This paper presents an argument against A D Smith’s Direct Realist theory of perception, which attempts to defend Direct Realism against the argument from illusion by appealing to conscious perceptual states that are structured by the perceptual constancies. Smith’s contention is that the immediate objects of perceptual awareness are characterised by these constancies, which removes any difficulty there may be in identifying them with the external, or normal, objects of awareness. It is here argued that Smith’s theory (...) does not provide an adequate defence of Direct Realism because it does not adequately deal with the difficulties posed by the possibility of perceptual illusion. It is argued that there remain possible illusory experiences where the immediate objects of awareness, which in Smith’s account are those characterised by perceptual constancies, cannot be identified with the external objects of awareness, contrary to Direct Realism. A further argument is offered to extend this conclusion to all non-illusory cases, by adapting an argument of Smith’s own for the generalising step of the Argument from Illusion. The result is that Smith’s theory does not provide an adequate Direct Realist account of the possibility of perceptual illusion. (shrink)

In the first chapter, I explain the concept of awareness and the distinction between direct and indirect awareness. Direct awareness of x is understood as awareness of x which is not based on awareness of anything else, and the "based on" relation is understood as a particular way in which one state of awareness can be caused by another state of awareness when the contents of the two states are logically related.

I discuss the so-called “problem of perception” in relation to the Argument from Illusion: Can we directly perceive the external world? According to Direct Realism, at least sometimes perception provides direct and immediate awareness of reality. But the Argument from Illusion threatens to undermine the possibility of genuine perception. In The Problem of Perception (2002), A. D. Smith proposes a novel defense of Direct Realism based on a careful study of perceptual phenomenology. According to (...) his theory, the intentionality of perception is explained in terms of three phenomenological features of perception: phenomenalthree-dimensional spatiality, movement, and the Anstoss. He argues that this account of perceptual intentionality can resist a central premise of the Argument from Illusion, i.e. the “sense-datum inference.” After presenting Smith’s theory, I argue that he fails to distinguish two independent tasks for the direct realist, and that he underestimates the threat of the so-called “sense-datum infection.” My contention is that even if Smith’s theory of perceptual intentionality is correct, Direct Realism has not been saved from the Argument from Illusion. To resist the Argument from Illusion, it is not enough to merely consider how to block the sense-datum inference. The direct realist must also find a way to undermine the sense-datum infection. If so, I suggest, Direct Realism cannot be defended by perceptual phenomenology alone. (shrink)

Recently, Kenneth Westphal has presented a highly interesting and innovative reading of Kant's critical philosophy.2 This reading continues a tradition of Kantscholarship of which, e.g., Paul Guyer's work is representative, and in which the antiidealistic potential of Kant's critical philosophy is pitted against its idealistic selfunderstanding. Much of the work in this tradition leaves matters at observing the tensions this introduces in Kant's work. But Westphal's proposed interpretation goes farther. Its attractiveness derives for the most part from the promise that (...) it permits an internal critique of Kant's transcendental idealism (TI), that is, a critique that is based on the very resources of Kantian transcendental philosophy.3 In contrast to these resources, which currently seem to go through a sort of revival in an enormous array of fields, TI is notorious for dismaying even sympathetic interpreters. How attractive and needed such an internal critique of TI would be becomes all the more patent when we place such a promise in the context of some of the contemporary discussions about TI after Allison's famous defense of it. Before directly engaging with Westphal's interpretation, I would therefore like to quickly sketch on what background it acquires its force (I). After characterizing the main features of Westphal's view (II), and supporting it in more detail by an account of Kant's theory of cognitive significance (III), I then want to review the extent of its success to present Kant as issuing an anti-skeptical argument (IV.1), or semantic views that are incompatible with TI (IV.2), or a 'proof of not merely empirical realism' (IV.3). I agree that purely idealist readings of Kant are mistaken. Westphal's... (shrink)

