Is the sense‐data theory, otherwise known as indirect realism, a form of representationalism? This question has been under‐explored in the extant literature, and to the extent that there is discussion, contemporary authors disagree. There are many different variants of representationalism, and differences between these variants that some people have taken to be inconsequential turn out to be key factors in whether the sense‐data theory is a form of representationalism. Chief among these are whether a representationalist takes (...) the phenomenal character of an experience to be explicable in virtue of the properties of an experience that represent something or explicable in virtue of that which gets represented. Another is whether representationalists hold a non‐reductionist, or naturalistically or non‐naturalistically reductionist variant of representationalism. In addition, subtle differences in what one takes phenomenal character to be on the sense‐data theory – either awareness of sense‐data or the sense‐data themselves – together with one's account of representation, are crucial factors in determining whether sense‐data theory is compatible with representationalism. This paper explores these relationships and makes manifest the complexities of the metaphysics of two central theories of perception. 1 Many thanks are due to Clare Batty, Derek Brown, and James Stazicker for discussion and feedback on earlier drafts, which made this essay better than it would otherwise have been. This work was supported by two grants from the Arts and Humanities Research Council (grant numbers AH/1027509/1 and AH/L007053/1). (shrink)

Is the sense-data theory, otherwise known as indirect realism, a form of representationalism? This question has been underexplored in the extant literature, and to the extent that there is discussion, contemporary authors disagree. There are many different variants of representationalism, and differences between these variants that some people have taken to be inconsequential turn out to be key factors in whether the sense-data theory is a form of representationalism. Chief among these are whether a representationalist takes (...) the phenomenal character of an experience to be explicable in virtue of the properties of an experience that represent something or explicable in virtue of that which gets represented. Another is whether representationalists hold a non-reductionist, or naturalistically or non-naturalistically reductionist variant of representationalism. In addition, subtle differences in what one takes phenomenal character to be on the sense-data theory – either awareness of sense-data or the sense-data themselves – together with one's account of representation, are crucial factors in determining whether sense-data theory is compatible with representationalism. This paper explores these relationships and makes manifest the complexities of the metaphysics of two central theories of perception. (shrink)

Additional arguments for sense‐data begin by defending the claim that perceptual sensations are psychological individuals, examples being phosphenes, after‐images, and the ‘ringings’ of ‘tinnitus’. Five arguments for sense‐data follow. First, that since corresponding to every veridical visual field is a possible non‐veridical visual field of sensations, the latter merely needs a different and regular outer cause to be deemed veridical. Second, since bodily sensation experience is extremely strong evidence for the existence of a matching sensation cause, (...) the experience of ‘ringing’ must be strong evidence that a ‘ringing’ sensation is its cause, and this holds in the veridical hearing of a ringing sound. Third, that it is inconceivable that one has a truly visual experience of a red visual field, and absolutely nothing red‐looking be there before one had noticed. Fourth, that the experience of sound might have had a different developmental history, in which first there was merely experience of auditory sensation, and then over millennia such experience gradually found itself caused by regular outer phenomena, thereby constituting the hearing of sound. And a fifth argument that resembles the first argument. (shrink)

In this paper, I present a version of a sense-data approach to perception, which differs to a certain extent from well-known versions like the one put forward by Jackson. I compare the sense-data view to the currently most popular alternative theories of perception, the so-called Theory of Appearing (a very specific form of disjunctivist approaches) on the one hand and reductive representationalist approaches on the other. I defend the sense-data approach on the basis that (...) it improves substantially on those alternative theories. (shrink)

The claim that perceptual illusions can motivate the existence of sense-data is both familiar and controversial. My aim is to carve out a subclass of illusions that are up to the task, and a subclass that are not. It follows that when we engage the former we are not simply incorrectly perceiving the world outside ourselves, we are directly perceiving a subjective entity: one’s grip on the external world has been marginalized – not fully lost, but once-removed. However, (...) admitting that various illusions do not give evi¬dence for sense-data considerably limits the power of the argument from illusion (Section 6) and brings out its distinctness from the argument from perceptual relativity (Section 7). To reach these conclusions we will examine the role of ambiguity in perception (Section 3), its connection to illusion (Section 4), and the link reference has to every element of this dis¬course (Sections 2 and 5). (shrink)

This book is a defence of a form of realism which stands closest to that upheld by the Nyãya-Vaid'sesika school in classical India. The author presents the Nyãya view and critically examines it against that of its traditional opponent, the Buddhist version of phenomenalism and idealism. His reconstruction of Nyãya arguments meets not only traditional Buddhist objections but also those of modern sense-data representationalists.

