We explore different ways in which the human visual system can adapt for perceiving and categorizing the environment. There are various accounts of supervised (categorical) and unsupervised perceptual learning, and different perspectives on the functional relationship between perception and categorization. We suggest that common experimental designs are insufficient to differentiate between hypothesized perceptual learning mechanisms and reveal their possible interplay. We propose a relatively underutilized way of studying potential categorical effects on perception, and we test the predictions of (...) different perceptual learning models using a two‐dimensional, interleaved categorization‐plus‐reconstruction task. We find evidence that the human visual system adapts its encodings to the feature structure of the environment, uses categorical expectations for robust reconstruction, allocates encoding resources with respect to categorization utility, and adapts to prevent miscategorizations. (shrink)

RÉSUMÉ : Dans le Traité 1.4.4, Hume a présenté au nom des philosophes modernes un argument causal qui démontre que nos impressions des qualités secondaires ne ressemblent pas aux qualités des objets eux-mêmes. Les prédécesseurs de Hume n’ont pourtant pas employé d’argument causal, mais l’argument des qualités contraires. Je soutiens que la présentation qu’en a fait Hume n’est pas simplement à mettre au compte d’une différence stylistique «gratuite» mais est une correction importante dans la foulée de ses propres découvertes philosophiques.

We often feel that our perceptual experience is richer than what we can express. For instance, when flashed with a large set of letters, we feel that we can see them all, while we can report only a few. However, the nature of this subjective impression remains highly debated: while many favour a dissociation between two forms of consciousness , others contend that the richness of phenomenal experience is a mere illusion. Here we addressed this question with a classical (...) partial-report paradigm now modified to include unexpected items in the unreported parts of the stimuli. We show that even in the presence of unexpected pseudo-letters, participants still felt that there were only letters. Additionally, we show that this feeling reflects an illusion whereby participants reconstruct letters using partial letter-like information. We propose that the feeling of seeing emerges from the interplay between partially accessible information and expectations. (shrink)

Geographic information reflects ontological world views, just like any linguistic utterance. However, in comparison with spoken language, all kinds of digital information is affected by the problem of reference to an even larger extent, because of the loss of the context of speech. How can the phenomena underlying digital information be referred to in an inter-subjective way? The problem is not that machines cannot communicate, but that humans frequently misunderstand each other when communicating via machines. This book puts forward a (...) proposal about how semantic reference can be reproduced based on the operations necessary to generate a dataset. These include cognitive constructions as well as perceptual operations, i. e., operations of the human attentional apparatus. Perceptual operations allow one to share information by focusing human attention on aeGestaltsAE in the perceived space around the body. Gestalt mechanisms allow observers to make predications, i. e., to relate foci of attention. The author proposes a kind of aepractical constructivismAE guided by a formal language.The idea is to describe data aebottom-upAE in order to reconstruct the observation and abstraction process, instead of presuming abstract ontological concepts. This approach is demonstrated by reconstructing the concept of a road network, which underlies an important kind of geographic data. (shrink)

According to Rorty, Davidson and Brandom, to have an experience is to be caused by our senses to hold a perceptual belief. This article argues that the phenomenon of seeing-as cannot be explained by such a conception of perceptual experience. First, the notion of experience defended by the aforementioned authors is reconstructed. Second, the main features of what Wittgenstein called “seeing aspects” are briefly presented. Finally, several arguments are developed in order to support the main thesis of the (...) article: seeing-as cannot be explained by the conception of experience defended by Rorty, Davidson and Brandom. (shrink)

The perceptual symbol approach to knowledge representation combines structured frames and dynamic imagery. The perceptual symbol approach provides a good account of the representation of scientific models, of some types of naive theories held by children and adults, and of certain reconstructive memory phenomena. The ontological status of perceptual symbols is unclear and this form of representation does not succeed in accounting for all forms of human knowledge.

Research has shown that processing dynamics on the perceiver's end determine aesthetic pleasure. Specifically, typical objects, which are processed more fluently, are perceived as more attractive. We extend this notion of perceptual fluency to judgments of vocal aesthetics. Vocal attractiveness has traditionally been examined with respect to sexual dimorphism and the apparent size of a talker, as reconstructed from the acoustic signal, despite evidence that gender-specific speech patterns are learned social behaviors. In this study, we report on a series (...) of three experiments using 60 voices to compare the relationship between judgments of vocal attractiveness, stereotypicality, and gender categorization fluency. Our results indicate that attractiveness and stereotypicality are highly correlated for female and male voices. Stereotypicality and categorization fluency were also correlated for male voices, but not female voices. Crucially, stereotypicality and categorization fluency interacted to predict attractiveness, suggesting the role of perceptual fluency is present, but nuanced, in judgments of human voices. (shrink)

