Perceptual Qualities

Both philosophers of perception and analytic metaphysicians apply the tropes/universals distinction when considering the ontological status of visual properties. One way of arguing in favor of the trope interpretation of visual properties is to claim that the way in which we visually experience properties makes it plausible to characterize them as tropes. In this paper, I argue for a different position, namely that the way in which we visually experience properties provides a serious challenge for the trope interpretation, but not (...) for an interpretation in terms of universals. More specifically, I claim that the trope interpretations of visual properties have problems accounting for the fact that ordinary, veridical visual experiences can present the properties of two objects as strictly similar. (shrink)

Judgments of visual resemblance (‘A looks like B’), unlike other judgments of resemblance, are often induced directly by visual experience. What is the nature of this experience? We argue that the visual experience that prompts a subject looking at A to judge that A looks like B is a visual experience of B. After elucidating this thesis, we defend it, using the ‘phenomenal contrast’ method. Comparing our account to competing accounts, we show that the phenomenal contrast between a visual experience (...) that induces the judgment that A looks like B, and a visual experience that does not induce this judgment, is best explained by the fact that the former visually represents B, whereas the latter does not. (shrink)

Do we remember what pain feels like? Investigations into this question have sometimes led to ambiguous or apparently contradictory results. Building on research on pain memory by Rohini Terry and colleagues, I argue that this lack of agreement may be due in part to the difficulty researchers face when trying to convey to their study's participants the type of memory they are being tasked with recalling. To address this difficulty, I introduce the concept of 'qualitative memory', which, arguably, is the (...) sort of memory we have of what red looks like yet lack with respect to pain. I also briefly address a number of consequences the acknowledgment of qualitative memory would potentially have for philosophy, arguing that if we fail to have qualitative memories of certain sensations, such as pain, the standard philosophical accounts of experience, rational choice, and the sources of moral action may all need revision. (shrink)

This volume focuses on philosophical problems concerning sense perception in the history of philosophy. It consists of thirteen essays that analyse the philosophical tradition originating in Aristotle’s writings. Each essay tackles a particular problem that tests the limits of Aristotle’s theory of perception and develops it in new directions. The problems discussed range from simultaneous perception to causality in perception, from the representational nature of sense-objects to the role of conscious attention, and from the physical/mental divide to perception as quasi-rational (...) judgement. -/- The volume gives an equal footing to Greek, Arabic, and Latin philosophical traditions. It makes a substantial contribution not just to the study of the Aristotelian analysis of sense perception, but to its reception in the commentary tradition and beyond. Thus, the papers address developments in Alexander of Aphrodisias, Themistius, Avicenna, John of Jandun, Nicole Oresme, and Sayf al-Din al-Amidi, among others. The result of this is a coherent collection that attacks a well-defined topic from a wide range of perspectives and across philosophical traditions. (shrink)

In this paper, I compare various theories of perception in relation to the question of the epistemological and ontological status of the qualities that appear in perceptual experience. I group these theories into two main views: quality externalism and quality internalism, and I highlight their contrasting problems in accounting for phenomena such as perceptual relativity, illusions and hallucinations. Then, I propose an alternative view, which I callqualitative relationismand which conceives of the subject and the object of perceptual experience as essentially (...) related to one another in a process of co-constitution out of fundamental qualities. I lend support to this view by drawing on Husserl’s genetic phenomenology, which I complement with a form of neutral monism. I argue that the investigation of the temporal structure of perceptual experience leads us to find at its heart a qualitative process that is more fundamental than the two relata of perception and that gives rise to them. Then, I extend this account of perception into a general theory of intentionality and experience and I develop its implications into a neutral monist metaphysics. (shrink)

According to the evaluativist theory of bodily pain, the overall phenomenology of a painful experience is explained by attributing to it two types of representational content – an indicative content that represents bodily damage or disturbance, and an evaluative content that represents that condition as bad for the subject. This paper considers whether evaluativism can offer a suitable explanation of aversive auditory phenomenology – the experience of awful noises – and argues that it can only do so by conceding that (...) auditory evaluative content would be guilty of widespread error. Defending such an error-theory, moreover, comes with several explanatory costs. (shrink)