Representationalism is a philosophical position which reduces all phenomenal conscious states to intentional states. However, starting from the phenomenal consciousness, the phenomenal intentionality theory provides an explanation of all sorts of intentionality. Against Michael Shim's interpretation, I argue that, although Hussserl's phenomenology is certainly considered as an antipode of strong representationalism, Husserl does not stand in opposition the weak representationalists, because Husserl maintains an essential connection between the senses of noemata and the hyletic data. In addition, Husserl's phenomenology (...) is also consistent with the phenomenal theory of intentionality. According to him, statically and genetically, all non-phenomenal intentional states take a recourse to phenomenal intentional states and eventually to sensual perceptions. (shrink)

The paper examines two of the most influential approaches to the problem of the justification of perceptual knowledge: representationalism and direct realism, taken in a version of epistemological disjunctivism. The problem itself can be represented as the need to demonstrate that there is a logical connection between a statement about the perception of a certain fact, p, and a statement about the knowledge of p. The article notes that both approaches face the problem of “the silence of the senses.” This (...) problem was pointed out by Ch.Travis, who tried to show that the content of sensory experience is not propositional; senses themselves do not tell us what fact we are dealing with when perceptually interacting with the world. The first part of the article reconstructs the argument from looks that Travis proposed to criticize representationalism. This part demonstrates that we cannot accept representationalism as an approach in the philosophy of perception that successfully overcomes the shortcomings of sense data theory. The main drawback of this theory was its adherence to the myth of the given—the idea that in perceptual experience we are dealing with non-propositional, non-conceptual “raw” data. The second part of the paper notes that Travis’s argument can also be directed against such a version of direct realism as epistemological disjunctivism, since according to representatives of this theory, the content of veridical perceptual experience, being identical with the perceived state of affairs, is propositional. This part also analyzes the response to Travis from such a representative of this theory as J.McDowell. While McDowell rejects propositionalism, he nevertheless insists that the content of perceptual experience must be regarded as conceptual. It allows us to avoid the myth of the given. In conclusion, criticism of McDowell’s approach from the phenomenological position taken by H.Dreyfus is discussed, and it is noted that McDowell’s conceptualism is quite compatible with both phenomenology and enactivism. The enactivist understanding of perception that we find in McDowell leads us to accept the enactivist account of perceptual knowledge, where the foundation of knowledge is action, i.e. something epistemically groundless. (shrink)

The intransitivity of matching sensible qualities of color isa threat not only to the sense-data theory, but to allrealist theories of sensible qualities, including thecurrent leading realist theory: representationalism.I save representationalism from this threat by way ofa novel yet empirically plausible hypothesis about theintrospective classification of sensible qualities of color.I argue that due to limitations of the visual system's abilityto extract fine-grained information about color fromthe environment, introspective classification of sensiblequalities of color is sensitive to features of context.I (...) finish by arguing for the superiority of mysolution over two alternative solutions: one by NelsonGoodman, the other by C.L. Hardin. (shrink)

In the Logical Investigations, Ideas I and many other texts, Husserl maintains that perceptual consciousness involves the intentional “animation” or interpretation of sensory data or hyle, e.g., “color-data,” “tone-data,” and algedonic data. These data are not intrinsically representational nor are they normally themselves objects of representation, though we can attend to them in reflection. These data are “immanent” in consciousness; they survive the phenomenological reduction. They partly ground the intuitive or “in-the-flesh” aspect of perception, (...) and they have a determinacy of character that we do not create but can only discover. This determinate, non-representational stratum of perceptual consciousness also serves as a bridge between consciousness and the world beyond it. I articulate and defend this conception of perceptual consciousness. I locate the view in the space of contemporary positions on phenomenal character and argue for its superiority. I close by briefly arguing that the Husserlian account is perfectly compatible with physicalism (this involves disarming the Grain Problem). (shrink)

This book is a defence of a form of realism which stands closest to that upheld by the Nyãya-Vaid'sesika school in classical India. The author presents the Nyãya view and critically examines it against that of its traditional opponent, the Buddhist version of phenomenalism and idealism. His reconstruction of Nyãya arguments meets not only traditional Buddhist objections but also those of modern sense-data representationalists.

