In recent years, the rich tradition of various philosophical theories of perception has been increasingly studied by scholars of the history of philosophy of ...

Nichols offers the first comprehensive interpretation of the eighteenth-century Scottish philosopher Thomas Reid's theory of perception - by far the most important feature of his philosophical system. Nichols's consummate knowledge of Reid's texts, lively examples, and plainspoken style make this book especially readable. It will be the definitive analysis for a long time to come.

A comparison of disjunctive theories of action and perception. The development of a theory of action that warrants the name, a disjunctive theory. On this theory, there is an exclusive disjunction: either an action or an event (in one sense). It follows that in that sense basic actions do not have events intrinsic to them.

In Seeing Things as They Are (Searle 2015), Searle developed a direct realist’s theory of perception. According to direct realism, physical objects are directly and immediately perceived. Searle claims that Berkeley’s theory of perception goes against direct realism. For Searle, Berkeley’s theory suggests that only subjective experiences (ideas) are directly and immediately perceived, not physical objects. Contrary to Searle, G. S. Pappas claims that Berkeley’s theory of perception is consistent with the view that (...) physical objects are immediately perceivable (Pappas 1982; Pappas 1987). Given the conflicting interpretations of Berkeley’s theory of perception, this paper attempts to defend Searle’s position on Berkeley’s theory of perception. It refutes Pappas’ interpretation by arguing that he is inconsistent with Berkeley’s theses of ontological phenomenalism and heterogeneity thesis. (shrink)

Presented here in a lucid, simple style is an extended defense of a behavioral and direct-realist theory of sense perception. Originally published in 1971. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These paperback editions preserve the original texts of these important books while presenting them in durable paperback editions. The goal of the Princeton Legacy Library is to vastly increase access to (...) the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905. (shrink)

Presented here in a lucid, simple style is an extended defense of a behavioral and direct-realist theory of sense perception. Originally published in 1971. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access (...) to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905. (shrink)

Summary An attempt is made in this book to expound the Buddhist theory of perception as conceived by Dinnaga and Dharmkirti, especially as presented in Pramanavarttika of the latter. The study is divided into nine chapters. The first chapter deals with the Dinaga-Dharmakirti logico-epistemological sub-system within the overall system of Buddhist philosophy. The second chapter brings out the unique contribution of Pramanavarttika as a commentary to Pramanasamuccaya of Dinnaga. The third and fourth chapters are focused on the pre-Dinnaga (...) and non-Buddhist theories of perception. The fifth chapter deals with Dharmkirti’s well- reasoned addition of the term ‘non-illusive” to the definition of perception as given by Dinnaga. The sixth chapter is devoted to the main theme freedom from conceptual construction or kalpnapodham as the definiens of the term pratyaksha. The seventh chapter is about the four kinds of perception. The eighth chapter deals with the nature of the object of perception, the criteria of valid perception along with a discussion on illusion. The ninth chapter sums up the relevance of Pramanavarttika’ s contribution to Buddhist philosophy. (shrink)

Many philosophers believe that there is a causal condition on perception, and that this condition is a conceptual truth about perception. A highly influential argument for this claim is based on intuitive responses to Gricean style thought experiments. Do the folk share the intuitions of philosophers? Roberts et al. (2016) presented participants with two kinds of cases: Blocker cases (similar to Grice’s case involving a mirror and a pillar) and Non-Blocker cases (similar to Grice’s case involving a clock (...) and brain stimulation). They found that a substantial minority agreed that seeing occurs in the Non-Blocker cases, and that in the Blocker cases significantly less agreed that seeing occurs. They thus hypothesized that folk intuitions better align with a no blocker condition than with a causal condition. This paper continues this line of enquiry with two new experiments. The paper investigates the generality and robustness of Roberts et al.’s findings by expanding the sense modalities tested from only vision to audition and olfaction as well. The paper also uses Gricean style thought experiments as a case study for investigating the “reflection defense” against the negative project in experimental philosophy. Our results replicate and extend Roberts et al.’s study and support their hypothesis that folk intuitions better align with a no blocker condition. They also provide an empirical reason to doubt the reflection defense. (shrink)

In this essay Elizabeth de Freitas follows Tim Ingold's groundbreaking anthropological work on lines and their cultural and material significance to argue that the line is the engine of theory, be it the drawn line of inscription or mathematical measure, the exclusionary line of delineation, or the undulating generative line of flight. De Freitas focuses on contemporary theories of perception that deploy the line — and mobilize the force of theory — so as to encode and reconfigure (...) the student's body. She draws on the work of Gilles Deleuze to develop a topological approach to the line, and argues that such an approach aligns with current philosophical approaches to social interaction that might be termed “topo-philosophy.”. (shrink)

