This chapter focuses on one of the common fallacies in Western philosophy: the constructive nature of human perception. Many of the things that we believe are generated by our senses interacting with the outside world. Our brains make decisions about what information to interpret and how to do so mostly based on our assumptions, preconceptions, and desires. An assumption that informs how we interpret the information that our brain receives is that the size, color, and shape of objects is (...) constant. This allows us to perceive an object the same way even if how we are seeing it is changing. There are of course countless visual illusions that demonstrate this fact. This is why science has proved to be such a powerful tool in understanding the world; it is designed specifically to guard against the way our senses can lead us astray. (shrink)

John Foster addresses the question: what is it to perceive a physical object? He rejects the view that we perceive such objects directly, and argues for a new version of the traditional empiricist account, which locates the immediate objects of perception in the mind. But this account seems to imply that we do not perceive physical objects at all. Foster offers a surprising solution, which involves embracing an idealist view of the physical world.

John Foster presents a penetrating investigation into the question: what is it to perceive a physical object? Is perceptual contact with a physical object, he asks, something fundamental, or does it break down into further factors? If the latter, what are these factors, and how do they combine to secure the contact? For most of the book, Foster addressed these questions in the framework of a realist view of the physical world. But the arguments which thereby unfold - arguments which (...) undermine direct realism and establish a version of the sense-datum theory - lead to the conclusion that we do no perceive physical objects at all. The only way to avoid this conclusion is by abandoning physical realism for a form of idealism, and this is the option which Foster finally embraces. The Nature of Perception makes an important contrbution to the ongoing debate: it sheds fresh light on the traditional issues, and breathes new life into positions which most current philosophers assumeto be dead. (shrink)

Hamlyn's book is exactly what the subtitle says it is: a history of the philosophy of perception, where this is taken to be a part of what is now called the philosophy of mind, as distinguished from the theory of knowledge. He expounds and criticizes, clearly and carefully, the views of Western philosophers from the pre-Socratics to Ryle and Sartre, and in a final chapter of about ten pages he offers some conclusions of his own. He holds that "in (...) the primary sense, perception can signify any means whereby we come to recognize, identify or characterize something by means of the senses" ; that there is a conceptual connection between perception and sensation, in the sense that "an essential condition of our application of the concept of perception to a being of any kind is that such a being should have sense experiences or sensations" ; but that it is a mistake "to ask what experiences, processes or activities constitute perception... [although] this is just the question which has so often been asked in the history of philosophy and psychology". "An understanding of the concepts of sensation and perception comes... not by asking what experiences, processes or activities these terms stand for. It can come only as the result of an inquiry into the concepts which form the schemes to which these particular concepts belong". These schemes, Hamlyn says, center around the concept of knowledge, and include such concepts as those of identification, recognition, and awareness. (shrink)

The process of recognition or isolation of one or several entities from among many possible entities is termed intellego perception. It is shown that not only are many of our everyday percepts of this type, but perception of microscopic events using the methods of quantum mechanics are also intellego in nature. Information theory seems to be a natural language in which to express perceptual activity of this type. It is argued that the biological organism quantifies its sensations using (...) an information theoretical measure. This, in turn, sets the stage for a mathematical theory of sensory perception. (shrink)

It can seem puzzling that there is such a thing as the philosophy of sense-perception. Psychology and the neurosciences study the mechanisms by which our senses receive information about the environment. So conceived, perception is a psychological and physiological process, whose underlying nature will be discovered empirically. Since few philosophers these days would presume to interfere with the empirical products of these sciences, the question arises as to the nature of philosophy’s distinctive role in the study of (...) class='Hi'>perception. There is not a philosophy of digestion as there is a philosophy of perception; so what is it, exactly, that the philosophy of perception is supposed to do? (shrink)

Following his earlier books The Case for Idealism and The Immaterial Self John Foster once again defends a form of idealism. For much of this book, however, idealism remains in the background. Instead, the focus is on theories of perception; Foster examines what purports to be an exhaustive taxonomy of physical realist theories of perception and, finding each one wanting, portrays idealism as the only acceptable alternative. The arguments, a selection of which are summarized below, are highly organized (...) and clearly expressed but make relatively little explicit reference to recent literature on perception. (shrink)