Psychophysical experiments have demonstrated large and highly systematic perceptual distortions of tactile space. Such a space can be referred to our experience of the spatial organisation of objects, at representational level, through touch, in analogy with the familiar concept of visual space. We investigated the neural basis of tactile space by analysing activity patterns induced by tactile stimulation of nine points on a 3 × 3 square grid on the hand dorsum using functional magnetic resonance imaging. We used a (...) searchlight approach within pre-defined regions of interests to compute the pairwise Euclidean distances between the activity patterns elicited by tactile stimulation. Then, we used multidimensional scaling to reconstruct tactile space at the neural level and compare it with skin space at the perceptual level. Our reconstructions of the shape of skin space in contralateral primary somatosensory and motor cortices reveal that it is distorted in a way that matches the perceptual shape of skin space. This suggests that early sensorimotor areas critically contribute to the distorted internal representation of tactile space on the hand dorsum. (shrink)

In recent years there has been a revival of a theory of conscious emotions as analogous in important ways to perceptual experiences. In the standard versions of this view emotions are construed as, potentially, perceptual disclosures of values. The model has been widely debated and criticized. In this paper I reconstruct an early, qualified version of the perceptual model to be found in the classical phenomenological approaches of Scheler and Sartre. After outlining this version of the theory, (...) I examine its prospects against objections prominent in the current debate. (shrink)

We examined the neural basis of tactile distance perception by analyzing activity patterns induced by tactile stimulation of nine points on a 3 x 3 square grid on the hand dorsum using functional magnetic resonance (fMRI). We used a searchlight approach within pre-defined regions of interests (ROIs) to compute the pairwise Euclidean distances between the activity patterns elicited by tactile stimulation. Then, we used multidimensional scaling (MDS) to reconstruct skin space at the neural level and compare it with skin space (...) at the perceptual level. Our reconstructions of the shape of skin space in contralateral primary somatosensory (SI) and motor (M1) cortices reveal that it is distorted in a way that matches the perceptual shape of skin space. This suggests that early sensorimotor areas are critical to processing tactile distance perception. (shrink)

In this paper I argue that McDowell's brand of disjunctivism about perceptual knowledge is ill‐motivated. First, I present a reconstruction of one main motivation for disjunctivism, in the form of an argument that theories that posit a “highest common factor” between veridical and non‐veridical experiences must be wrong. Then I show that the argument owes its plausibility to a failure to distinguish between justification and warrant (where “warrant” is understood as whatever has to be added to true belief (...) to yield knowledge). (shrink)

In this paper I argue that McDowell's brand of disjunctivism about perceptual knowledge is ill‐motivated. First, I present a reconstruction of one main motivation for disjunctivism, in the form of an argument that theories that posit a “highest common factor” between veridical and non‐veridical experiences must be wrong. Then I show that the argument owes its plausibility to a failure to distinguish between justification and warrant (where “warrant” is understood as whatever has to be added to true belief (...) to yield knowledge). (shrink)

The explanation of a child's discriminate responses to his environment turns on ascribing to the child a perceptual discrimination which counts certain things as more similar to one another than to some other thing. As Quine forcefully puts it:If an individual is to learn at all, differences in degree of similarity must be implicit in his learning pattern. Otherwise any response, if reinforced, would be conditioned equally and indiscriminately to any and every future episode, all these being equally similar.Now (...) for those determined to cleave to behaviourist canons, the problem is to use ‘perceptual similarity’ in explaining the subject's discriminating responses in a way which does not imply the existence of mental states and entities. What this really means is that the behaviourist must reconstruct the notion of ‘perceptual similarity', purifying it of its mentalistic dimension. So long as physicalism is a reasonable position, and while we are awaiting and abetting the neurophysiological millennium, the behaviourist's project is of significant moment. Now in Word and Object Quine does not seriously attempt to provide behavioural criteria for a subject's perceiving similarities, and he provisionally permits himself the mentalistic idiom he avows finally to eschew. (shrink)

The goal of perception is to infer the most plausible source of sensory stimulation. Unisensory perception of temporal order, however, appears to require no inference, since the order of events can be uniquely determined from the order in which sensory signals arrive. Here we demonstrate a novel perceptual illusion that casts doubt on this intuition: in three studies (N=607) the experienced event timings are determined by causality in real-time. Adult observers viewed a simple three-item sequence ACB, which is typically (...) remembered as ABC (Bechlivanidis & Lagnado, 2016), in line with principles of causality. When asked to indicate the time at which events B and C occurred, points of subjective simultaneity shifted so that the assumed cause B appeared earlier and the assumed effect C later, despite full attention and repeated viewings. This first demonstration of causality reversing perceived temporal order cannot be explained by post-perceptual distortion, lapsed attention, or saccades. (shrink)

