An impressive review of brain neurophysiology provides the basis for modelling the dynamics of transmission in neural circuits, using appropriate nonlinear mathematics. The coverage is unbalanced, however: the parallel dynamics at the level of behaviour and sensory-cognitive processes are sparsely addressed, so the final chapter fails to indicate the complexity and subtlety of relevant modern work.

In the 19th century, "Psychophysical Parallelism" was the most popular solution of the mind-body problem among physiologists, psychologists and philosophers. (This is not to be mixed up with Leibnizian and other cases of "Cartesian" parallelism.) The fate of this non-Cartesian view, as founded by Gustav Theodor Fechner, is reviewed. It is shown that Feigl's "identity theory" eventually goes back to Alois Riehl who promoted a hybrid version of psychophysical parallelism and Kantian mind-body theory which was (...) taken up by Feigl's teacher Moritz Schlick. (shrink)

The thesis, typical among dualists, that there are no necessitation relations between events of consciousness and physical events implies that it is prima facie lucky that in our world the apparently existing psychophysical laws usually match events of consciousness and physical events in a “harmonious” way. The lucky psychophysical laws argument concludes that typical dualism amounts to a psychophysical parallelism that is prima facie too improbable to be true. I argue that an anthropic reasoning in the (...) space of possible worlds makes the appearance of a harmonious match situation unsurprising, and that this is all that is needed for the argument to be harmless to a typical dualist. (shrink)

Mind-body parallelism is the view that mind and body stand in the same “order and connection,” as Spinoza put it, or that corresponding mental and physical states have corresponding causal explanations in terms of other mental and physical states. This dissertation investigates the nature and role of mind-body parallelism, as well as other forms of parallelism, in Spinoza’s philosophy of mind. In doing so, it also considers how Spinoza’s views relate to current discussions. In present-day philosophy of (...) mind, mind-body parallelism is almost never defended. It is seen as a historical dead-end with insurmountable problems. By contrast, I argue that parallelism powerfully responds to the post-Cartesian mind-body problem (which remains with us today) and that it points a way forward in current debates. The dissertation contains five independent chapters. After an introduction that situates parallelism in relation to both Spinoza’s time and to present discussions, Chapter 1 presents an argument for parallelism aimed at a present-day audience. Chapter 2 discusses Spinoza’s own arguments for parallelism. Both chapters help to clarify what parallelism is, in part by distinguishing between several versions of the view. Chapter 3 discusses what is often considered parallelism’s most problematic feature, its rejection of mind-body interaction. I argue that by distinguishing between the post-Cartesian context in which Spinoza wrote and present-day discussions, we can see that parallelism is compatible with mental causation. Chapters 4 and 5, finally, discuss specific ways in which parallelism is at work in Spinoza’s view of the mind. In Chapter 4, I argue that parallelism is at work in Spinoza’s interesting and distinctive positions on the nature of agency and motivation. In Chapter 5, I show the role of parallelism in his representationalist theory of consciousness. A guiding thread throughout the dissertation is that parallelism presents a distinctive and interesting way to combine realism, non-reductionism and naturalism in relation to those features of human self-understanding that seem difficult to fit into a naturalistic worldview. (shrink)

Wittgenstein refers to psychophysical parallelism in this apparently prejudiced way in paragraph 611 of Zettel , in the course of a rather remarkable passage. It begins at 605 with the claim that ‘One of the most dangerous ideas for a philosopher is, oddly enough, that we think with our heads or in our heads’. Subsequent sections develop this remark in a way that demonstrates Wittgenstein's rejection of the view that thinking is any sort of process in the head, (...) whether a physiological process or a matter of the operations of ‘a nebulous mental entity’. Indeed he appears to consider that these ontologically opposed alternatives have a common source, in that they both derive from the mistaken view that there must be a mediating process between psychological phenomena such as my present remembering and my experience of the remembered event . If we find no suitable mediating physiological process, we are easily led to assume that there must be a process of a rather different sort, and hence we are led to believe in a ‘nebulous mental entity’. But this whole line of thought in fact depends on a ‘primitive interpretation of our concepts’, an interpretation which we uncritically made at the stage at which we assumed that there must be a process of some sort mediating between the phenomena. We are reminded of Wittgenstein's earlier remarks in Philosophical Investigations , I, 308. (shrink)