This paper shows that direct-object perceptual verbs, such as "hear", "smell", "taste", "feel", and "see", share a collection of distinctive semantic behaviors with depictive verbs, among which are "draw'', "paint", "sketch", and "sculpt". What explains these behaviors in the case of depictives is that they are causative verbs, and have lexical decompositions that involve the creation of concrete artistic artifacts, such as pictures, paintings, and sculptures. For instance, "draw a dog" means "draw a picture of a dog", where the latter (...) occurrence of "draw" denotes a creative activity. While perceptual verbs are not obviously causatives, they have analogous decompositions involving noun phrases that denote modality-specific sense-objects, such as a sounds, smells, flavors, touches, and sights. Thus, "hear a trumpet" means "hear the sound of a trumpet", and the same holds, mutatis mutandis, for verbs denoting the other sensory modes. If we take this analogy at face value, our perceptual reports will commit us to a form of the sense-datum theory of perception. While the analogy can be resisted, resistance requires taking on unexpected commitments. (shrink)

Can philosophical theories of perception defer to perceptual science when fixing their ontological commitments regarding the objects of perception? Or in other words, can perceptual science inform us about the nature of perception? Many contemporary mainstream philosophers of perception answer affirmatively. However, in this essay I provide two arguments against this idea. On the one hand, I will argue that perceptual science is not committed to certain assumptions, relevant for determining perceptual ontology, which however are generally (...) relied upon by philosophers when interpreting such science. On the other hand, I will show how perceptual science often relies on another assumption, which I call the ‘Measuring instrument conception’ of sensory systems, which philosophers of perception should clearly reject. Given these two symmetric lines of argument, I will finally suggest that we ought to think differently about the relationship between perceptual science and the philosophy of perception. (shrink)

This essay provides an interpretation of Jonathan Edwards's moral thought that calls attention to the motif of perception in his conception of true virtue. The aim is to illumine the extent to which Edwards's virtue ethics can be included in and contribute to prevailing approaches to virtue in contemporary theological ethics. To advance this proposal, this essay attends to the question of moral agency that Edwards's reflections on charity, the new spiritual sense, and religious affections raise. This procedure offers (...) an acute sense of the significance of perception for Edwards's virtue ethics, which in turn allows for a constructive Edwardsean entry into current theological discussions on the narrative character of virtue. (shrink)

For scatterplots with gaussian distributions of dots, the perception of Pearson correlation r can be described by two simple laws: a linear one for discrimination, and a logarithmic one for perceived magnitude (Rensink & Baldridge, 2010). The underlying perceptual mechanisms, however, remain poorly understood. To cast light on these, four different distributions of datapoints were examined. The first had 100 points with equal variance in both dimensions. Consistent with earlier results, just noticeable difference (JND) was a linear function of (...) the distance away from r = 1, and the magnitude of perceived correlation a logarithmic function of this quantity. In addition, these laws were linked, with the intercept of the JND line being the inverse of the bias in perceived magnitude. Three other conditions were also examined: a dot cloud with 25 points, a horizontal compression of the cloud, and a cloud with a uniform distribution of dots. Performance was found to be similar in all conditions. The generality and form of these laws suggest that what underlies correlation perception is not a geometric structure such as the shape of the dot cloud, but the shape of the probability distribution of the dots, likely inferred via a form of ensemble coding. It is suggested that this reflects the ability of observers to perceive the information entropy in an image, with this quantity used as a proxy for Pearson correlation. (shrink)

In this paper I articulate and defend a view that I call phenomenal dogmatism about intuitive justification. It is dogmatic because it includes the thesis: if it intuitively seems to you that p, then you thereby have some prima facie justification for believing that p. It is phenomenalist because it includes the thesis: intuitions justify us in believing their contents in virtue of their phenomenology—and in particular their presentational phenomenology. I explore the nature of presentational phenomenology as it occurs (...) class='Hi'>perception, and I make a case for thinking that it is present in a wide variety of logical, mathematical, and philosophical intuitions. (shrink)

An overview of the epistemology of perception, covering the nature of justification, immediate justification, the relationship between the metaphysics of perceptual experience and its rational role, the rational role of attention, and cognitive penetrability. The published version will contain a smaller bibliography, due to space constraints in the volume.