Charles S. Peirce attempted to develop his semiotic theory of cognitive signs interpretation, which are originated in our basic perceptual operations that quasi-prove the truth of perceptual judgment representing reality. The essential problem was to explain how, by a cognitive interpretation of the sequence of perceptual signs, we can represent external physical reality and reflectively represent our cognitive mind’s operations of signs. With his phaneroscopy introspection, Peirce shows how, without going outside our cognitions, we can represent external (...) reality. Hence Peirce can avoid the Berkeleyian, Humean, and Kantian phenomenologies, as well as the modern analytic philosophy and hermeneutic phenomenology. Peirce showed that with the trio of semiotic interpretation – abductive logic of discovery of hypotheses, deductive logic of necessary inference, and inductive logic of evaluation – we can reach a complete proof of the true representation of reality. This semiotic logic of reasoning is the epistemic logic representing human confrontation in reality, with which we can achieve knowledge and conduct our behavior. However, Peirce did not complete his realistic revolution to eliminate previously accepted nominalistic and idealistic epistemologies of formal logic and pure mathematics. Here, I inquire why Peirce did not complete his historical realist epistemological revolution and following that inquiry I attempt to reconstruct it. (shrink)

William James' Radical Empiricist essays offer a unique and powerful argument for direct realism about our perceptions of objects. This theory can be completed with some observations by Kant on the intellectual preconditions for a perceptual judgment. Finally James and Kant deliver a powerful blow to the representational theory of perception and knowledge, which applies quite broadly to theories of representation generally.

This paper argues that perception is a mode of engagement with individuals and their determinate properties. Perceptual content involves determinate properties in a way that relies on our conceptual capacities no less than on the properties. The “richness” of perceptual experience is explained as a distinctive individual and property involving content. This position is developed in three steps: (i) novel phenomenological description of lived experience; (ii) detailed reconstruction of Gareth Evans’ proposal that we are capable of genuinely (...) singular thought that involves individuals under modes of presentation; (iii) re-consideration of the re-identification condition on conceptual contents. (shrink)

Many contemporary theorists charge that naïve realists are incapable of accounting for illusions. Various sophisticated proposals have been ventured to meet this charge. Here, we take a different approach and dispute whether the naïve realist owes any distinctive account of illusion. To this end, we begin with a simple, naïve account of veridical perception. We then examine the case that this account cannot be extended to illusions. By reconstructing an explicit version of this argument, we show that it depends critically (...) on the contention that perceptual experience is diaphanous, or more minimally and precisely, that there can be no difference in phenomenal properties between two experiences without a difference in the scenes presented in those experiences. Finding no good reason to accept this claim, we develop and defend a simple, naïve account of both veridical perception and illusion, here dubbed Simple, Austere Naïve Realism. (shrink)

I reconstruct Aristotle’s reasons for thinking that the intellect cannot have a bodily organ. I present Aristotle’s account of the aboutness or intentionality of cognitive states, both perceptual and intellectual. On my interpretation, Aristotle’s account is based around the notion of cognitive powers taking on forms in a special preservative way. Based on this account, Aristotle argues that no physical structure could enable a bodily part or combination of bodily parts to produce or determine the full range of forms (...) that the human intellect can understand. For Aristotle, cognitive powers with bodily organs are always spatiotemporally limited, but the understanding is not. Aristotle claims that our understanding applies to all instances of the thing understood wherever and whenever they exist. On Aristotle’s own account the intellect in its nature is only “potential,” it does not actually possess any form. Thus nothing prevents it from possessing all forms. (shrink)

Recent reconstructions of Heidegger's thoughts on ethics have a curious paradoxical feature. On the one hand, Heidegger, particularly in his Aristotle lectures of the 1920s, offers a view of practical reason on which Dasein has its “moral knowledge” in a fully perceptual, non-cognitive way. This generally sets Heidegger in opposition to the whole business of principled moral justification before the fact. On the other hand, the literature is peppered with what appear to be principled denunciations of immorality—particularly violations of (...) other Dasein—grounded in the analytic of Dasein. To see human life as having a stable ergon (“business” or “function”), with certain broad tasks to pursue and vices to avoid, is not necessarily counter-Aristotelian; on the contrary, it is basic to the kind of Aristotelianism Husserl pursued in his own lectures on ethics. Here I set Heidegger's Aristotelian model of practical reason amid the competing, though similar, Aristotelianisms of John McDowell and Husserl, which differ on their handling of the human ergon. I conclude that Heidegger's views on practical reason and moral knowledge certainly constrain and very much alter the business of moral justification, but they do not precisely rule it out. (shrink)

I reconstruct the notion of significance [_Sinnhaftigkeit_] in the later Husserl, with attention to his conceptions of judgment and transcendental logic. My analysis is motivated by the idea that an account of significance can help to connect analytic, Anglo-American conceptions of meaning as a precise, law-governed phenomenon investigated via linguistic analysis and Continental European conceptions of meaning in a broader “existential” sense. I argue that Husserl’s later work points to a transcendental-logical conception of a founding level of _significance_ [_Sinnhaftigkeit_] prior (...) to language, and that this conception meets characteristically analytic demands for precision and governance by logical constraints. At the same time, since it is based in descriptions of perceptual intentionality at the level of essential possibility, it leaves room for an account of meaning as a partially undetermined phenomenon of lived experience, and not just of our language and concepts, and thereby meets the characteristically Continental demand to take at face value meaning’s vagueness and indeterminacy in everyday human life. (shrink)