Hintikka has criticized psychologists for "hasty epistemologizing," which he takes to be an unwarranted transfer of ideas from psychology (a discipline dealing with questions of fact) into epistemology (a discipline dealing with questions of method and theory). Hamlyn argues, following Hintikka, that Gibson's theory of perception is an example of such an inappropriate transfer, especially insofar as Hamlyn feels Gibson does not answer several important questions. However, Gibson's theory does answer the relevant questions, albeit in a (...) new and radical way, which suggests that the alleged distinction between psychology and epistemology is suspect. In fact, contrary to Hintikka and Hamlyn's claims, Gibson's theory of perception appears to be a valuable source of epistemological as well as psychological ideas. (shrink)

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

The title refers to theories that require a certain sort of relation between X and an experience of S in order that S perceive X. The relation might be causal, counterfactual, doxastic, or otherwise. It is argued against such theories that there are possible cases in which X stands in the required relation to an experience of S and S does not perceive X and cases in which X is perceived though it does not stand in the required relation.

For over a century and certainly since single-unit recordings in the 1960s the theory of perception that has dominated thinking and research, with implications for the understanding of all other cognitive domains, entails a neocortical process of progressive assembly from V-1 to V-4 leading to object-construction and secondary spatial updating and recognition. In recent years, however, difficulties with the theory have emerged in neurophysiological research though a compelling alternative has not been forcefully argued. It is the purpose (...) of this paper to review the main features of the microgenetic account of perception, which inverts standard theory 180 degrees, and aligns the perceptual process with patterns of evolutionary growth. This theory developed on clinical study, and perhaps for this reason has not received sufficient attention, in mainstream cognitive and affective neuroscience, though it provides an account not only of perception but of stages in memory, imagery, the present moment, and the mind/brain state. (shrink)

Anthony J. Lisska presents a new analysis of Thomas Aquinas's theory of perception. While much work has been undertaken on Aquinas's texts, little has been devoted principally to his theory of perception and less still on a discussion of inner sense. The thesis of intentionality serves as the philosophical backdrop of this analysis while incorporating insights from Brentano and from recent scholarship. The principal thrust is on the importance of inner sense, a much-overlooked area of Aquinas's (...) philosophy of mind, with special reference to the vis cogitativa. Approaching the texts of Aquinas from contemporary analytic philosophy, Lisska suggests a modest 'innate' or 'structured' interpretation for the role of this inner sense faculty. He argues that were it not for the vis cogitativa, Aquinas would be unable to account for an awareness of the principal ontological category in his metaphysics. (shrink)

Comparisons are drawn between two theories of visual perception and two modes of information processing. Characteristics delineating dorsal and ventral visual systems lack internal consistency, probably because they are not completely separable. Mechanism is inherent when distinguishing these systems, and becomes more apparent with different processing domains. What is lacking is a more explicit means of linking these theories.

A survey of work on the philosophy of perception, mind, and mental representation by Berkeley and his early modern predecessors, notably Descartes, Hobbes, Malebranche, and Locke.

My aim in this paper is to offer a systematic analysis of a feature of Kant’s theory of perception that tends to be overlooked, viz., his account of how the imagination forms images in perception. Although Kant emphasizes the centrality of this feature of perception, indeed, calling it a ‘necessary ingredient’ of perception, commentators have instead focused primarily on his account of sensibility and intuitions on the one hand, and understanding and concepts on the other. (...) However, I show that careful attention to what he says about the nature of images, their connection to the imagination, and their role in perception in his Metaphysics Lectures, as well as in the Deduction and Schematism chapters of the first Critique reveals that Kant is working with a richer, more nuanced framework for perception than is often attributed to him. I contend that it is only once we have a revised framework for Kant’s theory of perception in place that we will be able to make further headway in debates, e.g., about whether or not he is a conceptualist about perception. (shrink)

Reid endorsed a doxastic theory of perception, on which beliefs are constituents of perceptual experiences. This theory faces the problem of known illusions: we can perceive that p while believing that not-p. Some scholars argue that the problem of known illusions and other problems entail that Reid’s view cannot be charitably interpreted as a doxastic theory. This paper explores Reid’s theoretical commitments with respect to belief acquisition and uses textual evidence to show that his theory (...) is genuinely doxastic. It then argues that a Reidian response to the problem of known illusions can be formulated by appeal to the thesis that perceptual beliefs are formed noninferentially. Reid can also resist the intuition that we lack illusory beliefs in known-illusion cases given his independent reasons for doubting our capacity to identify perceptual beliefs by introspection. The paper then surveys other problems raised in the secondary literature and argues that none decisively undermine the doxastic interpretation of Reid. (shrink)

A survey of work on perception, mind, and mental representation by 18th century philosophers after Berkeley, notably Robert Smith, William Porterfield, David Hume, Etienne de Condillac, and Thomas Reid.