Anscombe’s published writings, lectures and notes on sensation point toward a sophisticated critique of sense-data, representationalist and direct realist theories of perception (in both their historical and contemporary forms), and a novel analysis of the concept of sensation. Her philosophy of perception begins with the traditional question, ‘What are the objects of sensation?’, but the response is a grammatical rather than ontological enquiry. What, she asks, are the characteristics of the grammatical object of sensation verbs? Anscombe’s answer is: (...) sensation verbs take ‘intentional objects’, where an ‘intentional object’ is a description which has the characteristics of the concept of intention—characteristics elucidated in great detail in her Intention. This simple manoeuvre allows Anscombe to reject two opposing positions in the philosophy of perception - that the objects of sensation are sense-data and that the objects of sensation are tables and chairs (etc). Both views, she argues, fail to recognise the grammatical fact that the verbs of sensation take intentional objects. This chapter outlines the case for a grammatical methodology in philosophy of perception, by framing an analysis of the ways in which the sense-data and direct-realist theories of perception arise out of the theoretical demands that are generated when the grammar of the concept of sensation is left unexplored. Along the way, it will be shown that Anscombe’s philosophy of perception should not be read as fore-running contemporary representationalism, and that reading it as such in fact runs counter not only to the letter but the spirit of Ancombe’s proposal. (shrink)

In this paper I will present a puzzle about visual appearance. There are certain necessary constraints on how things can visually appear. The puzzle is about how to explain them. I have no satisfying solution. My main thesis is simply that the puzzle is a puzzle. I will develop the puzzle as it arises for representationalism about experience because it is currently the most popular theory of experience and I think it is along the right lines. However, everyone faces a (...) form of the puzzle, including the naïve realist. In §1 I explain representationalism about experience. In §§2-3 I develop the puzzle and criticize a response due to Ned Block and Jeff Speaks and another response based on a novel form of representationalism (“sensa representationalism”). In §4 I argue that defenders of “perceptual confidence” (Morrison, Munton, my earlier self) face an instance of the puzzle. In §5 I suggest that everyone faces a form of the puzzle. (shrink)

This paper examines pain states (and other intransitive bodily sensations) from the perspective of the problems they pose for pure informational/representational approaches to naturalizing qualia. I start with a comprehensive critical and quasi-historical discussion of so-called Perceptual Theories of Pain (e.g., Armstrong, Pitcher), as these were the natural predecessors of the more modern direct realist views. I describe the theoretical backdrop (indirect realism, sense-data theories) against which the perceptual theories were developed. The conclusion drawn is that pure representationalism (...) about pain in the tradition of direct realist perceptual theories (e.g., Dretske, Tye) leaves out something crucial about the phenomenology of pain experiences, namely, their affective character. I touch upon the role that introspection plays in such representationalist views, and indicate how it contributes to the source of their trouble vis-à-vis bodily sensations. The paper ends by briefly commenting on the relation between the affective/evaluative component of pain and the hedonic valence of emotions. (shrink)

