Berkeley’s Towards a New Theory of Vision (1709), the historical locus classicus of action-based theories of perception, and one of the most influential texts on vision ever written. Berkeley argues that the basic or “proper” deliverance of vision is not an arrangement of voluminous objects in three-dimensional space, but rather a two-dimensional manifold of light and color. We then turn to a discussion of Lotze, Helmholtz, and the local sign doctrine. The “local signs” were felt cues for the mind to know what sort of spatial content to imbue visual experience with. For Lotze, these cues were “inflowing” kinaesthetic feelings that result from actually moving the eyes, while, for Helmholtz, they were “outflowing” motor commands sent to move the eyes. -/- In Section 2, we discuss sensorimotor contingency theories, which became prominent in the 20thcentury. These views maintain that an ability to predict the sensory consequences of self-initiated actions is necessary for perception. Among the motivations for this family of theories is the problem of visual direction constancy—why do objects appear to be stationary even though the locations on the retina to which they reflect light change with every eye movement?—as well as experiments on adaptation to optical rearrangement devices (ORDs) and sensory substitution. -/- Section 3 examines two other important 20th century theories. According to what we shall call the motor component theory, efference copies generated in the oculomotor system and/or proprioceptive feedback from eye-movements are used together with incoming sensory inputs to determine the spatial attributes of perceived objects. Efferent readiness theories, by contrast, look to the particular ways in which perceptual states prepare the observer to move and act in relation to the environment. The modest readiness theory, as we shall call it, claims that the way an object’s spatial attributes are represented in visual experience can be modulated by one or another form of covert action planning. The bold readiness theory argues for the stronger claim that perception just is covert readiness for action. -/- In Section 4, we move to the disposition theory, most influentially articulated by Gareth Evans (1982, 1985), but more recently defended by Rick Grush (2000, 2007). Evans’ theory is, at its core, very similar to the bold efferent readiness theory. There are some notable differences, though. Evans’ account is more finely articulated in some philosophical respects. It also does not posit a reduction of perception to behavioral dispositions, but rather posits that certain complicated relations between perceptual input and behavioral provide spatial content. Grush proposes a very specific theory that is like Evans’ in that it does not posit a reduction, but unlike Evans’ view, does not put behavioral dispositions and sensory input on an undifferentiated footing. (shrink)

Yoga is hugely popular around the world today, yet until now little has been known of its roots. This book collects, for the first time, core teachings of yoga in their original form, translated and edited by two of the world's foremost scholars of the subject. It includes a wide range of texts from different schools of yoga, languages and eras: among others, key passages from the early Upanisads and the Mahabharata, and from the Tantric, Buddhist and Jaina traditions, (...) with many pieces in scholarly translation for the first time. Covering yoga's varying definitions across systems, models of the esoteric and physical bodies, and its most important practices, such as posture, breath control, sensory withdrawal and meditation, Roots of Yoga is a unique and essential source of knowledge. (shrink)

Various attempts have been made recently to bring Husserl into the contemporary analytic discussion on sensory illusion and hallucination. On the one hand, this has resulted in a renewed interest in what one might call a ‘phenomenology of sense-deception.’ On the other hand, it has generated contrasting—if not utterly incompatible—readings of Husserl’s own account of sense perception. The present study critically evaluates the contemporary discourse on illusion and hallucination, reassesses its proximity to Husserl’s reflection on sensory perception, and (...) highlights the philosophical limits and structural deficiencies of the current debate in light of some of Husserl’s insights. The analysis first provides a synopsis of the argumentative structures, aims, and assumptions informing the conjunctivism-disjunctivism debate. This assessment is then critically elaborated through the lens of Husserlian phenomenology in its historical and theoretical distance from the recent debate. Contrary to certain readings of Husserl, the reconstruction of some cardinal phenomenological themes provides all the elements necessary to dislocate his own account from the conjunctivism-disjunctivism dispute, by means of both a ‘global’ and a ‘local’ analysis, and both exegetically and theoretically. Most importantly, a ‘return’ to Husserl shows the philosophical untenability of the whole controversy as not only leaving untouched the core problem of perception but also altering some of its essential traits. This critique of the image of experience portrayed in the contemporary discussion is conducted through a phenomenological clarification of perception as a distinct ‘structure of rules’ of consciousness and, more specifically, by means of a descriptive analysis centered on the core notion of horizonal-intentionality. (shrink)