Wittgenstein refers to psychophysical parallelism in this apparently prejudiced way in paragraph 611 of Zettel, in the course of a rather remarkable passage. It begins at 605 with the claim that ‘One of the most dangerous ideas for a philosopher is, oddly enough, that we think with our heads or in our heads’. Subsequent sections develop this remark in a way that demonstrates Wittgenstein's rejection of the view that thinking is any sort of process in the head, whether (...) a physiological process or a matter of the operations of ‘a nebulous mental entity’. Indeed he appears to consider that these ontologically opposed alternatives have a common source, in that they both derive from the mistaken view that there must be a mediating process between psychological phenomena such as my present remembering and my experience of the remembered event. If we find no suitable mediating physiological process, we are easily led to assume that there must be a process of a rather different sort, and hence we are led to believe in a ‘nebulous mental entity’. But this whole line of thought in fact depends on a ‘primitive interpretation of our concepts’, an interpretation which we uncritically made at the stage at which we assumed that there must be a process of some sort mediating between the phenomena. We are reminded of Wittgenstein's earlier remarks in Philosophical Investigations, I, 308. (shrink)

Spinoza breaks with Descartes’ conception of the psychophysical union and deeply changes the ontological statute of men. He considers no longer that human beings in Nature are a dominion within a dominion and share with God the privilege of being substances. In Descartes, the union of an immaterial or non‐extended substance and a material or extended substance remains beyond understanding, since the problem of whether they are able to interact arises. By identifying the mind to the idea of the (...) body, the author of the Ethics provides guidance on how to conceptualize their relationship. The psychophysical parallelism fails to explain both identity and differences in Spinoza. It presupposes homologies and one‐to‐one correspondences between ideas and things, mind and body, and leads to conceptualizing the various modal expressions according to a linearly identical model. The psychophysical union in Spinoza sounds like a duet that puts an end to duality without reducing it to a mechanical identity. (shrink)

The PhD dissertation defended by Ion Petrovici in 1905 triggered criticism related to its sources, method and aim. Although the author made use of the term ‘psychophysical parallelism’ in the title – the critics reproached –, the work had nothing to do with scientific psychology. The following paper discusses the distinction between psychophysical parallelism as description and psychophysical parallelism as solution to the mind–body problem. Only the former can be considered a proper scien­tific approach.

Interpretations of Aristotle's account of the relation between body and soul have been widely divergent. At one extreme, Thomas Slakey has said that in the De Anima ‘Aristotle tries to explain perception simply as an event in the sense-organs’. Wallace Matson has generalized the point. Of the Greeks in general he says, ‘Mind–body identity was taken for granted.… Indeed, in the whole classical corpus there exists no denial of the view that sensing is a bodily process throughout’. At the opposite (...) extreme, Friedrich Solmsen has said of Aristotle's theory, ‘it is doubtful whether the movement or the actualization occurring when the eye sees or the ear hears has any physical or physiological aspect.’ Similarly, Jonathan Barnes has described Aristotle as leaning hesitantly towards the view that desire and thought are wholly non-physical. But on the emotions and sense-perception, Barnes takes an intermediate position. Aristotle treats these, he says, as including physical and non-physical components. Other writers too have sought a position somewhere in the middle. Thus G. R. T. Ross concedes that we find in Aristotle ‘what looks like the crudest materialism’. It appears that objects produce changes in an organism, ‘and the reception of these changes in the sense organ is perception’. But, he maintains, this gives us only half the picture. The complete theory ‘may in a way be designated as a doctrine of psychophysical parallelism’. W. D. Ross also seeks a middle position. He thinks that Aristotle sometimes brings out ‘the distinctively mental, non-corporeal nature of the act [of sensation].… But Aristotle cannot be said to hold successfully to the notion of sensation as a purely mental activity having nothing in common with anything physical. He is still under the influence of earlier materialism’. (shrink)