Perceptual experiences are often divided into the following three broad categories: veridical perceptions, illusions, and hallucinations. For example, when one has a visual experience as of a red object, it may be that one is really seeing an object and its red colour (veridical perception), that one is seeing a green object (illusion), or that one is not seeing an object at all (hallucination). Many maintain that the same account should be given of the nature of the conscious experience (...) that occurs in each of these three cases. Those who hold a disjunctive theory of perception deny this. Disjunctivists typically reject the claim that the same kind of experience is common to all three cases because they hold views about the nature of veridical perception that are inconsistent with it. (shrink)

This chapter argues that Merleau-Ponty’s account of perception should be understood, not as a theory of perception in the usual sense, but as belonging squarely to transcendental philosophy. Contra the interpretation of Phenomenology of Perception as essentially a work in the philosophy of psychology, and the associated naturalistic construal of his ideas, it is suggested that Merleau-Ponty must be seen in the light of the history of transcendental philosophy and that an original form of idealism lies (...) at the heart of his philosophical project. The transcendental turn is presupposed by Merleau-Ponty’s claims regarding perception, and his key notion of ambiguity is a transcendental descendant of Kant’s strategy of establishing idealism by way of antinomy. (shrink)

ABSTRACT: The Reflexive Theory of Perception (RTP) claims that perception of an object or property X by an organism Z consists in Z being caused by X to acquire some disposition D toward X itself. This broadly behavioral perceptual theory explains perceptual intentionality and correct versus incorrect, plus successful versus unsuccessful, perception in a plausible evolutionary framework. The theory also undermines cognitive and perceptual modularity assumptions, including informational or purely epistemic views of perception (...) in that, according to the RTP, any X-caused and X-directed dispositions are genuinely perceptual—including affective, attitudinal, and immediately activated purely action-directed behavioral dispositions. Thus the RTP has the potential to provide the foundations for a broadly behavioral counter-revolution in cognitive science. (shrink)

Some argue that Candrakīrti is committed to rejecting all theories of perception in virtue of the rejection of the foundationalisms of the Nyāya and the Pramāṇika. Others argue that Candrakīrti endorses the Nyāya theory of perception. In this paper, I will propose an alternative non-foundationalist theory of perception for Candrakīriti. I will show that Candrakrti’s works provide us sufficient evidence to defend a typical Prāsagika’s account of perception that, I argue, complements his core non-foundationalist (...) ontology. (shrink)

Pitcher has taken upon himself the task of refining and defending the thesis that sense perception is the acquiring of true beliefs concerning particular facts about one's environment, by means of the senses. The book is divided into four parts, the first part being a critical treatment of the sense-data theories via an examination of several of the major arguments traditionally forwarded in defense of the view. The theory advocated by the author is presented in the second part, (...) where the view is first stated in unpolished form and gradually refined and qualified as problems and objections are dealt with. Any philosophical theory of perception, the author maintains, is related to the empirical sciences in that its task is to render intelligible the facts about perception, as uncovered by the relevant sciences. Thus, in the third part of the book, some recent experiments in the psychology of perception are discussed in relation to the theory of perception held by the author. In the final part of the book, Pitcher discusses color perception, since the perception of colors seems, at first glance, to present a problem for his theory. If a dispositional analysis is given for perceptual belief, what behavior is peculiar to the perception of a color? An interesting discussion of the primary-secondary quality contrast follows Pitcher's solution to this problem. Though the author does not claim originality for the theory of perception he offers, there is still much to be said for his treatment of the materials presented.--R. L. M. (shrink)

Most contemporary theories of perception, including leading forms of representationalism and naive realism, are monistic: they assume that to consciously perceive is to deploy only one kind of sensory awareness. Here I instead argue for rich pluralism, which says that to consciously perceive is to deploy two very different kinds of sensory awareness in concert: representational awareness of particulars, and non-representational, partly essence-revealing awareness of sensory qualities.

This is a paper about The Causal Self-Referential Theory of Perception. According to The Causal Self-Referential Theory as developed by above all John Searle and David Woodruff Smith, perceptual content is satisfied by an object only if the object in question has caused the perceptual experience. I argue initially that Searle's account cannot explain the distinction between hallucination and illusion since it requires that the state of affairs that is presented in the perceptual experience must exist in (...) order for the perception to be veridical. Smith's account is interestingly different in that the descriptive content, i.e. the content that presents the perceptual object as having certain properties, does not determine the object of the experience. His account consequently does not require that the state of affairs that is presented in perception exists in order for the perception to have an object. Smith argues instead that perceptual reference is determined by a specific kind of demonstrative content. In this paper it is argued that Smith's account of demonstrative content is too indeterminate and in certain circumstances prescribes the wrong object. It is subsequently argued that the theory of demonstrative content can be modified so as to avoid these consequences. This modification involves deriving the conditions of satisfaction of seeing an object from the conditions of satisfaction of seeing the shape of the object, where the shape of the object is conceived of as a particularized property, what is also called a ‘trope’. (shrink)