This commentary introduces fascia, our bodily connective tissue, as a contribution to thinking body as process beyond mind–body dualisms. Research in the field of Fascia Studies has shown that fascias’ core qualities are shifting and sliding in tensional responsiveness and that its both/and tissue-and-system features challenge clear-cut definitions. Acknowledging these characteristics of human physiology in novel ways, and in particular fascia as our largest sensory organ, becomes relevant to ontologies, alterities and research methodologies emphasizing experience and transdisciplinarity. Importantly, (...) the notion is never to theorize fascia as model or metaphor but as quotidian processual responsive proposition. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Journal of the History of Philosophy 39.2 (2001) 304-305 [Access article in PDF] Wildfeuer, Armin G. Praktische Vernunft und System. Entwicklungsgeschichtliche Untersuchungen zur ursprünglichen Kant-Rezeption Johann Gottlieb Fichtes. Stuttgart-Bad/Cannstatt : Frommann-Holzboog, 1999. Pp. 596. Cloth, DM 168. The subtitle of this book, a slightly revised dissertation from the University of Bonn (1994), reads: "Investigations into the developmental history of Johann Gottlieb Fichte's original reception of Kant." The work comes (...) to almost 600 pages. The main text is heavily overlaid with detailed footnotes, extensive quotations and supplementary material in smaller print and narrow line spacing. To the reader who is patient enough to face this scholastic mode of presentation, there emerges behind it a valuable contribution to our overall understanding of Fichte's philosophical work in general and its core discipline, the Wissenschaftslehre or first, transcendental philosophy, in particular.In the grand narrative about the development of German idealism Fichte is placed between Kant and Schelling. More precisely, he is typically portrayed as continuing but also revising Kant's work under the double influence of the leading early post-Kantian, Karl Leonhard Reinhold (1758-1823), and the skeptical anti-Kantian and anti-Reinholdian, Gottlob Ernst Schulze (1761-1833), called "Aenesidemus" after the title of his anonymous main work.Wildfeuer's investigations supplement this picture with a detailed consideration of what could be called "Fichte before Fichte": the early development of Fichte's thought, prior to his encounter with Reinhold and prior even to his encounter with Kant (1790). To be sure, Wildfeuer also deals with Fichte's continued philosophical development up through 1794, and he has many interesting things to say about the lasting presence of Fichte's earliest concerns in his more mature work. But the chief merit of the book is the sustained attention it pays to the very beginnings of Fichte's thought.Much of the prehistory of Fichtean philosophy has to be conjectured, given the scarcity of documents about Fichte's years of study (1780-84) and of his work as itinerant tutor (1785-1793). From Fichte's own testimony in his correspondence it is clear that prior to encountering Kant's three Critiques he held a determinist position regarding nature as well as human conduct. Based on some indications in Fichte's later works, Wildfeuer identifies as the chief source of Fichte's determinism the work of Karl Ferdinand Hommel (1722-1781), a professor of law at Leipzig, whom Fichte could have heard as a student and whose pseudonymous treatise Alexander von Joch... On Reward and Punishment According to Turkish Laws (1770) Fichte cites. Hommel (alias von Joch) maintains a deterministic view of human action, while justifying the social practice of punishment and reward. In particular, he maintains the dependence of the will on the intellect and of the latter on sensations or sensory impressions. Wildfeuer refers to this position, as it was temporarily adopted by Fichte, as that of the primacy of the understanding over the will.But Wildfeuer also shows that from early on Fichte's determinist leanings in speculation were counterbalanced by the conviction that feeling, especially feeling in religious matters, is an equally valid source of truth. For Wildfeuer, this early duality of speculation and feeling is the lasting basis of Fichte's life-long concern with reconciling the competing demands of head and heart. In particular this pre-Kantian key concern [End Page 304] in Fichte informs the latter's central systematic occupation with the unity of the mind amidst its differentiation into faculties or kinds of mental activity.Further texts which Wildfeuer examines in pursuit of the pre-Kantian Fichte are his Latin Valedictory Address, given upon graduating from one of Germany's finest secondary schools at the time, the Princely College of Pforta (1780), and the "Aphorisms on Religion and Deism" (1790).On the basis of this material Wildfeuer goes on to reconstruct the distinct reception that each of Kant's three Critiques received by Fichte. According to Wildfeuer, the Critique of Pure Reason originally was read by... (shrink)