A serious crisis is identified in theories of neurocomputation, marked by a persistent disparity between the phenomenological or experiential account of visual perception and the neurophysiological level of description of the visual system. In particular, conventional concepts of neural processing offer no explanation for the holistic global aspects of perception identified by Gestalt theory. The problem is paradigmatic and can be traced to contemporary concepts of the functional role of the neural cell, known as the Neuron Doctrine. In the absence (...) of an alternative neurophysiologically plausible model, I propose a perceptual modeling approach, to model the percept as experienced subjectively, rather than modeling the objective neurophysiological state of the visual system that supposedly subserves that experience. A Gestalt Bubble model is presented to demonstrate how the elusive Gestalt principles of emergence, reification, and invariance can be expressed in a quantitative model of the subjective experience of visual consciousness. That model in turn reveals a unique computational strategy underlying visual processing, which is unlike any algorithm devised by man, and certainly unlike the atomistic feed-forward model of neurocomputation offered by the Neuron Doctrine paradigm. The perceptual modeling approach reveals the primary function of perception as that of generating a fully spatial virtual-reality replica of the external world in an internal representation. The common objections to this picture-in-the-head concept of perceptual representation are shown to be ill founded. Key Words: brain-anchored; Cartesian theatre; consciousness; emergence; extrinsic constraints; filling-in; Gestalt; homunculus; indirect realism; intrinsic constraints; invariance; isomorphism; multistability; objective phenomenology; perceptual modeling; perspective; phenomenology; psychophysical parallelism; psychophysical postulate; qualia; reification; representationalism; structural coherence. (shrink)

Interpretations of Aristotle's account of the relation between body and soul have been widely divergent. At one extreme, Thomas Slakey has said that in theDe Anima‘Aristotle tries to explain perception simply as an event in the sense-organs’. Wallace Matson has generalized the point. Of the Greeks in general he says, ‘Mind–body identity was taken for granted.… Indeed, in the whole classical corpus there exists no denial of the view that sensing is a bodily process throughout’. At the opposite extreme, Friedrich (...) Solmsen has said of Aristotle's theory, ‘it is doubtful whether the movement or the actualization occurring when the eye sees or the ear hears has any physical or physiological aspect.’ Similarly, Jonathan Barnes has described Aristotle as leaning hesitantly towards the view that desire and thought are wholly non-physical. But on the emotions and sense-perception, Barnes takes an intermediate position. Aristotle treats these, he says, as including physical and non-physical components. Other writers too have sought a position somewhere in the middle. Thus G. R. T. Ross concedes that we find in Aristotle ‘what looks like the crudest materialism’. It appears that objects produce changes in an organism, ‘and the reception of these changes in the sense organisperception’. But, he maintains, this gives us only half the picture. The complete theory ‘may in a way be designated as a doctrine of psychophysical parallelism’. W. D. Ross also seeks a middle position. He thinks that Aristotle sometimes brings out ‘the distinctively mental, non-corporeal nature of the act [of sensation].… But Aristotle cannot be said to hold successfully to the notion of sensation as a purely mental activity having nothing in common with anything physical. He is still under the influence of earlier materialism’. (shrink)

This study aims to show a similarity of Kant’s and Jung’s approaches to an issue of the possibility of scientific psychology, hence to explicate what they thought about the future of psychology. Therefore, the article contains heuristic material, which can contribute in a resolving of such methodological task as searching of promising directions to improve philosophical and scientific psychology. To achieve the aim the author attempts to clarify an entity of Kant’s and Jung’s objections against even the possibility of scientific (...) psychology and to find out ways to overcome those objections in Kant’s and Jung’s works. The main methods were explication, reconstruction and comparative analysis of Kant’s and Jung’s views. As a result it was found, that Kant and Jung allocated one and the same obstacles, which, on their opinion, prevent psychology to become a science in the strict sense. They are: 1) coincidence of subject and object in psychology; 2) impossibility to apply quantitative mathematic methods in psychology; 3) pendency of the issue of psychophysical parallelism. However, Kant and Jung indicated ways to resolve formulated by them fundamental difficulties. All those ways lay through the searching a principle of interaction and connection between the psychic and the physical. (shrink)