A central claim in contemporary philosophy of mind is that the phenomenal character of experience is entirely determined by its content. In this paper, I consider an alternative I call Mode Intentionalism. According to this view, phenomenal character outruns content. It does so because the intentional mode contributes to the phenomenal character of the experience. Here I assess phenomenal contrast arguments in support of this view. I argue that the phenomenal contrast cases appealed to allow for interpretations which do not (...) require positing intentional modes as phenomenologically manifest aspects of experience. (shrink)

Many take the possibility of hallucinations to imply that a relationalist account, according to which perceptual experiences are constituted by direct relations to ordinary mind-independent objects, is false. The common reaction among relationalists is to adopt a disjunctivist view that denies that hallucinations have the same nature as perceptual experiences. This paper proposes a non-disjunctivist response to the argument from hallucination by arguing that the alleged empirical and a priori evidence in support of the possibility of hallucinations is inconclusive. A (...) corollary upshot of the article is that whether hallucinations are possible or not is still an open empirical question. (shrink)

Is the flavor of mint reducible to the minty smell, the taste, and the menthol-like coolness on the roof of one’s mouth, or does it include something over and above these—something not properly associated with any one of the contributing senses? More generally, are there features of perceptual experiences—so-called novel features—that are not associated with any of our senses taken singly? This question has received a lot of attention of late. Yet surprisingly little attention has been paid to the question (...) of what it means to say that a feature is associated with a sensory modality in the first place. Indeed, there is only one fully developed proposal in the literature, due to Casey O’Callaghan. I argue that this proposal is too permissive to inform the debate over novel features. I go on to argue that all attempts to formulate a better proposal along these lines fail. The corollary of my arguments is that the question of the existence of novel features is poorly formed. Furthermore, the problem generalizes, with the result that we should not rely on our pre-theoretical notions of the senses as the basis of theorizing about the features of perceptual experiences. (shrink)

The aim of this chapter is to shed new light on the question of what newly-sighted subjects are capable of seeing on the basis of previous experience with mind-independent, external objects and their properties through touch alone. This question is also known as “Molyneux’s Question.” Much of the empirically driven debate surrounding this question has been centered on the nature of the representational content of the subjects’ visual experiences. It has generally been assumed that the meaning of “seeing” deployed in (...) these disputes is more or less clear and unproblematic, and therefore requires no analysis or clarification. In this chapter, we wish to challenge this assumption. We argue that getting clear on the meaning of “seeing” is the only feasible way to determine whether the empirical attempts to answer Molyneux’s Question accurately capture what newly-sighted subjects are in fact capable of seeing. (shrink)

This is an anthology of new papers by top researchers in epistemology and philosophy of mind focused on the epistemology of non-visual perception. The focus of the volume is to highlight the many different domains in which non-visual sensory experience, broadly construed to include multimodal experience associated with emotional and agential perception, plays a rational role, for instance, as an immediate justifier of belief. -/- .

There are passages in Kant’s writings according to which empirical intuitions have to be (a) singular, (b) object-dependent, and (c) immediate. It has also been argued that empirical intuitions (d) are not truth-apt, and (e) need to provide the subject with a proof of the possibility of the cognized object. Having relied on one or another of the a-e constraints, the naïve realist readers of Kant have argued that it is not possible for empirical intuitions to be representations. Instead they (...) have argued for a relationalist reading of empirical intuitions in terms of an acquaintance relation between the subject and the intuited object. -/- For the sake of argument, I will grant the naïve realist reader of Kant that empirical intuitions should satisfy all the a-e constraints. Nevertheless, by incorporating these constraints, one by one, into a representationalist theory of empirical intuitions, I will show that not only doesn’t a naïve realist reading of empirical intuitions follow, but also that the naïve realist has hastily overlooked a range of perfectly representationalist readings of intuitions available to Kant and his representationalist allies. On the positive side, I will argue that there is an extra constraint on intuitions—i.e., that givenness does not require presence to consciousness—that directly goes against any naïve realist account of intuitions. (shrink)

According to the decomposition thesis, a subject’s total perceptual experience at a time is an aggregate of discrete, modality‐specific experiences. Contrary to this view, I argue that certain cases of multisensory integration give rise to experiences that represent features of a novel type. Through the coordinated use of bodily awareness – understood here as encompassing both proprioception and kinaesthesis – and the exteroceptive sensory modalities, one becomes perceptually responsive to spatial features whose instances couldn’t be represented by any of the (...) contributing modalities functioning in isolation. I develop an argument for this conclusion focusing on two cases: 3D shape perception in haptic touch and experiencing an object’s egocentric location in crossmodally accessible space. (shrink)

A survey of the similarities and differences between BFO and DOLCE, and of the mutual interactions between Nicola Guarino and Barry Smith.