Questions concerning perception are as old as the field of philosophy itself. Using the first-person perspective as a starting point and philosophical documents, the study examines the relationship between knowledge and perception. The problem is that of how one knows what one immediately perceives. The everyday belief that an object of perception is known to be a material object on grounds of perception is demonstrated as unreliable. It is possible that directly perceived sensible particulars are mind-internal (...) images, shapes, sounds, touches, tastes and smells. According to the appearance/reality distinction, the world of perception is the apparent realm, not the real external world. However, the distinction does not necessarily refute the existence of the external world. We have a causal connection with the external world via mind-internal particulars, and therefore we have indirect knowledge about the external world through perceptual experience. The research especially concerns the reasons for George Berkeley’s claim that material things are mind-dependent ideas that really are perceived. The necessity of a perceiver’s own qualities for perceptual experience, such as mind, consciousness, and the brain, supports the causal theory of perception. Finally, it is asked why mind-internal entities are present when perceiving an object. Perception would not directly discern material objects without the presupposition of extra entities located between a perceiver and the external world. Nevertheless, the results show that perception is not sufficient to know what a perceptual object is, and that the existence of appearances is necessary to know that the external world is being perceived. However, the impossibility of matter does not follow from Berkeley’s theory. The main result of the research is that singular knowledge claims about the external world never refer directly and immediately to the objects of the external world. A perceiver’s own qualities affect how perceptual objects appear in a perceptual situation. (shrink)

Questions concerning perception are as old as the field of philosophy itself. Using the first-person perspective as a starting point and philosophical documents, the study examines the relationship between knowledge and perception. The problem is that of how one knows what one immediately perceives. The everyday belief that an object of perception is known to be a material object on grounds of perception is demonstrated as unreliable. It is possible that directly perceived sensible particulars are mind-internal (...) images, shapes, sounds, touches, tastes and smells. According to the appearance/reality distinction, the world of perception is the apparent realm, not the real external world. However, the distinction does not necessarily refute the existence of the external world. We have a causal connection with the external world via mind-internal particulars, and therefore we have indirect knowledge about the external world through perceptual experience. The research especially concerns the reasons for George Berkeley’s claim that material things are mind-dependent ideas that really are perceived. The necessity of a perceiver’s own qualities for perceptual experience, such as mind, consciousness, and the brain, supports the causal theory of perception. Finally, it is asked why mind-internal entities are present when perceiving an object. Perception would not directly discern material objects without the presupposition of extra entities located between a perceiver and the external world. Nevertheless, the results show that perception is not sufficient to know what a perceptual object is, and that the existence of appearances is necessary to know that the external world is being perceived. However, the impossibility of matter does not follow from Berkeley’s theory. The main result of the research is that singular knowledge claims about the external world never refer directly and immediately to the objects of the external world. A perceiver’s own qualities affect how perceptual objects appear in a perceptual situation. (shrink)

How do therapists learn to manage sexual feelings in the therapeutic relationship in an ethical, responsible manner? Data from 293 university-based psychotherapists show that the minority who report that their training prepared them to do so "very well" were more likely to have received "content-specific" training related to the topic or an opportunity to explore themselves as sexual beings, or both. In addition, they had experience with supervisors who modeled the belief that sexual feelings are a normal, expected part of (...) any human relationship and must be anticipated and planned for by therapists. (shrink)

This article discusses the theories of perception of Robert Kilwardby and Peter of John Olivi. Our aim is to show how in challenging certain assumptions of medieval Aristotelian theories of perception they drew on Augustine and argued for the active nature of the soul in sense perception. For both Kilwardby and Olivi, the soul is not passive with respect to perceived objects; rather, it causes its own cognitive acts with respect to external objects and thus allows the (...) subject to perceive them. We also show that Kilwardby and Olivi differ substantially regarding where the activity of the soul is directed to and the role of the sensible species in the process, and we demonstrate that there are similarities between their ideas of intentionality and the attention of the soul towards the corporeal world. (shrink)