There are two related points at which J.J. Gibson’s ecological theory of visual perception remains remarkably underspecified: Firstly, the notion of information for perception is not explicated in much detail beyond the claim that it “specifies” the environment for perception, and, thus being an objective affair, enables an organism to perceive action possibilities or “affordances.” Secondly, misperceptions of affordances and perceptual illusions are not clearly distinguished from each other. Although the first claim seems to suggest that any perceptual (...) illusion amounts to the misperception of affordances, there might be some relevant differences between various ways of getting things wrong. In this essay, Gibson’s notion of “specifying” information shall be reconstructed along the lines of Fred Dretske’s relational theory of information. This refined notion of information for perception will then be used to carve out the distinction between perceptual illusions and the misperception of affordances, with some help from the “Empirical Strategy” (developed by Purves et al.). It will be maintained that there are cases where perceptual illusions actually help an organism to correctly perceive an affordance. In such cases, the prima facie misrendered informational relations involved are kept intact by a set of appropriate transformation rules. Two of Gibson’s intuitions shall thus be preserved: the objectivity of informational relations and the empowerment of the organism as an active perceiver who uses those objective relations to his specific ends. (shrink)

In contrast to Constructivist Views, which construe perceptual cognition as an essentially reconstructive process, this article recommends the Deictic View, which grounds perception in perceptual-demonstrative reference and the use of deictic tracking strategies for acquiring and updating knowledge about individuals. The view raises the problem of how sensory-motor tracking connects to epistemic and integrated forms of tracking. To study the strategies used to solve this problem, we report a study of the ability to track distal individuals when only (...) their directions can be perceived and not their locations. We introduce a new experimental paradigm named the 'Modified Traveling Salesman Problem' (MTSP), which requires subjects to visit n invisible targets in a 2D display once each. Surprisingly, subjects are competent at this task for up to 10 targets. We consider two types of tracking strategies that subjects might use: 'location-based' strategies and 'deictic direction-based' strategies. A number of observations suggest that subjects used the latter, at least for larger numbers of targets. We hypothesize that subjects used perceptual-demonstrative reference and deictic strategies (i) to perform the sensory-motor tracking of directional segments, (ii) to bind the segments with their updated status in the task, and (iii) to perform the epistemic tracking of invisible targets by means of perception-based inferences. (shrink)

In this paper I describe the place of naive realism in Russell’s changing accounts of perception. I argue ‎for the following conclusions: (1) The early period, 1898-1910: I am inclined to think that the naïve ‎realism that Russell embraced so enthusiastically early on may not have been intended as a naïve ‎realism about perception, but as a metaphysical or semantical thesis. (2) The Problems of Philosophy ‎‎(1912): Russell abandons naïve realism (if, in fact, he ever held it) and presents a (...) sense-datum version ‎of representative realism. (3) “On Matter” (1912): here we see Russell’s best attempt to defend ‎something very close to the standard doctrine of naïve realism. The objects of perception—the ‎‎“everyday material objects such as caterpillars and Cadillacs”—have, of course, undergone severe ‎reconstruction. But the resulting picture does capture the spirit of the doctrine. (4) The period from ‎‎1914 to 1927: though Russell’s thinking about perception underwent some significant changes during ‎this period—the sense datum theory is replaced by neutral monism—I try to show that the ‎distinction between the matter of physics and the thing of common sense is a constant feature of ‎Russell’s changing views. And I suggest that our perceptual relation the thing of common ‎sense (as logically reconstructed by Russell) can usefully be viewed as a limited sort of naïve realism. ‎‎(5) The period after 1927: the thing of common sense no longer features in Russell’s account of our ‎perceptual access to the world. The things we perceive are percepts, located in our private spaces. The ‎only material objects of which these percepts are parts are our brains. All other material objects are ‎beyond our perceptual reach and are accessible only via inference. This is the end of anything ‎resembling the traditional view of naïve realism in Russell’s account of perception. ‎. (shrink)

In this paper, I reconstruct the reasons why Aristotle thinks that musical education is important for moral education. Musical education teaches us to enjoy appropriately and to recognize perceptually fine melodies and rhythms. Fine melodies and rhythms are similar to the kind of movements fine actions consist in and fine characters display. By teaching us to enjoy and recognise fine melodies and rhythms, musical education can train us to recognize and to take pleasure in fine actions and characters. Thus, musical (...) education can, up to a point, lead us toward the actions and character dispositions a virtuous life requires. (shrink)