Perceptual experiences have been construed either as representational mental states—Representationalism—or as direct mental relations to the external world—Disjunctivism. Both conceptions are critical reactions to the so-called ‘Argument from Hallucination’, according to which perceptions cannot be about the external world, since they are subjectively indiscriminable from other, hallucinatory experiences, which are about sense-data ormind-dependent entities. Representationalism agrees that perceptions and hallucinations share their most specific mental kind, but accounts for hallucinations as misrepresentations of the external world. According to Disjunctivism, (...) the phenomenal character of perceptions is exhausted by worldly objects and features, and thus must be different from the phenomenal character of hallucinations. Disjunctivism claims that subjective indiscriminability is not the result of a common experiential ground, but is because of our inability to discriminate, from the inside, hallucinations from perceptions. At first sight, Representationalism is more congenial to the way cognitive science deals with perception. However, empirically oriented revisions of Disjunctivism could be developed and tested by giving a metacognitive account of hallucinations. Two versions of this account can be formulated, depending on whether metacognition is understood as explicit metarepresentation or as implicit monitoring of first-order informational states. The first version faces serious objections, but the second is more promising, as it embodies a more realistic view of perceptual phenomenology as having both sensory and affective aspects. Affectbased phenomenology is constituted by various metacognitive feelings, such as the feeling of being perceptually confronted with the world itself, rather than with pictures or mere representations. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Reviewed by:How Things Are: An Introduction to Buddhist Metaphysics by Mark SideritsRick Repetti (bio)How Things Are: An Introduction to Buddhist Metaphysics. By Mark Siderits. Oxford, UK: Oxford University Press, 2022. Pp. vi + 204. Paperback $29.95, ISBN 978-0-19-760691-9.How Things Are: An Introduction to Buddhist Metaphysics, by Mark Siderits, presents ten chapters on Buddhist metaphysics that will appeal to readers from any number of backgrounds, e.g. Western philosophers concerned with (...) analytic metaphysics, but also philosophers of mind, epistemologists, phenomenologists, philosophers of meditation, comparative philosophers, non-Buddhist Indian philosophers, and Buddhist philosophers. The book includes an introductory chapter and chapters on the self, the person, fundamental ontology, causation, Buddhist nominalism, time, the external world, the internal world, and anti-realism. This book is a must-read for anyone who wishes to have a robust understanding of Buddhist metaphysics. If nothing else, the reader will appreciate the richness, complexity, and analytic rigor of Buddhist metaphysics that parallels its Western counterparts.This book is an "introduction" to "Buddhist" metaphysics, but much more, as each chapter comprehensively assesses the dialectical progression of arguments, theories, objections, rebuttals, and refinements throughout the history within and between the various schools and traditions of Buddhist metaphysics and their non-Buddhist interlocutors in Indian philosophy, and their analogues in Western philosophy. That comprehensiveness is an obvious feature, but possibly also a bug, as "Introduction to Buddhist Metaphysics" is an understatement. For readers to fully follow any "introduction," they must be able to do so on the basis of the information provided. This is largely but not entirely the case here, for, as someone fairly well-versed in Western and Indian philosophy, I think readers of How Things Are would only be able to fully follow its many abstract, complex, eloquent arguments and assertions if they were already quite well-versed in the history of both. I found it occasionally difficult to follow Siderits' reasoning, despite knowing what he means by certain unexplained terms he relies on, such as "qualia-philes," "cognitively impenetrable," and "the refrigerator illusion."The introductory chapter begins by noting that, contextually, older philosophical systems, e.g. Sāṃkhya and Nyāya, were extant when Buddhism [End Page 1] arose in India, systems which agree that liberation is about disidentifying consciousness with matter, while Buddhism is about disidentifying with anything. Siderits here sketches the eightfold path and its meditative core, noting that "the careful observation of mental states cultivated in some types of meditational practice is said to provide empirical evidence in support of key philosophical theses" (p. 11). As keen as Siderits is elsewhere to uncover problems, however, this description glosses over the fact that Buddhist meditative instructions are formulated precisely to "confirm" the "key philosophical theses" of momentariness, impersonality, and causal interdependence, in which case practitioners are looking for these things in ways that generate their perception; thus the claim that meditative experiences count as "empirical evidence of key Buddhist ideological theses" is circular (Struhl 2022).Siderits then sketches the three main stages in Buddhist development, namely, the early sūtras (the Indian Nikāyas and the Chinese Āgamas), the subsequent philosophical analyses of these (the Abhidharma), and the later developments (the Mahāyāna: both Yogācāra and Mādhyamaka), and what they all agree on: the unreality of the self, momentariness, mereological nihilism, and non-substantialism. Siderits brilliantly explains arguments for and against each, and maps out four general stances: two dualist realisms (Vaibhāṣika and Sautrāntika), one external world anti-realism (Yogācāra), and one global anti-realism (Mādhyamaka). He then explains Vaibhāṣika's direct realism (we perceive external, mind-independent objects directly, akin to naïve realism) and eternalism (each moment exists in all three times: past, present, future). He goes on to explain Sautrāntika's representationalism (we are aware only of mental representations of perceptual objects, akin to sense data) and presentism (only the present moment exists). Siderits here notes that representationalism leads to idealism (as it did in the modern West), and that Yogācāra espouses non-duality between representation and reality--a non-duality that entails local anti-realism about the physical... (shrink)