This paper takes as its point of departure recent research into the possibility that human beings can perceive single photons. In order to appreciate what quantum perception may entail, we first explore several of the leading interpretations of quantum mechanics, then consider an alternative view based on the ontological phenomenology of Maurice Merleau-Ponty and Martin Heidegger. Next, the philosophical analysis is brought into sharper focus by employing a perceptual model, the Necker cube, augmented by the topology of the Klein (...) bottle. This paves the way for addressing in greater depth the paper’s central question: Just what would it take to observe the quantum reality of the photon? In formulating an answer, we examine the nature of scientific objectivity itself, along with the paradoxical properties of light. The conclusion reached is that quantum perception requires a new kind of observation, one in which the observer of the photon adopts a concretely self-reflexive observational posture that brings her into close ontological relationship with the observed. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:150 PERCEPTIONS, OBJECTS AND THE NATURE OF MIND In this paper I consider the relation between perceptions and objects for Hume and the bearing which this has on his conception of the mind as composed of perceptions. But first it is necessary to distinguish at least two senses in which he uses the term 'object'. In the first, "perceptions of the human mind" — both impressions and ideas — (...) are referred to as "our objects" (T 1,2). Objects in this sense are intentional objects. Hume almost consistently uses the noun 'perception', rarely the verb 'to perceive'. This serves to emphasize that for him perception is an object, not the perceiving of an object — a departure from the tradition of Locke and Berkeley for whom perceptions are cognitive acts having objects. That perception is not conceived by Hume as a cognitive act or form of awareness but purely as an object of awareness is evident when he says, For since all actions and sensations of the mind are known to us by consciousness, they must necessarily appear in every particular what they are, and be what they appear. Everything that enters the mind, being in reality a perception, 'tis impossible anything shou'd to feeling appear different. This were to suppose, that even when we are most intimately conscious, we might be mistaken (T 190). 1 Or again, "The only existences, of which we are certain, are perceptions, which being immediately present to us by consciousness, command our strongest assent...." (T 212). In its other sense the term 'object' is used to denote bodies, or that to which we attribute a continued existence "distinct from the mind and perception", or, borrowing Locke's expression "external 151 objects". It is just because we attribute a continued and independent existence to bodies that we distinguish them from perceptions, for "all impressions are internal and perishing existences, and appear as such" (T 194). But while we make this distinction in our everyday role of common man, the difference between a perception and an (external) object is really only a difference between two types of perceptions, on the one hand those that are characterized in their occurrence by constancy and coherence, and on the other those, for example the passions, which exhibit a different type of "regularity" in their occurrence (T 195). The constancy and coherence which some perceptions exhibit, together with a natural tendency of the mind "to bestow on the objects a greater regularity than what is observ'd in our mere perceptions" (T 197) causes us to attribute to these perceptions an uninterrupted and independent existence, an existence which is, of course, fictitious, because all perceptions are really internal and perishing. 'Tis certain, that almost all mankind, and even philosophers themselves, for the greatest part of their lives, take their perceptions to be their only objects, and suppose, that the very being, which is intimately present to the mind, is the real body or material existence (T 206). This is not to say, however, that "what any common man means by a hat, or shoe, or stone" (T 202) he also believes to be a perception. What he does believe is that the hat or the shoe is immediately present to the mind, or directly appears to his consciousness. It is Hume, the philosopher, who is here interposing the philosophical doctrine that "no beings are ever present to the mind but perceptions" (T 212). This is, of course, not an empirical generalization. It is the definition of a perception as "whatever can be present 152 to the mind" (Abstract 647). It is this definition which gives sense to the statement "their perceptions are their only objects", the term "objects" here referring to "external objects". And the common man would, no doubt, be surprised to learn that these hats, shoes, etc., which directly appear to his consciousness, are by that circumstance really only his own perceptions which he has imagined, falsely, to have a continued and independent existence. Only a few experiments, however, are needed for the philosopher to realize that perceptions, i.e., what is present to the mind, do not have a continued and independent existence. Unable to give up his vulgar... (shrink)

"This book is an important study in the philosophy of the mind; drawing on the work of philosopher Wilfrid Sellars and the theory of critical realism to develop a novel argument for understanding perception and metaphysics."--Publisher's website.