Philosophers and scientists have studied sensory perception and, in particular, vision for many years. Increasingly, however, they have become interested in the nonvisual senses in greater detail and the problem of individuating the senses in a more general way. The Aristotelian view is that there are only five external senses—smell, taste, hearing, touch, and vision. This has, by many counts, been extended to include internal senses, such as balance, proprioception, and kinesthesis; pain; and potentially other human and nonhuman senses. This (...) “multisensory turn” has been driven partly by developments in contemporary psychology and neuroscience, which have revealed a host of complex interrelations and interactions between sensory modalities previously thought to be distinct. Contrasts between modalities and other crossmodal phenomena, including multisensory integration, synesthesia, and sensory substitution, have also begun to receive more attention in a burgeoning scientific and philosophical literature on multisensory perception and other crossmodal effects. This article focuses on recent empirically informed contributions to the philosophy of perception, as well as key scientific works that provide important background information and insights into the nature of the senses and sensory perception. Indeed, one of the lessons of the multisensory turn, and of contemporary philosophy of mind more generally, is that philosophers ignore this body of empirical research at their peril because many human and animal senses turn out to be richer and more complex than philosophers and scientists had previously imagined, making this a fruitful area for interdisciplinary interaction and research. (shrink)

Physical reality is all the reality we have, and so physical theory in the standard sense is all the ontology we need. This, at least, was an assumption taken almost universally for granted by the advocates of exact philosophy for much of the present century. Every event, it was held, is a physical event, and all structure in reality is physical structure. The grip of this assumption has perhaps been gradually weakened in recent years as far as the sciences of (...) mind are concerned. When it comes to the sciences of external reality, however, it continues to hold sway, so that contemporary philosophers B even while devoting vast amounts of attention to the language we use in describing the world of everyday experience B still refuse to see this world as being itself a proper object of theoretical concern. Here, however, we shall argue that the usual conception of physical reality as constituting a unique bedrock of objectivity reflects a rather archaic view as to the nature of physics itself and is in fact incompatible with the development of the discipline since Newton. More specifically, we shall seek to show that the world of qualitative structures, for example of colour and sound, or the commonsense world of coloured and sounding things, can be treated scientifically (ontologically) on its own terms, and that such a treatment can help us better to understand the structures both of physical reality and of cognition. (shrink)

These remarks, which span the last eighteen months of Wittgenstein’s life, extend several of his well known themes from his so-called "later" writings. One such theme, which occurs as a unifying leitmotiv in this work, is that philosophical puzzlement arises from a failure to realize the indefiniteness and complexity of our concepts. Herein it takes the form of the claim that we have not one but several concepts of color. In fact, we have as many concepts of color as we (...) have different methods for determining sameness of color. "The indefiniteness in the concept of color lies, above all, in the indefiniteness of the concept of the sameness of colors, i.e., of the methods of comparing colors". E.g., when I say of two objects that they have the same color I could mean, among other things, that they visually appear to be similar or that their surfaces are painted with similarly tinted paints. Another prominent theme, which runs throughout all of his writings, both early and late, is the employment of a linguistic or grammatical theory of necessity for the purpose of refuting claims to have synthetic a priori knowledge. Herein it is phenomenology which is put in its place, its claims turning out to be only an "analysis of concepts that can neither agree with nor contradict physics". The indefiniteness in our concept of color helps spawn the illusion of such exalted knowledge, because it enables us to use a single sentence, on some occasions, to express a norm or convention of language and, on others, to report experience. "Sentences are often used on the borderline between logic and the empirical, so that their meaning changes back and forth and they count now as expressions of norms, now as expressions of experience". Considerable space is devoted to showing that the sentence "A body cannot seem to be both white and transparent" is used in the former way. While Wittgenstein succeeds in saying many interesting and original things about color, his remarks do not give any further clarification to the underlying themes, such as the two above, which he deploys in this area.—R.M.G. (shrink)