Contemporary philosophical and scienti .c discussions of mind developed from a 'proto-concept of mind ',a mythical,tradition- alistic,animistic and quasi-sensory theory about what it means to have a mind. It can be found in many di .erent cultures and has a semantic core corresponding to the folk-phenomenological notion of a 'soul '.It will be argued that this notion originates in accurate and truthful .rst-person reports about the experiential content of a special neurophenomenological state-class called 'out-of-body experiences '.They can be (...) undergone by every human being and seem to possess a culturally invariant cluster of functional and phenomenal core properties similar to the proto-concept of mind. The common causal factor in the emergence and development of the notion of the soul and the proto-concept of mind may consist in a yet to be determined set of properties realized by the human brain, underlying the cluster of phenomenal properties described in the relevant first-person reports. This hypothesis suggests that such a neurofunctional substrate ed human beings at different times, and in widely varying cultural contexts, to postulate the existence of a soul and to begin developing a theory of mind. (shrink)

A central question, if not the central question, of philosophy of perception is whether sensory states have a nature similar to thoughts about the world, whether they are essentially representational. According to the content view, at least some of our sensory states are, at their core, representations with contents that are either accurate or inaccurate. Tyler Burge’s Origins of Objectivity is the most sustained and sophisticated defense of the content view to date. His defense of the view (...) is problematic in several ways. The most significant problem is that his approach does not sit well with mainstream perceptual psychology. (shrink)

C. I. Lewis’s version of pragmatism, which he called “conceptualistic pragmatism,” has been little studied and is nowadays overlooked, eclipsed by the more famous pragmatisms of Dewey and James. However, it was Lewis’s version that came to dominate the formation of post-1945 pragmatism in the United States. It provided the framework in which Quine (his former student), Sellars, Davidson, Rorty and Brandom operated. Roughly, that structure involved a passive, sensory ineffable given and an ordering and classification of the given (...) by a priori categories. Comprehending those categories was a matter of apprehending a priori truths, but those categories were also changeable. Rational change involved giving some up and substituting others to meet certain basic human interests. We thus have the picture of mind and world that culminates in a certain sense in Brandom’s philosophy: External causal inputs linked to an internal normative inferential network which then results in causal outputs of linguistic shape. This is very different from the classical German idealist conception of mind and world, which takes the distinguishability-but-inseparability of concept and sensory intuition as its core. (shrink)