Brentano’s philosophy of perception has often been understood as a special chapter of his theory of intentionality. If all and only mental phenomena are constitutively intentional, and if perceptual experience is mental by definition, then all perceptual experiences are intentional experiences. I refer to this conception as the “standard view” of Brentano’s account of perception. Different options are available to support the standard view: a sense-data theory of perception; an adverbialist account; representationalism. I argue that none of them (...) are real options for the standard view. I suggest that Brentano’s conception of optical illusions introduces a presupposition that not only challenges the standard view - the distinction between the subjectively and objectively given - but that also makes his account more palatable for a naive understanding of perception as openness to and awareness of the world. (shrink)

This paper develops an appearance view of perception (focusing on vision). When we see an object, we see it by having it appear some way to us. We see the object, not the appearance; but we see the object via the appearance. The appearance is subjectively conditioned: aspects of it depend on attributes of the subject. We mentally have the appearance and can reflect on it as an appearance. But in the primary instance, of veridical perception, it is the object (...) that we focus on and experience. I contrast this view with naive realism (sometimes called disjunctivism) (Brewer, Campbell, Noe) and with intentionalist or representationalist views, which I call the physical content view (Dretske, Tye, Crane, Hill, Burge). I agree with these views in rejecting sense-data intermediaries and in affirming direct perception, but I argue that direct perception occurs via appearances, making mine a critical direct realism. The other views attempt to explain the spatial content of perception (shape, size, distance) entirely through the physical properties of objects and their physical relation to the perceiver (viewing position). I argue instead that there are ineliminably subjective aspects of normal spatial perception, which are systematically manifested as a lack of full phenomenal constancy. This systematic underconstancy can’t be accounted for at all by a consistent naive realism; for the physical content view, it requires that most of our ordinary perception is classified as illusory, violating the spirit of that view. Accepting phenomenal underconstancy as pervasive, I suggest that our ability to perceive the mind-independent properties of objects depends on developed conceptual abilities. In the final section, I compare my appearance view with the adverbialism of Chisholm and the critical direct realism of Roy Wood Sellars. (shrink)

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)

Though scholarship has explored Karin Costelloe-Stephen’s contributions to the history of psychoanalysis, as well as her relations to the Bloomsbury Group, her philosophical work has been almost completely ignored. This paper will examine her debate with Bertrand Russell over his criticism of Bergson. Costelloe-Stephen had employed the terminology of early analytic philosophy in presenting a number of arguments in defence of Bergson’s views. Costelloe-Stephen would object, among other things, to Russell’s use of an experiment which, as she points out, was (...) first conducted by Carl Stumpf. Russell appeals to Stumpf's experiment in his attempt to prove that sense data are terms in logical relations, a thesis presupposed by the project of logical analysis outlined in Our Knowledge of the External World. A reformulated version of Costelloe-Stephen's argument put forth by this paper shows that Russell's argument fails to provide adequate proof for his thesis. Further modifications of the argument can also address a reconstruction (based on contemporary reports) of Russell's reply to Costelloe-Stephen. In his reply, Russell would use, already in 1914, the term ‘analytic philosophy’ in contrasting his and Moore’s approach to a continental one, exemplified by Bergson and Costelloe-Stephen. (shrink)

In visual perception, the Attention reaches its final object‐goal through the mediation of more proximate visibilia. How to discover their existence? The answer is by philosophical argument. The present claim is that we see the environment through seeing the light reflected by it. This discussion has a close bearing upon the sense–datum theory, since much of the counter‐intuitiveness of the one theory is shared by the other. Arguments are presented for the claim, one of which is that if sound (...) is heard why is light not seen? It shares all the relevant properties. A light‐representationalist theory of the perception of material object is advanced, such that light at the retina is merely directionally seen and is one and the same thing as the directional seeing of objects at a distance in space. This is made possible by the ‘Transitivity of the Attention’, whereby non‐deviant causal relations ensure the multiplication of objects given to the Attention in the one visual experience. This theory is proposed as a model via which one may suitably amend G.E. Moore's instructions for singling out sense‐data. If the theory is correct, it undercuts the usual objections to the sense‐datum theory completely, and disproves Direct Realism along with it. (shrink)