This essay reconstructs the steps by which Cassirer moved from the philosophy of language in the early 1920s to his more general theory of symbolism. The linguistic turn in philosophy overcame idealism without falling into naturalism or psychologism, but according to Cassirer proclaiming the primacy of language was one-sided. He claimed that language is but one symbolic form among many and, what is more, it is not the most fundamental kind of symbolism. The basic function of symbolism is neither “reference” (...) nor “pure signification,” but the unification of sensory phenomena in perception, a function he termed symbolic “Prägnanz.” The essay explains how Cassirer argued for a continuity of symbolic processes linking expressive perceptual qualities with scientific theory. (shrink)

The paper attempts to reconstruct some notions of Naess's semantics, and at the same time to relate them to more recent developments. On Naess's view, there is no such thing as a language in the sense of a shared structure which determines clear-cut literal meanings like Fregean Gedanken or propositions. We use words, and try to interpret each other; but there is no a priori or intuitive basis for secure and precise knowledge about language. Interpretation or understanding, as well as (...) thinking and perception, involve discrimination at higher or lower levels. There is neither a ceiling of crystal-clear propositions nor a floor of 'given' sensations or 'objective' stimuli independent of categorizations and discriminations, which might serve as a bridge for translation or interpretation between the conceptual-perceptual schemes of individuals. The notions of 'concept', 'conceptual framework', 'situation', 'situation type' and 'proposition' are defined, with some reliance on Barwise and Perry's situation semantics. Two notions of accessibility of situation types are defined; one as constructibility of the type at a given level of discrimination, i.e. in terms of objects discerned and concepts discriminated; the other as intelligibility of the type. Intelligibility entails constructibility, but not conversely. A type of situation may be constructible at some person's level of discrimination, but not coherently intelligible to him. On this basis, a logic of senses or truth-conditions for uses of expressions is developed, and a logic of interpretations of uses. The central notions of Naessian semantics are defined: ambiguity and direction of interpretation, level of discrimination and depth of intention. (shrink)

This paper reconstructs the explanation that Descartes offers about two diseases of the mind known in the seventeenth century: phrenitis and lethargy. For this aim, it is exposed, in the first place, how the Cartesian theory of mental representations give an account of the delusions and perceptual hallucinations of the madmen. Thus, Descartes's analysis of phrenitis and lethargy is presented, delving into the Cartesian theory of memory.

The article reconstructs a late ancient debate concerning a dilemma raised by Aristotle’s De anima: How can an impassive soul account for perceiving qua being affected by perceptual objects? It is argued that Alexander and Themistius developed radically different approaches which can be better understood within a larger context of the dialogue between Aristotelianism and Platonism. The debate is shown to be instructive in underlining difficulties inherent in Aristotle’s account.

This essay reconstructs the steps by which Cassirer moved from the philosophy of language in the early 1920s to his more general theory of symbolism. The linguistic turn in philosophy overcame idealism without falling into naturalism or psychologism, but according to Cassirer proclaiming the primacy of language was one-sided. He claimed that language is but one symbolic form among many and, what is more, it is not the most fundamental kind of symbolism. The basic function of symbolism is neither "reference" (...) nor "pure signification," but the unification of sensory phenomena in perception, a function he termed symbolic "Prägnanz." The essay explains how Cassirer argued for a continuity of symbolic processes linking expressive perceptual qualities with scientific theory. (shrink)

This essay reconstructs and evaluates Aristotle's argument in Nicomachean Ethics IX.9 that the happy person needs friends, in which Aristotle combines his well-known claim that friends are other selves with the claim that human perception is meta-perceptual: the perceiving subject perceives its own existence. After exploring some issues in the logic of perception, the essay argues that Aristotle's argument for the necessity of friends is invalid since perception-verbs create referentially opaque contexts in which the substitution of co-referential terms fails.

: This essay reconstructs and evaluates Aristotle’s argument in Nicomachean Ethics IX.9 that the happy person needs friends, in which Aristotle combines his well-known claim that friends are other selves with the claim that human perception is meta-perceptual: the perceiving subject perceives its own existence. After exploring some issues in the logic of perception, the essay argues that Aristotle’s argument for the necessity of friends is invalid since perception-verbs create referentially opaque contexts in which the substitution of co-referential terms (...) fails. (shrink)

In this work I reconstruct the physical and mental descriptions of perception in Aristotle. I propose to consider the thesis that αἴσθησις is a μεσότης as a description of the physiological aspect of perception, meaning that perceiving is a physical act by which the sensory apparatus homeostatically counterbalances, and thence measures, the incoming affection produced by external perceptible objects. The proposal is based on a revision of the semantics of the word mesotês in Plato, Aristotle and later Greek mathematicians. I (...) show how this interpretation fits the text, and how it solves problems that afflict the rival interpretations. I further develop a ‘non-dephysiologizing’ spiritualist reading of the additional description of perception as reception of forms without the matter. I show that Aristotle uses the expression ‘forms without matter’ to describe actually abstracted items in one’s mind rather than the way in which the form are received. In opposition to forms-in-matter, such items are causally powerless and metaphysically sterile: an F-without-matter somewhat determines the subject it is in without qualifying or identifying it as an F-subject. Thus, we have a second ‘mental’ description of perception. Further parts of the thesis are devoted to settle interpretive questions raised by controversial statements about perception found in De Anima II 5 and III 2, and to discuss the question of how the mental and physiological descriptions of perception Aristotle offers are related. My conclusion is that Aristotle’s views combines a form of quasi-dualist vitalism about powers which is nonetheless compatible with hylomorphism, and a form of epiphenomenalism with regard to perceptual events. (shrink)

