The Problem of Perception is a pervasive and traditional problem about our ordinary conception of perceptual experience. The problem is created by the phenomena of perceptual illusion and hallucination: if these kinds of error are possible, how can perceptual experience be what we ordinarily understand it to be: something that enables direct perception of the world? These possibilities of error challenge the intelligibility of our ordinary conception of perceptual experience; the major theories of experience are (...) responses to this challenge. (shrink)

The problem of perception is the problem of explaining how perceptual knowledge is possible. The skeptic has a simple solution: it is not possible. I analyze the weaknesses of one type of skeptical reasoning by making explicit a dynamic epistemic principle from dynamic epistemic logic that is implicitly used in debating the problem, with the aim of offering a novel diagnosis to this skeptical argument. I argue that prominent modest foundationalist responses to perceptual skepticism can be (...) understood as rejecting the dynamic assumption made by the skeptic, that there are independent reasons to doubt the truth of such a principle in the context of skeptical reasoning, and that making the dynamic principle explicit allows for a better understanding of at least one objection to modest foundationalism. (shrink)

The Problem of Perception offers two arguments against direct realism--one concerning illusion, and one concerning hallucination--that no current theory of ...

Sense-perception—the awareness or apprehension of things by sight, hearing, touch, smell and taste—has long been a preoccupation of philosophers. One pervasive and traditional problem, sometimes called “the problem of perception”, is created by the phenomena of perceptual illusion and hallucination: if these kinds of error are possible, how can perception be what it intuitively seems to be, a direct and immediate access to reality? The present entry is about how these possibilities of error challenge the (...) intelligibility of the phenomenon of perception, and how the major theories of perception in the last century are best understood as responses to this challenge. (shrink)

First published in 2002. Routledge is an imprint of Taylor & Francis, an informa company.

Psychologists, physiologists, and philosophers find different problems in perception, and the interested layman is often puzzled when he comes to realize how little scientific and philosophic theories of perception have in common. The approach of this book is synoptic, in that the author believes that evidence from scientific theories of perception can be brought to bear upon the solution of problems traditionally left to the philosopher. Among problems which Hirst attempts to unravel with the help of physiology (...) and psychology are those regarding the physical causation of mental events, the status of primary and secondary qualities, and the publicity of perceptual objects. (shrink)

ABSTRACT On the traditional picture, accidents must inhere in substances in order to exist. Berkeley famously argues that a particular class of accidents—the sensible qualities—are mere ideas—entities that depend for their existence on minds. To defend this view, Berkeley provides us with an elegant alternative to the traditional framework: sensible qualities depend on a mind, not in virtue of inhering in it, but in virtue of being perceived by it. This metaphysical insight, once correctly understood, gives us the resources to (...) solve a central problem that still plagues the philosophy of perception—the problem of how, given the power of the mind to create phenomenally rich experiences, ordinary perception can nonetheless be said to acquaint us with the mind-independent world. (shrink)

It will be obvious to anyone with a slight knowledge of twentieth-century analytic philosophy that one of the central themes of this kind of philosophy is the nature of perception: the awareness of the world through the five senses of sight, touch, smell, taste, and hearing. Yet it can seem puzzling, from our twenty-first-century perspective, why there is a distinctively philosophical problem of perception at all. For when philosophers ask ‘what is the nature of perception?’, the (...) question can be confused with other, purely empirical, questions. For example: how do our sense-organs actually work? What are the mechanisms of smell and taste? How do vision and touch actually provide us with information about the world around us? There is much general agreement, in its broad outlines, about how to answer such questions empirically; but it is not clear what role, if any, philosophy has to play in answering these empirical questions. So if these were the only questions about the nature of perception, then it would not be clear exactly what the philosophy of perception is supposed to be about. (shrink)

An introductory overview of the main issues in the epistemology of perception.

The historically most central epistemological issue concerning perception, to which this article will be almost entirely devoted, is whether and how beliefs about physical objects and about the physical world generally can be justified or warranted on the basis of sensory or perceptual experience—where it is internalist justification, roughly having a reason to think that the belief in question is true, that is mainly in question (see the entry justification, epistemic: internalist vs. externalist conceptions of). This issue, commonly referred (...) to as “the problem of the external world,” divides into two closely related sub-issues, which correspond to the first two main sections below. The first of these issues has to do with the nature of sensory experience and its relation to the physical world; it is typically (though as we shall see not altogether perspicuously) formulated as the question of what are the immediate objects of awareness in sensory experience or, in a variant but essentially equivalent terminology, of what is given in such experience. Perhaps the most historically standard, though not currently the most popular answer to this question has been that it is sense-data (private, non-physical entities that actually have the immediately experienced sensory qualities) that are the immediate objects of awareness or that are given. The second issue has to do with the way in which beliefs about the physical world are justified on the basis of such sensory experience. If it is concluded that physical objects are not themselves given, the two main answers to this question are representationalism or indirect realism (the view that the immediate objects of experience represent or depict physical objects in a way that allows one to infer justifiably from such experience to the existence of the corresponding “external” objects) and phenomenalism (the view.. (shrink)