In lieu of an abstract, here is a brief excerpt of the content:150 PERCEPTIONS, OBJECTS AND THE NATURE OF MIND In this paper I consider the relation between perceptions and objects for Hume and the bearing which this has on his conception of the mind as composed of perceptions. But first it is necessary to distinguish at least two senses in which he uses the term 'object'. In the first, "perceptions of the human mind" — both impressions and ideas — (...) are referred to as "our objects" (T 1,2). Objects in this sense are intentional objects. Hume almost consistently uses the noun 'perception', rarely the verb 'to perceive'. This serves to emphasize that for him perception is an object, not the perceiving of an object — a departure from the tradition of Locke and Berkeley for whom perceptions are cognitive acts having objects. That perception is not conceived by Hume as a cognitive act or form of awareness but purely as an object of awareness is evident when he says, For since all actions and sensations of the mind are known to us by consciousness, they must necessarily appear in every particular what they are, and be what they appear. Everything that enters the mind, being in reality a perception, 'tis impossible anything shou'd to feeling appear different. This were to suppose, that even when we are most intimately conscious, we might be mistaken (T 190). 1 Or again, "The only existences, of which we are certain, are perceptions, which being immediately present to us by consciousness, command our strongest assent...." (T 212). In its other sense the term 'object' is used to denote bodies, or that to which we attribute a continued existence "distinct from the mind and perception", or, borrowing Locke's expression "external 151 objects". It is just because we attribute a continued and independent existence to bodies that we distinguish them from perceptions, for "all impressions are internal and perishing existences, and appear as such" (T 194). But while we make this distinction in our everyday role of common man, the difference between a perception and an (external) object is really only a difference between two types of perceptions, on the one hand those that are characterized in their occurrence by constancy and coherence, and on the other those, for example the passions, which exhibit a different type of "regularity" in their occurrence (T 195). The constancy and coherence which some perceptions exhibit, together with a natural tendency of the mind "to bestow on the objects a greater regularity than what is observ'd in our mere perceptions" (T 197) causes us to attribute to these perceptions an uninterrupted and independent existence, an existence which is, of course, fictitious, because all perceptions are really internal and perishing. 'Tis certain, that almost all mankind, and even philosophers themselves, for the greatest part of their lives, take their perceptions to be their only objects, and suppose, that the very being, which is intimately present to the mind, is the real body or material existence (T 206). This is not to say, however, that "what any common man means by a hat, or shoe, or stone" (T 202) he also believes to be a perception. What he does believe is that the hat or the shoe is immediately present to the mind, or directly appears to his consciousness. It is Hume, the philosopher, who is here interposing the philosophical doctrine that "no beings are ever present to the mind but perceptions" (T 212). This is, of course, not an empirical generalization. It is the definition of a perception as "whatever can be present 152 to the mind" (Abstract 647). It is this definition which gives sense to the statement "their perceptions are their only objects", the term "objects" here referring to "external objects". And the common man would, no doubt, be surprised to learn that these hats, shoes, etc., which directly appear to his consciousness, are by that circumstance really only his own perceptions which he has imagined, falsely, to have a continued and independent existence. Only a few experiments, however, are needed for the philosopher to realize that perceptions, i.e., what is present to the mind, do not have a continued and independent existence. Unable to give up his vulgar... (shrink)

The aim of this special issue of Rivista di Estetica is to investigate the nature of the auditory object and its specific status as an object of perception. The investigation was carried out using different methodologies: 1) focusing on the auditory object in relation to its metaphysical dimension; 2) working on the comparison between auditory and visual perception; 3) finding similarities and differences between auditory and musical objects; and, finally, 4) focusing exclusively on the speci...

The 500th anniversary of theReformation, which is celebrated in Ukraine at the state level, gives an opportunity to evaluate this event in various dimensions of its foundation, development and transformation in the context of the European transition from feudal relations and their citadel - the Catholic Church to the establishment of protestantism as an innovation faith and ideologiy of a new social formation. The process of the spread of early protestantism in Ukraine an its perception by the Ukrainian mentality (...) and modern functionality in independent Ukraine are researched. (shrink)

The author defends the naturalizing program of the notion of representation against the primitivist view according to which the notion of representation as belonging to psychology as a mature science is irreducible. First, the author concedes that the original teleological project trivializes the concept of representation by applying it to bacteria, protozoa, amoeba, when the best available explanation is the assumption that primitive organisms and artifacts are merely indicating proximal stimulation rather than representing the distal causes of stimulation. Yet, the (...) author does not believe that this presents an unsurmountable obstacle for the naturalizing program when what is in question is genuine sensory representation, namely perception. In the author’s view, what matters for the naturalizing program are not cases in which the concept of representation is misemployed, but rather cases in which the focus is genuine sensory representation, that is, genuine perceptions; or so he shall argue. (shrink)

When we perceive an object, we perceive the object from a perspective. As a consequence of the perspectival nature of perception, when we perceive, say, a circular coin from different angles, there is a respect in which the coin looks circular throughout, but also a respect in which the coin's appearance changes. More generally, perception of shape and size properties has both a constant aspect—an aspect that remains stable across changes in perspective—and a perspectival aspect—an aspect that changes (...) depending on one's perspective on the object. How should we account for the perspectival aspect of spatial perception? We present a framework within which to discuss the perspectival aspect of perception and put forward three desiderata that any account of the perspectival aspect of perception should satisfy. We discuss views on which the perspectival aspect of perception is analyzed in terms of constitutively mind-dependent appearance properties as well as views on which the perspectival aspect of perception is analyzed in terms of representations of mind-independent perspectival properties. (shrink)

If our experiences are cognitively penetrable, they can be influenced by our antecedent expectations, beliefs, or other cognitive states. Theorists such as Churchland, Fodor, Macpherson, and Siegel have debated whether and how our cognitive states might influence our perceptual experiences, as well as how any such influences might affect the ability of our experiences to justify our beliefs about the external world. This article surveys views about the nature of cognitive penetration, the epistemological consequences of denying cognitive penetration, and the (...) epistemological consequences of affirming cognitive penetration. (shrink)