One key difference between perceptual experience and thought is the distinctly sensory way perception presents things to us. Some philosophers nevertheless suggest this sensory phenomenal character does not exhaust the way things are made manifest to us in perceptual experience. Edmund Husserl maintains that there is also a significant non‐sensory side to perception's phenomenal character. We may experience, for instance, an object's facing surface in a sensory mode and, as part of the same perceptual experience, also that (...) object's out‐of‐view surface in a non‐sensory mode. To the extent that perceptual experience makes things available to us in a non‐sensory mode, Husserl calls it inadequate. Here, I reconstruct four arguments for the conclusion that perceptual experience is inadequately found in various of Husserl's writings and critically evaluated them. My aim is both to showcase the variety and sophistication of Husserl's reasons for thinking perceptual experience is inadequate and to problematize that idea. (shrink)

Contemporary epistemology has been moving away from classical foundationalism—the thesis that our empirical knowledge is grounded in perceptual beliefs we know with certainty. McGrew reexamines classical foundationalism and offers a compelling reconstruction and defense of empirical knowledge grounded in perceptual certainty. He articulates and defends a new version of foundationalism and demonstrates how it meets all the standard criticisms. The book offers substantial rebuttals of the arguments of Kuhn and Rorty and demonstrates the value of the classical (...) analytic approach to philosophy. 'Foundations' will interest philosophers of science, language, and the mind. (shrink)

Kant’s views on animals have received much attention in recent years. According to some, Kant attributed the capacity for objective perceptual awareness to non-human animals, even though he denied that they have concepts. This position is difficult to square with a conceptualist reading of Kant, according to which objective perceptual awareness requires concepts. Others take Kant’s views on animals to imply that the mental life of animals is a blooming, buzzing confusion. In this article I provide a historical (...) reconstruction of Kant’s views on animals, relating them to eighteenth-century debates on animal cognition. I reconstruct the views of Buffon and Reimarus and show that (i) both Buffon and Reimarus adopted a conceptualist position, according to which concepts structure the cognitive experience of adult humans, and (ii) that both described the mental life of animals as a blooming, buzzing confusion. Kant’s position, I argue, is virtually identical to that of Reimarus. Hence Kant’s views on animals support a conceptualist reading of Kant. The article further articulates the historical antecedents of the Kantian idea that concepts structure human cognitive experience and provides a novel account of how the ideas of similarity and difference were conceptualized in eighteenth-century debates on animal cognition. (shrink)

In preparation for examining the place of introspective evidence in scientific psychology, the chapter begins by clarifying what introspection has been supposed to show, and why some concluded that it couldn't deliver. This requires a brief excursus into the various uses to which introspection was supposed to have been put by philosophers and psychologists in the modern period, together with a summary of objections. It then reconstructs some actual uses of introspection (or related techniques, differently monikered) in the early days (...) of experimental psychology. It distinguishes broader and narrower conceptions of introspection and argues that recent critics have tended to misdescribe how introspection was supposed to work. Drawing upon the broader conception of introspection, it argues that introspective reports are ineliminable in perceptual psychology. It concludes with some examples of such ineliminable uses of introspective reports in both earlier and recent perceptual psychology. (shrink)

Two studies examined the specificity of effects of explanation on learning by prompting 3- to 6-year-old children to explain a mechanical toy and comparing what they learned about the toy’s causal and non-causal properties to children who only observed the toy, both with and without accompanying verbalization. In Study 1, children were experimentally assigned to either explain or observe the mechanical toy. In Study 2, children were classified according to whether the content of their response to an undirected prompt involved (...) explanation. Dependent measures included whether children understood the toy’s functional-mechanical relationships, remembered perceptual features of the toy, effectively reconstructed the toy, and (for Study 2) generalized the function of the toy when constructing a new one. Results demonstrate that across age groups, explanation promotes causal learning and generalization, but does not improve (and in younger children, can even impair) memory for causally-irrelevant perceptual details. (shrink)

Episodic memory (memories of the personal past) and prospecting the future (anticipating events) are often described as mental time travel (MTT). While most use this description metaphorically, we argue that episodic memory may allow for MTT in at least some robust sense. While episodic memory experiences may not allow us to literally travel through time, they do afford genuine awareness of past-perceived events. This is in contrast to an alternative view on which episodic memory experiences present past-perceived events as mere (...) intentional contents. Hence, episodic memory is a way of coming into experiential contact with, or being again aware of, what happened in the past. We argue that episodic memory experiences depend on a causal-informational link with the past events being remembered, and that, assuming direct realism about episodic memory experiences, this link suffices for genuine awareness. Since there is no such link in future prospection, a similar argument cannot be used to show that it also affords genuine awareness of future events. Constructivist views of memory might challenge the idea of memory as genuine awareness of remembered events. We explain how our view is consistent with both constructivist and anti-causalist conceptions of memory. There is still room for an interpretation of episodic memory as enabling genuine awareness of past events, even if it involves reconstruction. (shrink)