D. Dieks has proposed a semantical rule which he claims yields a realistic interpretation of the formalism of quantum mechanics without the projection postulate. I argue that his proposal is unacceptable because it violates a natural requirement of psychophysical parallelism. His "semantical rule" is not an acceptable interpretive rule because it does not identify structures in the theory with structures in our experience, but postulates a merely probabilistic relationship between the two. Dieks' interpretation is contrasted with Everett's relative (...) state interpretation, which attempts the same task but respects psychophysical parallelism. (shrink)

This thesis develops a detailed account of the emergence of for all practical purposes continuous, quasi-classical world histories from the discontinuous, stochastic micro dynamics of Minimal Bohmian Mechanics (MBM). MBM is a non-relativistic quantum theory. It results from excising the guiding equation from standard Bohmian Mechanics (BM) and reinterpreting the quantum equilibrium hypothesis as a stochastic guidance law for the random actualization of configurations of Bohmian particles. On MBM, there are no continuous trajectories linking up individual configurations. Instead, individual configurations (...) are actualized independently of each other, carving out the decoherence-induced branching structure of the universal wave function. Yet, by contrast to the Everett interpretation, branches of the universal wave function are not actualized in parallel, i.e. all at the same time. Rather, world branches, on MBM, are actualized sequentially. -/- For an introduction to MBM, the transition from BM to MBM is described, and their empirical equivalence is established. I present the conditions under which MBM can be classified as a primitive ontology (PO) theory, regarded as crucial for the acceptance of a theory as Bohmian by many proponents of BM. While rendering MBM compatible with the PO approach, it must not fall prey to the problem of communication, arising from the two-space reading of BM. -/- The issue of temporal solipsism, identified by Bell as a serious problem for his “Everett (?) theory” – the historic predecessor of MBM – is discussed. I argue that Barbour’s time capsule approach does not provide a satisfactory solution. In particular, his adopting a more than minimal psychophysical parallelism between brain processes and experience of macroscopic change is argued to be reasonable in light of our current best neuroscience, yet problematic for theories relying solely on time capsules, understood as highly structured, individual, internally static configurations. As a solution, I introduce worlds, and world histories, as key concepts in providing a link between MBM’s micro dynamics and macroscopic phenomena. Worlds, other than time capsules, are coarse-grained regions in phase- or configuration space, defined as sets of possible micro states satisfying a relation of sufficient similarity from a macroscopic perspective, with respect to a given micro state. Hence, worlds may overlap. -/- I argue that worlds thus construed are a reasonable option for replacing the disjoint macro regions of phase space, resulting from the usual way of partitioning phase space in the standard framework of Boltzmannian statistical mechanics. This move solves the issue of discontinuous change of macro variables upon the micro state crossing the boundary between different macro regions. -/- I adapt this move for MBM’s discontinuous micro dynamics in configuration space. Issues revolving around the microscopic-macroscopic distinction, particle identity, impenetrability and haecceity in light of the desideratum of particle number conservation, etc., are discussed. I provide a detailed explanation of how overlapping worlds in MBM form world histories, thereby linking up macroscopically distinct worlds. Thus, the problem of temporal solipsism is resolved in a way that is compatible with a more than minimal psychophysical parallelism. (shrink)