Jonathan Cohen has produced a powerful argument for Colour Relationalism: the metaphysical thesis that colours are relational properties of a certain sort—relational with respect to perceivers and circumstances. Cohen makes two important assumptions: one is that Colour Relationalism and Colour Irrealism are rivals; the second is that “error theories” are theories of last resort. In this paper, I challenge both assumptions. In particular, I argue that there is good reason to think that Colour Relationalism needs to be supplemented by some (...) version ofan Error theory. In so doing, I examine, in detail, the issues raised in a paper by Janet Levin in which she engages in an instructive debate with Colin McGinn. Levin’s paper is important since Cohen places heavy reliance on her arguments, both in defending his relationalist theory against crucial objections, and in his dismissal of error theories. (shrink)

This study explores the reasons why colour words and emotion words are frequently associated in the different languages of the world. One of them is connotative overlap between the colour term and the emotion term. A new experimental methodology, the Implicit Association Test, is used to investigate the implicit connotative structure of the Peninsular Spanish colour terms rojo, azul, verde and amarillo in terms of Osgood’s universal semantic dimensions: Evaluation, Activity and Potency. The results show a connotative profile compatible with (...) the previous literature, except for the valence of some of the colour terms, which is reversed. We suggest reasons for both these similarities and differences with previous studies and propose further research to test these implicit connotations and their effect on the association of colour with emotion words. Cette étude explore les raisons pour lesquelles les termes qui qualifient les couleurs et ceux qui qualifient les émotions sont fréquemment associés dans plusieurs langues. L’une de ces raisons est le chevauchement des connotations entre le terme qualifiant la couleur et celui qui qualifie l’émotion. On utilise une méthodologie expérimentale nouvelle, le test d’association implicite pour investiguer la structure implicite des connotations des termes de couleur en Espagnol Péninsulaire, rojo, azul, verde and amarillo en termes des dimensions sémantiques universelles d’Osgood: Evaluation, Activité, Puissance. Les résultants de l’étude montrent un profil de connotations compatible avec la litérature existante, à l’exception de la valence de certains termes de couleur, qui est inversée. Les auteurs émettent des hypothéses pour expliquer à la fois ces similaritiés et ces différences par rapport aux études déjà connues et proposent d’entreprendre d'autres recherches pour tester ces connotations implicites et leur effet sur l’association termes de couleur—termes d’émotions. (shrink)

Human skin detection is an essential phase in face detection and face recognition when using color images. Skin detection is very challenging because of the differences in illumination, differences in photos taken using an assortment of cameras with their own characteristics, range of skin colors due to different ethnicities, and other variations. Numerous methods have been used for human skin color detection, including the Gaussian model, rule-based methods, and artificial neural networks. In this article, we introduce a novel technique of (...) using the neural network to enhance the capabilities of skin detection. Several different entities were used as inputs of a neural network, and the pros and cons of different color spaces are discussed. Also, a vector was used as the input to the neural network that contains information from three different color spaces. The comparison of the proposed technique with existing methods in this domain illustrates the effectiveness and accuracy of the proposed approach. Tests were done on two databases, and the results show that the neural network has better precision and accuracy rate, as well as comparable recall and specificity, compared with other methods. (shrink)

This study contains a brief overview and comments on some basic texts on the semiotics and semantics of colour. It presents my view on the basic semiotic status of colour as a communication system and on the grammar features of colour language.

The world as we experience it is full of colour. This book defends the radical thesis that no physical object has any of the colours we experience it as having. The author provides a unified account of colour that shows why we experience the illusion and why the illusion is not to be dispelled but welcomed. He develops a pluralist framework of colour-concepts in which other, more sophisticated concepts of colour are introduced to supplement the simple concept that is presupposed (...) in our ordinary colour experience. The discussion draws on philosophical and scientific literature, both historical and modern, but it is not technical, and will appeal to a broad range of philosophers, cognitive scientists and historians of science. (shrink)

_Phenomenology of Perception: Theories and Experimental Evidence_ presents an interpretation of phenomenology as a set of commitments to discover the immanent grammar of perception by reviewing arguments and experimental results that are still important today for psychology and the cognitive sciences.