Over the last decade, attention has crawled from out of the shadows into the philosophical limelight with several important books and widely read articles. Carolyn Dicey Jennings has been a key player in the attention revolution, actively publishing in the area and promoting awareness. This book was much anticipated by insiders and does not disappoint. It is in no way redundant with respect to other recent monographs, covering both a different range of material and developing novel positions throughout. The book (...) might have been called The Attending Self, since Jennings defines attention as mental prioritization controlled by the self. This invocation of the self is among her central innovations, and may prove to be the main source of controversy. I will highlight points of contention here, but want to emphasize at the outset that the book is essential reading for anyone interested in attention. Jennings also contributes to a range of other debates, which will help a broader audience appreciate the importance this topic.After a brief introduction, Jennings provides “a philosophical landscape” of attention (chap. 2), tracing the concept through history. This is an invaluable achievement that will be welcomed by both newcomers and veterans. Jennings exhibits enormous breadth, covering areas that contemporary philosophers of mind tend to neglect: medieval philosophy, Buddhist thought, and phenomenology, to name a few. We also get perspectives on attention from core figures in the Western canon, such as Descartes, Locke, and Kant, as well as thinkers who gave the topic a more political inflection: Mary Wollstonecraft and W. E. B. DuBois. Jennings surveys contemporary literature as well, locating recent work in these older lineages. Some authors get more treatment later in the book (e.g., William James and Wayne Wu). Overall, Jennings provides the best overview of this history I have seen. She proves that attention is not a new topic, but one with deep roots and one that can inform current debates; Jennings draws on these roots throughout. I would love to see a companion piece surveying scientific theories, including “gain control” and “biased competition,” which get little airtime in the book. Some recent philosophical theories are under-explored as well, including Chris Mole’s concept of cognitive unison (Jennings discusses other aspects of his view), Carlos Montemayor and Harry Haladjian’s exploration of attention’s diversity (we get a touch of this), and my own proposal that attention is a gateway to working memory (not mentioned here). That said, no extant survey is more complete.Chapter 3 begins with the empirical claim that attention is regulated by slow brainwaves, and then takes up two issues. The first is mental causation. Endorsing moderate emergentism, Jennings argues that slow brain waves are causally efficacious even though they are not reducible to lower-level processes. (The metaphysics and neuroscience are presented accessibly, aided by three appendixes.) Second, Jennings argues that these slow brain waves indicate that attention is controlled by the self. As someone who was never moved by the mental causation problem—I don’t think overdetermination threatens efficacy—I would have welcomed more development of this second issue. For one thing, in linking attention to subjective control, Jennings eschews the idea that there can be purely “bottom-up” attention driven by stimulus features alone. This goes against the orthodoxy in attention science, and makes it hard for her to accommodate phenomena such as “pop-out,” or the commonsense idea that attention can be “captured” by a sudden flash or loud sound. For another thing, I wanted to hear more on why Jennings relates slow brain waves to the self. Does this include the slow waves that occur during deep sleep? Is there even such a thing as the self? Is there one self or many? How do slow brain waves reflect our interests, projects, values, self-conceptions, autobiographical narratives, or social identities? Does the social self invoked by Wollstonecraft and DuBois gain a foothold here? The whole chapter campaigns against metaphysical reductionism, but arrives at a perspective on the self that will strike some readers as highly reductive.In the fourth chapter, Jennings sheds further light on her conjecture that attention involves the self by advancing the thesis that attention endows sensory information with meaning. On the face of it, this may sound implausible. Object recognition, reading, and many other meaning-involving processes can take place outside of attention and outside of consciousness. But Jennings has a richer notion of “meaning” in mind. She develops the idea of “subject unity,” which is imposition of structure on perception that reflects the interests of the perceiving subject. This, she claims, is what brings perception into the space of reasons. Along the way, she has interesting observations about binding, feature integration, and demonstrative reference. The material is highly original, and Jennings’s postulation of interest-based perceptual organization is compelling. At the same time, one might wonder whether interests are really relegated to the ambit of attentional control. Consider the cocktail party effect, wherein one’s own name captures attention. This implies a preattentive filter that reflects our interests. Emotionally charged words, facial expressions, and dangerous objects also work this way, and social biases can operate preattentively as well. If these reflect our interests, then meaning may arise outside attention.Jennings’s fifth chapter explores the relationship between attention and consciousness. Some authors have argued that attention is necessary and sufficient for consciousness. Jennings focuses primarily on the necessity claim. She does not systematically review the empirical literature here, but she addresses some of the key findings, and effectively rebuts studies that allege to find consciousness outside attention. She does not rest her case there, however. Instead, she identifies a new class of examples that purport to establish the possibility of consciousness without attention. Her central example she calls “conscious entrainment,” which is what we experience when engaged in habitual or skilled activities. Other possible examples touched on in the chapter include hypervigilance in individuals with attention deficit hyperactivity disorder (ADHD), passive movie watching, dreaming, and “attentional neglect.” These states all involve intense focus, Jennings admits, but not attention. To some readers this may sound contradictory. Isn’t focus a kind of attention? Don’t these states of absorption involve stimulus selection and enhancement of relevant features, suppression of distractors, and other hallmarks of attention? Jennings says none of this is tantamount to attention. Recall that she thinks attention is controlled by the self. In these cases, we are invited to imagine that the self takes a passive role: control is either ceded to the world (movie watching) or to previously mastered routines (skills and habits). Thus, Jennings’s claim that there is no attention in these cases hangs on her contentious thesis that attention requires a controlling self. One might also push back by arguing that, in some of Jennings’s allegedly selfless examples, the self remains involved. Skilled activities and hypervigilance, for example, can reflect personal interests.Skills and hypervigilance get more airtime in chapter 6. There, Jennings turns to questions of responsibility—a neglected topic in attention research. The chapter begins with a manslaughter trial in which the teenage plaintiff was given a light sentence because the judge evidently believed that the teen’s ADHD compromised his ability to control his actions. The example may be a bit triggering for people who have a personal relationship with this diagnosis, but, putting that aside, Jennings uses it to introduce the important concept of attention-based control. With reduced control, Jennings argues, comes reduced responsibility. I am inclined to see ADHD as involving dysregulation of attention (difficulty disengaging and dividing attention, for example) rather than diminished attention, but that can still be characterized as an issue with control of attention; therefore ADHD still illustrates Jennings’s point that there is a link between responsibility and control of attention. This, it turns out, is only half of her story. Having argued for this link, one might expect Jennings to follow Wayne Wu, who contends that attention is necessary for action, and hence for responsibility. She does not. Instead, she says argues that responsibility can also arise in cases of “strategic automaticity.” This brings us back to skills. When skills are deployed, action is governed by learned pairings between stimuli and responses. The choice to exercise a skill requires attention, so attention is needed for being a responsible agent, but once a skill kicks in, attention is no longer required, and one can be held responsible for actions performed skillfully—thus attention is not required for responsibility tout court. Jennings addresses an opposing view (defended by Wu, Ellen Fridland, and Barbara Montero), according to which skills involve “automatic attention” rather than no attention. Jennings worries that this move will collapse the distinction between attention and other kinds of selection and filtering that occur throughout the nervous system, including the retina. She says that the attentional interpretation of skilled action is at odds with the lack of top-down reweighing of sensory inputs, regulated by lateral frontal cortex. These objections to automatic attention warrant response. My own view is that attention involves broadcasting to working memory, so retinal filtering is ruled out. Jennings’s insistence on top-down reweighing will not move those who believe attention can be purely bottom-up. For all that, I side with Jennings in wanting to allow for responsibility without attentional control. I think we can be responsible for implicit biases, for example. I also think attentional control is insufficient for responsibility, as when we act under duress.Jennings offers fresh perspective on the nature of attention, and its role in meaningful perception, consciousness, action, and responsibility. Each chapter can be read separately, but they hang together well, and each reflects her thesis that attention is essentially linked to the self. Though I am skeptical of that strong claim, we would do well to follow Jennings in regarding attention as interest-laden interface between mind and world. I look forward to a sequel in which attention is related to richer conceptions of identity, and where the political consequences of this link are actively explored. Meanwhile, one can hardly fault Jennings for covering too little. She tackles a remarkable range of topics, from metaphysics to ethics. Her arguments throughout demand response, repay careful study, and propel the field forward. (shrink)