With reference to recently proposed theoretical models accounting for reduction in terms of a unified dynamics governing all physical processes, we analyze the problem of working out a worldview accommodating our knowledge about natural phenomena. We stress the relevant conceptual differences between the considered models and standard quantum mechanics. In spite of the fact that both theories describe systems within a genuine Hilbert space framework, the peculiar features of the spontaneous reduction models limit drastically the states which are dynamically stable. (...) This fact by itself allows one to work out an interpretation of the formalism which makes it possible to give a satisfactory description of the world in terms of the values taken by an appropriately defined mass density function in ordinary configuration space. A topology based on this function and which is radically different from the one characterizing the Hilbert space is introduced, and in terms of it the idea of similarity of macroscopic situations is precisely defined. Finally, the formalism and the interpretation are shown to yield a natural criterion for establishing the psychophysical parallelism. The conclusion is that, within the considered theories and at the nonrelativistic level, one can satisfy all sensible requirements for a completely satisfactory macro-objective description of reality. (shrink)

In this paper we argue for the robustness of Leibniz's commitment to the reality (but not substantiality) of body. We claim that a number of his most important metaphysical doctrines — among them, psychophysical parallelism, the harmony between efficient and final causes, the connection of all things, and the argument for the plurality of substances stemming from his solution to the continuum problem— make no sense if he is interpreted as giving an eliminative reduction of bodies to perceptions.

This article is about the exchanges between Leibniz, Arnauld, Bayle and Lamy on the subject of pain. The inability of Leibniz’s system to account for the phenomenon of pain is a recurring objection of Leibniz’s seventeenth-century Cartesian readers to his hypothesis of pre-established harmony: according to them, the spontaneity of the soul and its representative nature cannot account for the affective component of pain. Strikingly enough, this problem has almost never been addressed in Leibniz studies, or only incidentally, through the (...) more general problem of evil. My purpose in this article is to clarify Leibniz’s psychophysical parallelism by opposing his representationist account of pain to the functionalist account endorsed by Arnauld, Bayle, Lamy and Malebranche. (shrink)

At the beginning of the 20th century, Gestalt psychologists put forward the concept of psychoneural isomorphism, which was meant to replace Fechner’s obscure notion of psychophysical parallelism and provide a heuristics that may facilitate the search for the neural correlates of the mind. However, the concept has generated much confusion in the debate, and today its role is still unclear. In this contribution, I will attempt a little conceptual spadework in clarifying the concept of psychoneural isomorphism, focusing exclusively (...) on conscious visual perceptual experience and its neural correlates. Firstly, I will outline the history of our concept, and its alleged metaphysical and epistemic roles. Then, I will clarify the nature of isomorphism and rule out its metaphysical role. Finally, I will review some epistemic roles of our concept, zooming in on the work of Jean Petitot, and suggest that it does not play a relevant heuristic role. I conclude suggesting that psychoneural isomorphism might be an indicator of robustness for certain mathematical descriptions of perceptual content. (shrink)

Researchers often talk about a powerful heuristic potential of the Kantian heritage, but sometimes they do not show concrete examples in defense of this opinion outside Kantianism and Neo- Kantianism. This article contains an attempt to demonstrate that on the example of how efficiently C.G. Jung used Kant’s ideas to construct the theoretical basis of analytical psychology in general and his conception of archetypes in particular, we can see the urgency of Kant’s heritage not only for his direct spiritual successors. (...) In addition the question is discussed: why did Jung claim that epistemologically he took his stand on Kant? (shrink)

Descartes argued that the passions of the soul were immediately felt in the body, as the animal spirits, affected by the movement of the pineal gland, spread through the body. In Leibniz the effect of emotions in the body is a different question as he did not allow the direct interaction between the mind and the body, although maintaining a psychophysical parallelism between them. -/- In general, he avoids discussing emotions in bodily terms, saying that general inclinations, passions, (...) pleasures and pains belong only to the mind or to the soul (NE II, xxi, §72). He is also keen to point out that our passions derive mostly from our bodies. However, like Spinoza (Ethics III, prop. XI, Scholium) he thought that some emotions such as joy can produce pleasures which can be described also in bodily terms. For example, in a short memoir Felicity he says that music can be a pleasure for the ears and symmetry can be a pleasure for the eyes. These more intellectual emotions are actions in the sense that they represent perfection emanating from their source, the absolutely perfect being, that is, God. The feeling of perfection may produce a state of well-being which concerns both the soul and the body. -/- In my paper I will trace instances of Leibniz’s remarks on how these kind of emotions affect the body. I will also discuss the different ways the body gives rise to passions in the soul. My primary source is Nouveaux essais, book II, chapter xx and xxi, but I will also discuss various other writings by Leibniz. (shrink)