According to the theory of appearing, veridical perception consists in an irreducible relation of appearing between a perceiving subject and a physical object. The paper sketches the development of the theory and its relation to competing views (sense data theory, adverbialism, representationalism). The most worked-out version of the theory, due to William Alston, is found lacking on several counts. First, Alston’s account of the phenomenal character of perception succeeds only if we disregard the possibility of illusion. Second, the (...) account implies, implausibly, that to be deceived by hallucination is to commit an introspective error concerning the phenomenal character of one’s own experience. Another unintuitive implication of the theory is that veridical perception involves not one but two objects appearing to the subject: the physical object perceived and a further, special object required to account for the possibility of hallucinatory experience. Finally, relative to its competitors, the theory of appearing is not in a privileged position to explain how perception can be a source of justification for empirical judgements. (shrink)

We face reality presented with the data of conscious experience and nothing else. The project of early modern philosophy was to build a complete theory of the world from this starting point, with no cheating. Crucial to this starting point is the data of conscious sensory experience – sense data. Attempts to avoid this project often argue that the very idea of sense data is confused. But the sense-data way of talking, the (...) sense-data language, can be freed from every blemish using ideas from contemporary metaontology. We can adopt a sense-data framework that vindicates the traditional claims of sense-data theories and leads to plausible theories of perception and color. We can, we should, and in a sense, we must. Yet when we do, we face the traditional problem of external world skepticism, head-on. The real challenge of skepticism is forced upon us; it cannot honestly be avoided using externalist tricks, burden of proof shifting, or other razzle dazzle. But the challenge can be met: we are rational to posit the external world as the best explanation of the many synchronic and diachronic patterns over our sense-data. This paper argues for all of these points and ends with a plea for analytic empiricism – a traditional sense-data version of empiricism that uses all of the tools of analytic philosophy while avoiding the more questionable doctrines of the Vienna Circle (phenomenalism, verificationism). Analytic empiricism is our last best hope for completing the great philosophical project of early modern philosophy. (shrink)

When I began to study philosophy sense-data were in the fashion; everybody had some. Nowadays talking about sense-data, like distinguishing between “shall” and “will”, is apt to be regarded as an indication that one has stopped moving with the times. Before abandoning this old habit, I want to consider whether there may not after all be something in a doctrine adopted by so many leading philosophers in pre-war England.

Frank Jackson’s defense of a Lockean representationalist theory of perception is both tightly and boldly argued. It is a first-rate analytic dissection of the relevant arguments for and objections against the representationalist position and takes up swords with D. M. Armstrong, J. J. C. Smart, G. J. Warnock, Aune, Anscombe, Price, and others, with meticulous care. It is equally forthright in accepting and defending implications of the theory which have heretofore, for one reason or another, caused the less clear and (...) more timid to quiver, if not tremble. For example, in dealing with the question whether sense-data exist in space, he writes, "I am sometimes asked why I do not follow the lead of those who locate mental objects in a special, private space. To me, this is like saying, ‘I find it mysterious that mental objects are in normal space, so I will locate them in mysterious space'". (shrink)

The theory of knowledge in early twentieth-century Anglo American philosophy was oriented toward phenomenally described cognition. There was a healthy respect for the mind-body problem, which meant that phenomena in both the mental and physical domains were taken seriously. Bertrand Russell's developing position on sense-data and momentary particulars drew upon, and ultimately became like, the neutral monism of Ernst Mach and William James. Due to a more recent behaviorist and physicalist inspired "fear of the mental", this development has (...) been down-played in historical work on early analytic philosophy. Such neglect assumes that the "linguistic turn" is a proper and permanent effect of twentieth-century philosophy, an assumption that distorts early analytic historiography, and begs a substantive philosophical question about thought and cognition. (shrink)

Analytic philosophy arose in the early decades of the twentieth century, with Bertrand Russell and G. E. Moore leading the way. Although some accounts emphasize the role of logic and language in the origin of analytic philosophy, of equal importance is the theme of perception, sense data, and knowledge, which dominated systematic philosophical discussion in the first two decades of the twentieth century in both Britain and America. This chapter examines work on perception and sense data (...) as well as the external world in the analytic tradition in the first half of the twentieth century. After sketching the situation before and just after 1900, it turns to Moore, Russell, and their interlocutors in the teens and twenties, addresses the American scene, looks to subsequent developments in the 1930s and beyond, and finally considers the fates of sense data and the ‘given’ and of the topic of perception more generally. (shrink)