Cases of past absence involve agents noticing in retrospect that an object or property was absent, such as when one notices later that a colleague was not at a talk. In Sanskrit philosophy, such cases are introduced by Kumārila as counterexamples to the claim that knowledge of absence is perceptual, but further take on a life of their own as a topic of inquiry among Kumārila’s commentators and their Nyāya interlocutors. In this essay, I examine the Nyāya philosopher Gaṅgeśa’s (...) epistemology of past absence, according to which agents learn that a recollectable object or property was absent by inferring its past absence from failing to recall that object or property. Gaṅgeśa’s account is best appreciated against the backdrop of earlier theories and their shortcomings, and I begin by presenting historical views leading up to his. I identify two groups of views about the epistemology of past absence: recollection views, according to which cases of past absence involve agents recalling negative information; and recollection failure views, according to which cases of past absence involve agents failing to recall positive information. I reconstruct two early recollection views: a Bhāṭṭa view belonging to Uṃveka, and a competing Nyāya view belonging to Jayanta and Bhāsarvajña. I then examine Śālikanātha and Sucarita’s critiques of recollection views, following which I reconstruct a Bhāṭṭa recollection failure view belonging to Pārthasārathi. I then examine Gaṅgeśa’s critiques of Pārthasārathi’s account and the recollection failure view he constructs out of its shortcomings. (shrink)

This chapter presents an account of Merleau-Ponty’s interpretation of the body schema as an operative intentionality that is not only opposed to, but also complexly intermingled with, the representation-like grasp of the world and one’s own body, or the body image. The chapter reconstructs Merleau-Ponty’s position primarily based on his preparatory notes for his 1953 lecture ‘The Sensible World and the World of Expression’. Here, Merleau-Ponty elaborates his earlier efforts to show that the body schema is a perceptual ground (...) against which the perceived world stands out as a complex of perceptual figures. The chapter clarifies how Merleau-Ponty’s renewed interpretation of the figure-ground structure makes it possible for him to describe the relationship between body schema and perceptual (body) image as a strictly systematic phenomenon. Subsequently, the chapter shows how Merleau-Ponty understands apraxia, sleep, and perceptual orientation as examples of dedifferentiation and subtler differentiation of the body-schematic system. The last section clarifies how such body-schematic differentiating processes give rise to relatively independent superstructures of vision and symbolic cognition which constitute our body image. It, moreover, explains how, according to Merleau-Ponty, the cognitive superstructures always need to be supported by praxic operative intentionality to maintain their full sense, even though, in some cases, they have the power to compensate for praxic deficiencies. (shrink)

It is well known in contemporary Madhyamaka studies that the seventh century Indian philosopher Candrakīrti rejects the foundationalist Abhidharma epistemology. The question that is still open to debate is: Does Candrakīrti offer any alternative Madhyamaka epistemology? One possible way of addressing this question is to find out what Candrakīrti says about the nature of buddha’s epistemic processes. We know that Candrakīrti has made some puzzling remarks on that score. On the one hand, he claims buddha is the pramāṇabhūta-puruṣa (person of (...) epistemic and moral authority), sarvākārajñatājñānaṃ (omniscient, wise), pratyakṣalakṣaṇam (exclusively perceptual in characteristic) [Candrakīrti (MABh VI.214)], and claims that there are clearly four pramāṇas—epistemic warrants—direct perception (pratyakṣa), inference (anumāna), testimony (āgama) and analogy (upamāna) [Candrakīrti (Pp I.3), cf. MacDonald 2015, pp. 287–288]. On the other hand, somewhat paradoxically, Candrakīrti claims that buddhahood is an embodiment of a complete cessation of “mind and mental processes” [Candrakīrti (MABh XI.1, 155a; MAB XI.17d)] Now how are we to make sense of these two seemingly contradictory statements? Do these statements reflect any deeper conflicts within Candrakīrti’s system or is there a coherent way to interpret these statements? The Tibetan Prāsaṅgika interpreters of Candrakīrti’s Madhyamaka largely agree that there is no internal contradiction in Candrakīrti’s system, and agree there is a way to make coherent sense of these statements. Nevertheless, the Tibetans exegetes bring to the table two radically conflicting proposals to approach Candrakīrti’s Mādhyamaka; both claiming to successfully address the apparent tension arising from Candrakīrti’s statements. One proposal is made by Tsongkhapa Losang Dakpa (Tsong kha pa bLo bzang grags pa, 1357–1419), who maintains the tension can be plausibly resolved by demonstrating that Candrakīrti’s unique non-foundationalist epistemological program renders him an epistemological coherentist. In contrast Taktsang Lotsawa Sherap Rinchen (sTag tshang Lo tsā ba Shes rab rin chen, 1405–1477) argues that according to Candrakīrti buddha is a global agnostic, on the ground of the nonexistence of mind and mental processes for those who have attained fully awakening. Taktsang instead proposes the no-mind thesis as a more plausible way to resolve the tension in Candrakīrti’s philosophy, categorically refusing to attribute to buddha any cognitive processes and epistemic warrants. This paper is an analysis of Taktsang’s no-mind thesis—the claim that buddhas utterly lack any knowledge of the world because they do not have epistemic processes and warrants to perceive the world—in what follows a rational reconstruction of his arguments is developed in order to evaluate his thesis. We shall then assess the implications of accepting Taktsang’s no-mind thesis. (shrink)