Abstract. The neutral monism suggested by Constantin Rădulescu-Motru was a theoretical frame intended to match the general idea of Kant’s apriorism with the results reached by physics and psychology at the beginning of the 20th Key words: transcendental aesthetic; consciousness in general; empirical consciousness; psychophysical parallelism; phenomenal ontology; scientistic ontology.

In this essay I analyse Wittgenstein’s criticism of several assumptions that are crucial for a large part of cognitive science. These involve the concepts of computational processes in the brain which cause mental states and processes, the algorithmic processing of information in the brain , the brain as a machine, psychophysical parallelism, the thinking machine, as well as the confusion of rule following with behaviour in accordance with the rule. In my opinion, the theorists of cognitive science have (...) not yet seriously considered Wittgenstein’s criticism so they, quite surprisingly, frequently confuse the question “how does it work?” with “what does it do?” But their most “deleterious” mistake is their confusion of the internal computational processes taking place in the brain with socially-based, everyday criteria of recognition and classification of, and knowledge about, the content of mental states. (shrink)

The mind-body relation or, more particularly, the mind-brain relation 1 has been a perennial puzzle for philosophers—how can things so different be intimately related? Husserl dealt with the mind-brain relation in Section 63 of Ideen II, “Psychophysischer Parallelismus and Wechselwirkung,” 2 where he gave a critique of psychophysical parallelism. For Husserl, the mind-brain relation is to be understood not as a material or metaphysical relation, but as a relation between the presented sense or significance of two varieties of (...) appearances. Husserl’s account in this section will be examined and the following points will be discussed: (1) Husserl’s argument that the significance of brain states is basic to the full sense of a mind operating in an objective world; (2) Husserl’s view that a strict parallelism between the psyche and brain is an eidetic impossibility; (3) Husserl’s treatment of these questions, in so far as he raises but does not adequately resolve the issue, whether states of consciousness precede or follow brain states; (4) Husserl’s somewhat Cartesian failure to distinguish the phenomenological priority of consciousness from the metaphysical question of the possibility of an existent mind apart from a body. (shrink)

This essay is dominated by three themes that recur contrapuntally in Heisenberg’s writings: observation, description, and ontology—prompted always by a concern about the role played by the subjective inquirer in scientific meaning-making, and by the ontology of scientific claims. Among the related themes are; the tension between paradigmatic concerns with structure and philosophical concerns with reality, the possibility of scientific revolutions, such as relativity and quantum mechanics, that can overthrow the classical traditions of natural science and the inadequacy of a (...) psychophysical parallelism for an epistemology of reason. The influence of Husserl and Heidegger is in his neokantian concern about the role of subjectivity. Heisenberg was a long-time friend of Heidegger and familiar with Heidegger’s hermeneutical phenomenology and its critique of Greek philosophy; he also contributed an essay to a Festschrift in Heidegger’s honor in 1959. (shrink)

The contribution argues that causal interpretations of empirical correlations between neural and conscious events are meaningful even if not fully verifiable and that there are reasons in favour of an epiphenomenalist construction of psychophysical causality. It is suggested that an account of causality can be given that makes interactionism, epiphenomenalism and Leibnizian parallelism semantically distinct interpretations of the phenomena. Though neuroscience cannot strictly prove or rule out any one of these interpretations it can be argued that methodological principles (...) favour a causal interpretation on epiphenomenalist lines, both for reasons of metaphysical parsimony and for reasons of coherence with established physical principles such as the conservation of energy. In the concluding chapter, some of the philosophical and the empirical challenges following from this model are outlined, the most important being closer scrutiny of the neurophysiological processes accompanying conscious volition. (shrink)

The paper deals with the approach to the so called psychophysical unity as deve_loped by the Slovak philosopher Svätopluk Štúr in the 1940s. The approach is examined in the context of current conceptions of psychophysical reductionism, parallelism and interactionalism. The author shows S. Štúr as indicating the possible resolution in his philosophy of the "organic whole".