Sense data are the alleged mind-dependent objects that we are directly aware of in perception, and that have exactly the properties they appear to have. For instance, sense data theorists say that, upon viewing a tomato in normal conditions, one forms an image of the tomato in one's mind. This image is red and round. The mental image is an example of a “sense datum.” Many philosophers have rejected the notion of sense data, (...) either because they believe that perception gives us direct awareness of physical phenomena, rather than mere mental images, or because they believe that the mental phenomena involved in perception do not have the properties that appear to us (for instance, I might have a visual experience representing a red, round tomato, but my experience is not itself red or round). Defenders of sense data have argued, among other things, that sense data are required to explain such phenomena as perspectival variation, illusion, and hallucination. Critics of sense data have objected to the theory's commitment to mind-body dualism, the problems it raises for our knowledge of the external world, its difficulty in locating sense data in physical space, and its apparent commitment to the existence of objects with indeterminate properties. (shrink)

This paper examines and defends the view that the immediate objects of visual perception, or what are often called sense data, are parts of the facing surfaces of physical objects-the naturalized sense data (NSD) theory. Occasionally defended in the literature on the philosophy of perception, most famously by G. E. Moore (1918-1919), it has not proved popular and indeed was abandoned by Moore himself. The contemporary situation in the philosophy of perception seems ripe for a revaluation (...) of the NSD theory. however. The NSD theory allows us to accommodate the very real shortcomings in uncritical direct realism without postulating the existence of non-physical sense data in a way that has seemed to many incompatible with any robust form of philosophical naturalism.The argument to establish the NSD theory proceeds in two stages. In §II I argue against the direct realist that we perceive three-dimensional material objects in virtue of perceiving parts of their surfaces. The argument for this conclusion involves clearly distinguishing (in § I) between two notions that have tended to be run together in discussions of perception---namely, immediate perception and direct perception. In §III I argue against the sense-datum theorist that those parts of the surfaces of those objects are not themselves perceived in virtue of the perception of anything else. (shrink)

Examples of sensory illusion show the failure of the attempt of traditional sense-datum theory to account for something's phenomenally appearing to be F by postulating the existence of a sense-datum that is actually F. the Muller-Lyer Illusion cannot be explained by postulating two sensibly presented lines that actually have the lengths the physical lines appear to have. Illusions due to color contrast cannot be explained by postulating sense-data that actually have the colors the physical samples appear (...) to have. (shrink)

It is important for our purposes to notice that in this first reduction of Theætetus' definition of knowledge as perception, Plato has introduced the distinction between sense object and physical object, for he has specifically said, "when the same wind is blowing, one of us feels chilly, the other does not." In using this example. Plato has, as Cornford observes, raised the question of how the several sense objects are related to the single physical object. This question is (...) one of the two major questions with which this paper will deal, since it is, as I have remarked, the more important question concerning the ontological status of sense-data. Cornford feels that Protagoras probably held that the physical object is both hot and cold, different observers perceiving different aspects of the same object. That is, Cornford suggests that Protagoras' own answer to this question of the relation between sense-data and physical objects is one of complete identification in every case. We will see that this theory is similar in many ways to the one worked out by Plato in the Theætetus, but the distinction between the physical object and the sense object, between the wind which feels hot and cold to different people, makes certain characteristic differences between Plato's and Protagoras' theory. Before going on to examine these differences, it is necessary to follow the further development of Plato's general theory of perception. (shrink)

The first two sections of the paper characterize the nineteenth century respect for the phenomenal by considering Helmholtz’s position and James’ and Russell’s move to neutral monism. The third section displays a moment’s sympathy with those who recoiled from the latter view -- but only a moment’s. The recoil overshot what was a reasonable response, and denied the reality of the phenomenal, largely in the name of the physical or the material. The final two sections of the paper develop a (...) third way, which retains a healthy respect for the mental and for the mind–body relation, does not attempt to equate objects with congeries of sensations, and does not attempt to deny the reality of the phenomenal. In fact, I will claim that on some conceptions (and not merely idealist-phenomenalist conceptions), the phenomenal is a fact of nature, and hence a part of the natural world. Some aspects of this third way are familiar in the various representational and critical realisms of the twentieth-century. But the realization -- or, more neutrally, the conception -- that the natural might include the phenomenal is less familiar. Yet this position has its predecessors too, not only among the physicists and psychologists of the nineteenth century, but among major physicists (as opposed to physicalist philosophers) and psychologists of the twentieth. [A re-edited version of this paper appears in Gary Hatfield, Perception and Cognition: Essays in the Philosophy of Psychology, Clarendon Press, 2009.]. (shrink)

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