This monograph presents new material on Francisco Suárez’s comprehensive theory of sense perception. The core theme is perceptual intentionality in Suárez’s theory of the senses, external and internal, as presented in his Commentaria una cum quaestionibus in libros Aristotelis De anima published in 1621. The author targets the question of the multistage genesis of perceptual acts by considering the ontological “items” involved in the procession of sensory information. However, the structural issue is not left aside, and the nature (...) of the relationship due to which our perceptions are mental representations of this or that object is also considered. The heuristic historiographical background includes not only the theories of classical authors, such as Aristotle and Aquinas, but also those of late medieval authors of the fourteenth century. These are headed by John Duns Scotus, John of Jandun, Peter Auriol and Peter John Olivi. Readers will discover the differences between Suárez’s and Aquinas’s views, as well as other sources that may have served as positive inspiration for the Jesuit’s theory. By considering the late medieval philosophy of the fourteenth century, this book helps, to a certain extent, to fill a gap in the historiography of philosophy regarding the link between late medieval and early modern scholasticism. In the first part of the book, the metaphysics of the soul and powers is considered. Chapters on the external senses follow, covering topics such as the sensible species, the causes of sensation, self-awareness, and the ordering of the external senses. A further chapter is devoted to the internal senses and the author argues that by reducing the number and functional scope of the interior senses Suárez deepens the gap between the external senses and the intellect, but he reduces it through emphasizing the unifying efficacy of the soul.This book brings a synthetic and unifying perspective to contemporary research and will particularly appeal to graduate students and researchers in theology and philosophy, especially philosophy of mind. (shrink)