In his Spinozastudien Stumpf dismisses the commonplace interpretation of Spinoza’s parallelism in psychophysical terms. Rather, he suggests to read Ethics, II, Prop. 7, as the heritage of the scholastic doctrine of intentionality. Accordingly, things are the intentional objects of God’s ideas. On this basis, Stumpf also tries to make sense of the puzzling spinozian doctrine of the infinity of God’s attributes. In support of this exegesis, Stumpf offers an interesting reconstruction of the history of intentionality from Plato and (...) Aristotle to the late Scholastics. Besides its intrinsic value, Stumpf’s confrontation with Spinoza is illuminating in explaining his own position concerning a crucial phenomenological question such as intentionality. Actually, Stumpf avoids defining the mental in terms of intentionality and maintains, rather, a moderate but professed dualistic position, thus deeply diverging from both Brentano and Husserl. (shrink)

This paper develops a new argument from consciousness to theism: the argument from psychophysical harmony. Roughly, psychophysical harmony consists in the fact that phenomenal states are correlated with physical states and with one another in strikingly fortunate ways. For example, phenomenal states are correlated with behavior and functioning that is justified or rationalized by those very phenomenal states, and phenomenal states are correlated with verbal reports and judgments that are made true by those very phenomenal states. We argue (...) that psychophysical harmony is strong evidence for theism (or, at least, strong evidence against atheism in its standard naturalistic form). (shrink)

While introspective methods went out of favour with the decline of Titchener’s analytic school, many important questions concern the rehabilitation of introspection in contemporary psychology. Hatfield rightly points out that introspective methods should not be confused with analytic ones, and goes on to describe their “ineliminable role” in perceptual psychology. Here I argue that certain methodological conventions within psychophysics reflect a continued uncertainty over appropriate use of subjects’ perceptual observations and the reliability of their introspective judgements. My first claim is (...) that different psychophysical methods do not rely equally on the introspective capabilities of experimental subjects. I contrast “minimally-introspective” tasks with “introspection-heavy” ones. It is only in the latter, I argue, that introspection can be said to have a non-trivial role in the subjects’ performance. My second claim is that my rough-and-ready distinction maps onto a number of important “dichotomies” in vision science. Not coincidentally, the introspection-heavy categorisation captures many of the tasks typically considered less able to yield useful information regarding the processes underlying visual sensation. (shrink)

Psychophysical scaling models of the form R = f, with R the response and I some intensity of an attribute, all assume that people judge the amounts of an attribute. With simple biases excepted, most also assume that judgments are independent of space, time, and features of the situation other than the one being judged. Many data support these ideas: Magnitude estimations of brightness increase with luminance. Nevertheless, I argue that the general model is wrong. The stabilized retinal image (...) literature shows that nothing is seen if light does not change over time. The classification literature shows that dimensions often combine to produce emergent properties that cannot be described by the elements in the stimulus. These and other effects cannot be adjusted for by simply adding variables to the general model because some factors do not combine linearly. The proposed alternative is that people initially judge the entire stimulus – the object in terms of its environment. This agrees with the constancy literature that shows that objects and their attributes are identified through their relations to other aspects of the scene. That the environment determines judgments is masked in scaling studies where the standard procedure is to hold context constant. In a typical brightness study the essential stimulus might be the intensity of the light or a difference between the light and the background. The two are perfectly confounded. This issue is examined in the case of audition. Judgments of the loudness of a tone depend on how much that tone differs from the previous tone in both pitch and loudness. To judge loudness people first seem to process the stimulus object in terms of differences between it and other aspects in the situation; only then do they assess the feature of interest. Psychophysical judgments will therefore be better interpreted by theories of attention that are based in biology or psychology than those that are based in classical physics. (shrink)