Direct Realism often emerges as a solution to a certain type of problem. Hume and, especially, Berkeley, wielding some of the most powerful arguments of 18th Century philosophy, forcefully attacked the notion that there could be good inferences from the occurrence of one’s sensations to the existence of external, mind-independent bodies. Given the success of these attacks, and also given the assumption, made by Berkeley and arguably by Hume as well, that our knowledge of and rational belief in (...) the existence of material objects would depend upon there being such good inferences, a problem arises: We cannot know of or rationally believe in the existence of material objects. Reid’s Direct Realism then emerges as the solution to this problem. Reid admits the success of Berkeley’s and Hume’s attacks against the possibility of successfully grounding our material world beliefs on inferences from our sensations,[1] but claims that our belief in the existence of material objects can be perfectly rationally acceptable, and can amount to knowledge, despite the lack of such inferences. Though he did not use the terminology, it seems to be Reid’s position – and it’s this position that I will be referring to as his “Direct Realism” here – that certain perceptual beliefs whose content is such that they imply the existence of material objects are properly basic: they are rationally held, and if true can amount to knowledge, without having to be based on any other beliefs, including, most notably, beliefs about one’s own sensory experiences. (shrink)

During the perception of human actions by robotic assistants, the robotic assistant needs to direct its computational and sensor resources to relevant parts of the human action. In previous work we have introduced HAMMER, a computational architecture that forms multiple hypotheses with respect to what the demonstrated task is, and multiple predictions with respect to the forthcoming states of the human action. To confirm their predictions, the hypotheses request information from an attentional mechanism, which allocates the robot’s resources as (...) a function of the saliency of the hypotheses. In this paper we augment the attention mechanism with a component that considers the content of the hypotheses’ requests, with respect to the content’s reliability, utility and cost. This content-based attention component further optimises the utilisation of the resources while remaining robust to noise. Such computational mechanisms are important for the development of robotic devices that will rapidly respond to human actions, either for imitation or collaboration purposes. (shrink)

Context: Direct realism is a non-reductive, anti-representationalist theory of perception lying at the heart of mainstream analytic philosophy, where it is currently generating a lot of interest. For all that, it is widely held to be both controversial and anti-scientific. On the other hand, the sensorimotor theory of perception initially generated a lot of interest within enactive philosophy of cognitive science, but has arguably not yet delivered on its initial promise. Problem: I aim to show that the sensorimotor (...) theory and direct realism complement each other, and that the result is a philosophically radical, but fully scientifically realised, theory of perception. Method: The article uses philosophical analysis and discussion. It also draws on empirical evidence from the relevant cognitive sciences. Results: Direct realism can be augmented by sensorimotor theory to become a scientifically tractable alternative to the mainstream, representationalist research programme within cognitive science. Implications: The article aims to further clarify the philosophical importance of the sensorimotor approach to perception. It also aims to show that the apparently radical claim that we perceive objects themselves is amenable to normal scientific study. Constructivist content: Objects are analysed as a kind of collaboration between the world and the perceiver. On this account, we can never perceive outside the categories of our own understanding, but we do perceive genuinely outside our own heads. Thus, the approach here is not exactly constructivism, though it shares many goals and results with constructivism. (shrink)

This chapter, which is concerned with the phenomenology of perception, especially the role of content and context in the intentionality of perception, tries to provide an account of the structure of perceptual experience and its intentional relation to its objects. In particular, it presents an analysis of consciousness and intentionality in perception. Perceptual experience is sensuous and paradigmatically intentional. The intentional character of a visual experience of an object is different to the successful intentional relation between the experience and (...) the object. The twin-tomatoes experiment reveals that content alone does not settle which tomato is the correct object of perception. Perception gives a direct awareness of an object in the sense that the external object is itself the object of perception, and the object is actually present to the subject and experienced as actually present in the context of perception. (shrink)