This article considers Helmholtz’s relation to philosophy, including Fichte’s philosophy. Recent interpreters find Fichtean influence on Helmholtz, especially concerning the role of voluntary movement in distinguishing subject from object, or “I” from “not-I.” After examining Helmholtz’s statements about Fichte, the article describes Fichte’s ego-doctrine and asks whether Helmholtz could accept it into his sensory psychology. He could not accept Fichte’s core position, that an intrinsically active I intellectually intuits its own activity and posits the not-I as limiting and (...) determining that activity, because that account requires cognitive abilities that conflict with Helmholtz’s claim that the development of spatial perception relies primarily on associative memory and involves no direct awareness of the ego’s activity as such. Helmholtz would have known various accounts of the distinction between subject and object, or self and world, from sensory physiology, including associative accounts invoking voluntary motor movements and accounts describing checks on the perceiver’s activity. Some of the accounts cite Fichte on the I and not-I, but most do not, and none adopt Fichte’s Idealism. Finally, the article examines Helmholtz’s relation to metaphysics, finding that in all periods he rejected Fichtean Idealism and that the modest metaphysics of his mature period is a version of structural realism. (shrink)

The method of phenomenal contrast aims to shed light on the phenomenal character of perceptual and cognitive experiences. Within the debate about cognitive phenomenology, phenomenal contrast arguments can be divided into two kinds. First, arguments based on actual cases that aim to provide the reader with a first-person experience of phenomenal contrast. Second, arguments that involve hypothetical cases and focus on the conceivability of contrast scenarios. Notably, in the light of these contrast cases, proponents and skeptics of cognitive phenomenology remain (...) steadfast in their views. I provide an explanation of the method’s dialectical ineffectiveness by focusing on first-person performances of phenomenal contrast tasks. In particular, I argue that introspective judgments about phenomenology are regimented by the view initially held. Understanding the underlying mechanisms responsible for the dialectical standoff in the face of phenomenal contrast cases casts light on introspection-based arguments for phenomenology in general. -/- https://www.cambridge.org/core/journals/journal-of-the-american-philosophical-association/article/on-the-limits-of-the-method-of-p henomenal-contrast/. (shrink)

This book argues that external world skepticism is false for straightforward reasons. To make this case it develops and defends a neglected methodological approach involving a distinctive process of first-person reflection. We begin within the practices, procedures, and commitments of ordinary life and science. We then seek some reason to think skepticism true, carefully scrutinizing all the most important arguments. Finding no reason to think it true and decisive reasons to think it false, we reject it. As the book shows, (...) this is a fully satisfactory refutation. No epistemological theorizing is needed. The book begins by exploring and defending this method in seminal works of G. E. Moore and J. L. Austin. Turning to contemporary epistemology, it asks why we shouldn't appeal to considerations about the world when responding to skeptical argumentation. No good reason is found, despite exploration of a wide range of central issues in recent epistemology. To the contrary, perfectly ordinary examples indicate that it is correct to reject the skeptical scenarios - the dreaming worry, Descartes' evil demon, the brain-in-a-vat - by appealing to things we know about the world. Likewise, considerations about sensory perception do not provide any reason to think our evidence excludes considerations about the world. Along the way, methodological lessons are drawn from consideration of the most important skeptical arguments in the contemporary literature. The book concludes by defending the satisfactoriness of its approach. What emerges is a new understanding of what philosophical illumination might look like in relation to core epistemological issues. (shrink)