We studied two otherwise normal, synaesthetic subjects who `saw' a speci¢c colour every time they saw a speci¢c number or letter. We conducted four experiments in order to show that this was a genuine perceptual experience rather than merely a memory association. (i)The synaesthetically induced colours could lead to perceptual grouping, even though the inducing numerals or letters did not. (ii)Synaesthetically induced colours were not experienced if the graphemes were presented peripherally. (iii)Roman numerals were ine¡ective: the actual number grapheme was (...) required. (iv)If two graphemes were alternated the induced colours were also seen in alternation. However, colours were no longer experienced if the graphemes were alternated at more than 4 Hz. We propose that grapheme colour synaesthesia arises from `cross-wiring' between the `colour centre' (area V4 or V8)and the `number area', both of which lie in the fusiform gyrus. We also suggest a similar explanation for the representation of metaphors in the brain: hence, the higher incidence of synaesthesia among artists and poets. (shrink)

In Fechner's psychophysics, the 'mental' and the 'physical' were conceived as two phenomenal domains, connected by functional relations, not as two ontologically different realms. We follow the path from Fechner's foundational ideas and Mach's radical programme of a unitary science to later approaches to primary, psychophysically neutral experience (phenomenology, protophysics). We propose an 'integral psychophysics' as a mathematical study of law-like, invariant structures of primary experience. This approach is illustrated by a reinterpretation of psychophysical experiments in terms of perceptual (...) situations involving a constructed apparatus and an instructed subject. The problematic notion of 'measurement of sensation' is thus eliminated: 'sensations' are merely indices for classes of perceptually equivalent configurations (states of the apparatus) specified by the instruction. The locus of the measured is in the inter-subjectively shared, communicable world—not inside the subject's mind. Finally we discuss the role of integral psychophysics as a scientia prima , logically and methodically preceding physics and psychology. (shrink)

One may gather from the arguments of two of the last papers published before his death that J. L. Mackie held the following three theses concerning the mind/body problem : (1) There is a distinct realm of mental properties, so a dualism of properties at least is true and materialism false.

Psychologically faithful deep neural networks (DNNs) could be constructed by training with psychophysics data. Moreover, conventional DNNs are mostly monocular vision based, whereas the human brain relies mainly on binocular vision. DNNs developed as smaller vision agent networks associated with fundamental and less intelligent visual activities, can be combined to simulate more intelligent visual activities done by the biological brain.

In past and modern psychophysics there are several unresolved methodological and philosophical problems of human and animal perception, including the outstanding question of the relational basis of whole psychophysics. Here the main issue is discussed: if, and to what extent, there are viable bridges between the traditional “gestalt” oriented approaches and the modern perceptual-cognitive perspectives in psychophysics. Thereby the key concept of psychological “frame of reference” is presented by pointing to Hermann Ebbinghaus' geometric-optical illusions, on the one hand, and Max (...) Wertheimer's treatment of the traditional transposition phenomenon, on the other hand. A much-needed theoretical reorientation of future research may help to overcome the philosophical narrowness of present-day human and comparative psychophysics. (shrink)

Normative theories of media functions require a clear distinction between the media's two roles as forum and speaker in public spheres. This article seeks to study potential violations of the rule of separating fact from opinion. The comparative content analysis takes a European political conflict, the so-called Haider debate, as a litmus test of objectivity of news reporting. The study reveals some critical consequences of the press' political involvement in the debate. In all countries under study, the press tends to (...) incorporate journalistic evaluations into the news. The Haider debate was characterized by a ‘political parallelism’ of the press in a manner which Hallin and Mancini re-defined as ‘party-press parallelism’. The newspapers favorably gave voice to speakers supporting their own positions, thus instrumentalizing opportune witnesses. As a result, the newspapers ‘synchronized’ the coverage with their editorial stances, which lead to biased news reporting in all outlets. (shrink)