Some recent surveys of the modern philosophical debate over the existence of non-conceptual perceptual content have concluded that the distinction between conceptual and non-conceptual representations is largely terminological. To remedy this terminological impasse, Robert Hanna and Monima Chadha claim that non-conceptualists must defend an essentialist view of non-conceptual content, according to which perceptual states have representational content whose structure and psychological function are necessarily distinct from that of conceptual states. Hanna and Chadha additionally suggest that non-conceptualists should go (...) “back to Kant” to find the most defensible version of an essentialist content non-conceptualism. I propose instead that non-conceptualists go back even further to the seventh-century Indian Buddhist philosopher Dharmakīrti, so that they may not only find historical precedent for an essentialist content view, but also some better arguments in its favor. This essay reconstructs Dharmakīrti's essentialist non-conceptualism about the contents of conscious sensory representations and the refined theory of conceptualization that it presupposes. In particular, I examine his arguments from the proprietary phenomenology of sensory experience, the cognitive encapsulation of sensory processing, as well as the iconic format of sensory representations, and assess the strength of these arguments relative to their modern counterparts. (shrink)

A persisting question in the philosophy of animal minds is which nonhuman animals share our capacity for episodic memory. Many authors address this question by primarily defining EM, trying to capture its seemingly unconstrained flexibility and independence from environmental and bodily constraints. EM is therefore often opposed to clearly context-bound capacities like tracking environmental regularities and forming associations. The problem is that conceptualizing EM in humans first, and then reconstructing how humans evolved this capacity, provides little constraints for understanding the (...) evolution of memory abilities in other species: it defines “genuine” EM as independent from animals’ evolved sensorimotor setup and learning abilities. In this paper, I define memory in terms of perceptual learning: remembering means “knowing what to do in later situations because of past experience in similar earlier situations”. After that, I explain how episodic memory can likewise be explained in terms of perceptual learning. For this, we should consider that the information in animals’ ecological niches is much richer than has hitherto been presumed. Accordingly, instead of asking “given that environmental stimuli provide insufficient information about the cache, what kind of representation does the jay need?” we ask “given that the animal performs in this way, what kind of information is available in the environment?” My aim is not to give a complete alternative explanation of EM; rather, it is to provide conceptual and methodological tools for more zoocentric comparative EM-research. (shrink)

In this paper I present and assess a controversy between Edmund Husserl and Heinrich Rickert on the nature of judgment, in order to bring to light the originality of Husserl's proposal concerning this important issue. In the first section I provide some context for Rickert's theory of judgment by sketching a reconstruction of nineteenth century logical theory and then proceed to introduce Rickert's view. I suggest that nineteenth century logic is characterized by a criticism of the traditional view that (...) sees categorial judgment as the essential form of judgment and the uniting and separating of ideas as sufficient for the constitution of a judgment. Hume inaugurates this criticism, but it finds its most mature expression in the work of Lotze, Brentano, and Rickert. Rickert, in particular, sees simple affirmation and negation of the transcendent value of truth as the essence of judgment. In the second section I present Husserl's criticism of Rickert. Husserl's criticism revolves around the distinction between simple judgments and the higher-order affirmative or negative stance we can adopt with respect to previously articulated simple judgments. Simple judgments register the mereological relation holding among something and one of its properties, and they do not entail an affirmative or negative stance. Their function is to constitute states of affairs drawing on concrete perceptual situations. Higher-order affirmation or negation occurs when we set out to revisit a foregoing simple judgment in order to confirm or disconfirm the veridicality of its proposed state of affairs. In the third part I suggest a diagnosis of the origin of the mistake in earlier theories. Simple judgments are easy to conflate with non-simple, higher-order judgmental stances because they have the same logical value and they cannot be seen without the aid of genuinely phenomenological reflection. In conclusion, I suggest that Husserl's analysis amounts to a vindication of categorial judgment in its traditional form ‘S is P’, which continues to maintain a phenomenological legitimacy even in the wake of Frege's canonical dismissal of subject and predicate. (shrink)