The process of transmitting ballet’s complex technique to young dancers can interfere with the innate processes that give rise to efficient, expressive and harmonious movement. With the intention of identifying possible solutions, this article draws on research across the fields of neurology, psychology, motor learning, and education, and considers their relevance to ballet as an art form, a technique, and a training methodology. The integration of dancers’ technique and expressivity is a core theme throughout the paper. A brief outline (...) of the historical development of ballet’s aesthetics and training methods leads into factors that influence dancers’ performance. An exploration of the role of the neuromotor system in motor learning and the acquisition of expert skills reveals the roles of sensory awareness, imagery, and intention in cuing efficient, expressive movement. It also indicates potentially detrimental effects of conscious muscle control, explicit learning and persistent naïve beliefs. Finally, the paper presents a new theory regarding the acquisition of ballet skills. Recontextualization theory proposes that placing a problematic task within a new context may engender a new conceptual approach and/or sensory intention, and hence the genesis of new motor programs; and that these new programs may lead to performance that is more efficient, more rewarding for the dancer, more pleasing aesthetically, and more expressive. From an anecdotal point of view, this theory appears to be supported by the progress of many dancers at various stages of their dancing lives. (shrink)

In this paper I provide a comprehensive account of Leibniz's important but neglected distinction between the esoteric and the exoteric. I argue that Leibniz distinguished between esoteric and exoteric modes of presentation, and esoteric and exoteric content. He endorsed the esoteric mode, which was modeled on the geometrical model of demonstration, as the ideal mode of presentation in metaphysics. However, he thought it would be a mistake to introduce his metaphysics to people in the form of an esoteric treatise. This (...) was not due to a problem with the esoteric mode per se. The problem stemmed from the gap between the esoteric content of his metaphysics and the received views of his time, particularly those that were grounded in what he regarded as sensory prejudices. This misguided reliance on the senses made it extremely difficult for people to conceive of the purely intelligible concepts and principles at the core of his metaphysics. Leibniz used pedagogical exoteric writing to compose texts that could function as intellectual stepping-stones that would enable his readers traverse the gulf between received opinions and esoteric truth. I isolate the key rhetorical strategies that Leibniz utilized in his pedagogical exoteric writing, and explain how one can develop principled esoteric/exoteric interpretations of his writings. Awareness of his nuanced views on the esoteric and the exoteric will allow us to more adequately address central questions in Leibniz scholarship about the extent to which his views change over time, about whether he attains considered views on particular topics, and about the extent to which his philosophy is systematic. (shrink)

Ideas II has been the source of several issues in the broader phenomenological literature. Some of these issues focus on the particular aims of that work and its place within the system of transcendental constitutive and genetic Phenomenology. Others are concerned with its significance in the development of Husserl’s thought on the possibility and direction of a phenomenological philosophy of natural science (still under discussion), along with a systematic phenomenological grounding of the human sciences. Furthermore, the manuscript of Ideas II (...) seems to have contributed to the formation of Heidegger’s views on the nature and status of Husserl’s Phenomenology and of Phenomenology in general. Thus, an examination of the actual meaning of the analyses in Ideas II would contribute significantly to the understanding of a variety of important issues in phenomenological philosophy. Husserl’s so-called “transcendental turn” between 1905 and 1907 represents the beginning of the path to Ideas II. From 1907 onwards, Husserl attempted a clear and systematic development of his ideas on the transcendental constitution of intentional beings in their—whatever—actuality. This is a task he undertook in the Ideas I, in which he expounds the general core of the new discoveries that allowed him to go beyond the analyses of the Logical Investigations. Having established transcendental subjectivity as the ultimate ground where “the Mothers” accomplish their constitutive work, Husserl became convinced that he had discovered the source from which all Being (Sein) arises. [...] In Ideas II, inanimate nature is presented as comprising the most basic region and as the fundament for the constitution of all the other ontological regions (or regions of Being or Being-regions). But, in Part I of that work (the English translation reads “Section One”), we find Husserl providing an analysis of the constitution of naturething (Naturding).1 What is Husserl’s conception of nature-things there? How do they relate to inanimate beings in general? How do they relate to the things that are supposed to be given in simple visual perception or in simple sense or sensory experience? Are they the accomplishment of a predicative or of a pre-predicative intentionality? Are they the subject matter of natural science, and in what sense— and, if not, why? The text of the Ideas II generates puzzlement and confusion, much of which is reproduced in the relevant literature. (shrink)