A fundamental problem in Christian theology has been that of determining whether God can be an object of experience and how we should account for God's empirical availability to us. Can experiences of God serve to inform and justify our theological beliefs and practices? The central claim in this work is that there is a radical mistake in many contemporary accounts that require grounding a theological story of Gods availability to us in experience in a prior general philosophical theory (...) of perception. Instead, it is argued that the philosophical problem of perception is a pseudoproblem and that in virtue of their entanglement with that pseudoproblem, the influential accounts of Christian religious experience, such as in Jean-Luc Marion, Kevin Hector, or William P. Alston, are at bottom incoherent. The study concludes with a new reading of Gregory of Nyssa and his theology of the spiritual senses, which is free from the bewitchment of the problem of perception. This critical retrieval of Nyssen opens the path toward a viable contemporary theological empiricism, one that characterizes both tasks of theological contemplation and spiritual formation in terms of a receptivity and responsiveness to the perceptible presence and agency of God in the world. (shrink)

What is the distinctively philosophical problem of perception? Here it is argued that it is the conflict between the nature of perceptual experience as it intuitively seems to us, and certain possibilities which are implicit in the very idea of experience: possibilities of illusion and to the world' which involves direct awareness of existing objects and their properties. But if one can have an experience of the same kind without the object being there -- a hallucination of an (...) object -- then it seems that perceptual experience cannot essentially be such a relation. This is the fundamentally philosophical problem of perception; the various philosophical theories of perception in the 20th and 21st centuries can be seen as responses to it. (shrink)

What is it for someone to perceive a physical item? I want to pursue this question in the framework of physical realism—the framework of the assumption that the physical world is something whose existence is logically independent of the human mind and metaphysically fundamental. The choice of this common-sense framework might seem hardly worth mentioning. But, as will emerge, I have a special reason for doing so.

One might think that the best metaphysical theory of the world includes the existence of other minds and of the physical world, while denying that we can know or be certain that this theory is true. This chapter considers Solipsism as a theory about reality. It examines the Veil of Perception, and then considers a series of direct arguments against the Solipsistic Veil, Phenomenalism, and Solipsism itself. The chapter looks at two obviously inadequate arguments for the Veil, namely, Berkeley's (...) inconceivability argument and the argument from causal mediation. Then, the chapter looks at two much more interesting and important arguments, namely, the argument from hallucination and illusion and the argument from color and other secondary qualities. Besides the Veil of Perception, arguments for Idealism and Solipsism depend on an appeal to Ockham's Razor. These arguments can be taken either as providing additional support for Perceptual Realism or as a defense of Inferred Anti‐Idealism. (shrink)

Many philosophers have maintained that secondary qualities are private mental entities. In this paper I use the discussions of H. A. Prichard, Berkeley and G. E. Moore on the status of secondary qualities to bring out the assumptions that underlie this view. One of these is that secondary qualities are particular. I show that Prichard holds these assumptions and then I attempt to diagnose why he holds them. In the course of this diagnosis I explore several senses of 'dependent' which (...) play a role in this view. Finally, I show that a causal dependence of secondary qualities upon the perceiver will not lead to the conclusion that secondary qualities are private unless the philosophical thesis that they are particular is already assumed. (shrink)

Problems of Vision is divided into three parts. The first part argues for the “insight at [the] core” of the causal theory of perception.

A perceptual experience of a given object seems to make the object itself present to the perceiver’s mind. Many philosophers have claimed that naïve realism (the view that to perceive is to stand in a primitive relation of acquaintance to the world) provides a better account of this phenomenological directness of perceptual experience than does the content view (the view that to perceive is to represent the world to be a certain way). But the naïve realist account of this phenomenology (...) has a conspicuous shortcoming: it explains the phenomenological directness of veridical perceptual experiences but not of hallucinations. Conversely, I maintain that a particular variety of the content view provides a unified account of the phenomenological directness of both veridical and hallucinatory experiences. If so, then contrary to what is often assumed, the phenomenological facts concerning perceptual experience are explained better by the content view than by naïve realism, and consequently, we have a compelling reason to prefer the content view to naïve realism. (shrink)

In opposition to mainstream theory of mind approaches, some contemporary perceptual accounts of social cognition do not consider the central question of social cognition to be the problem of access to other minds. These perceptual accounts draw heavily on phenomenological philosophy and propose that others' mental states are “directly” given in the perception of the others' expressive behavior. Furthermore, these accounts contend that phenomenological insights into the nature of social perception lead to the dissolution of the access (...) problem. We argue, on the contrary, that the access problem is a genuine problem that must be addressed by any account of social cognition, perceptual or non-perceptual, because we cannot cast the access problem as a false problem without violating certain fundamental intuitions about other minds. We elaborate the fundamental intuitions as three constraints on any theory of social perception: the Immediacy constraint; the Transcendence constraint; and the Accessibility constraint. We conclude with an outline of an account of perceiving other minds that meets the three constraints. (shrink)

I much appreciate the honour of being invited to deliver the first Manson lecture, which, its founder has laid down, is to be devoted to the consideration of some subject of common interest to philosophy and medicine. I cannot think of anything which better fulfils that condition than the neurological approach to the problem of perception. The neurologist holds the bridge between body and mind. Every day he meets with examples of disordered perception and he learns from (...) observing the effects of lesions produced by disease, or by the physiologist's experiments, something of how the neural basis of perception is organized. It is possible to study perception as though this was largely irrelevant. How far that view is right will be for you to judge when I have finished. (shrink)