The overall contention of this paper, conducted through an examination of the idea of a ‘critical direct realism’ as this was developed across the twentieth century first in the thought of Roy Wood Sellars (1880–1973) and then in a different form by his son Wilfrid Sellars (1912–1989), is that such a view, in both its conceptual and sensory representational dimensions, is plausible as a form of direct realism. However, to the extent that the mediating sensory or (...) qualitative dimension was itself conceived by both thinkers in what I characterize as strongly ‘phenomenal realist’ terms, the resulting philosophical commitments were of a kind that most current direct realists would generally not accept, even in cases where they themselves are phenomenal realists (perhaps naïve realists). The various perceiver-dependent forms of that additional, perhaps detachable commitment of most critical realists is likely responsible for the assessment of William Pepperell Montague (1873–1953) and other ‘neo-realists’ that ‘critical realism’ is not really, as advertised by Roy Wood Sellars, a version of direct realism, but ultimately a retreat to indirect realism. However, I argue that in both of its primary conceptual and sensory representational commitments, ‘critical direct realism’ remains a plausible competitor to direct acquaintance versions of direct realism. (shrink)

In this paper, I show how Thomas Aquinas's account of sensory cognition is undergirded by a strong commitment to direct realism. According to the specific form of direct realism I articulate and defend here, which I claim emerges from a proper study of Aquinas's account of sensory cognition, it is only by having sense experiences that possess definitive content--content that is isomorphic or formally identical with the sensible features of mind-independent reality--that we can be (...) credited with occupying world-intending sensory states, in which we see, hear, taste, touch, and smell objective aspects or features of the world itself. Thus, it is by virtue of possessing the requisite content that the veridical sensations or perceptions we enjoy and possess bear directly on the world, and thereby unite us to the world. In defending this claim, I exposit what I take to be the most important features of Aquinas's account of sensory cognition: most notably, the operation of the external senses, and secondarily, the role of the common sense and phantasms. Interpreting Aquinas in the right light allows us better to understand and appreciate his account of sensory cognition as well as the nature and benefits of direct realism itself. (shrink)

In the philosophy of perception, direct realism has come into vogue. Philosophical authors assert and assume that what their readers want, and what anyone should want, is some form of direct realism. There are disagreements over precisely what form this direct realism should take. The majority of positions in favor now offer a direct realism in which objects and their material or physical properties constitute the contents of perception, either because we have (...) an immediate or intuitive acquaintance with those objects and properties, or because our perceptual states have informational content that represents the properties of those objects (and which is not itself an object of perception and has no specifically subjective aspect). This paper considers various forms of perceptual realism, including, for purposes of comparison, the largely abandoned indirect or representative realism. After surveying the variety of perceptual realisms and considering their various commitments, I introduce some considerations concerning the phenomenology of visual space that cause trouble for most forms of direct realism. These considerations pertain to the perception of objects in the distance and, secondarily, to the perception of shapes at a slant. I argue that one of the lesser known varieties of perceptual realism, critical direct realism, can meet the challenges offered by the facts of spatial perception. (shrink)

Abstract The debate in the philosophy of perception between direct realists and representationalists should influence the debate in epistemology between internalists and externalists about justification. If direct realists are correct, there are more consciously accessible justifiers for internalists to exploit than externalists think. Internalists can retain their distinctive internalist identity while accepting this widened conception of internalistic justification: even if they welcome the possibility of cognitive access to external facts, their position is still quite distinct from the typical (...) externalist position. To demonstrate this, Alvin Goldman’s critique of internalism is shown to ignore important lessons from the case for direct realism about perception. In particular, it unjustifiably assumes that internalism entails that only facts simultaneous with the justification of a belief can justify the belief. Goldman’s definition of a “justifier” is also inconsistent with the overall guidance conception of epistemology he takes for granted in his critique of internalism. Content Type Journal Article Pages 1-26 DOI 10.1007/s12136-012-0146-4 Authors Benjamin Bayer, Department of Philosophy, Loyola University, New Orleans, 6363 St. Charles Avenue, Box 046, New Orleans, LA 70118, USA Journal Acta Analytica Online ISSN 1874-6349 Print ISSN 0353-5150. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Temporal Registers in the Realist NovelIlya BernsteinIThere are two ways of thinking about time: in terms of sequences of events, and in terms of time-scales. In the first case, each event is conceived of as having a "before" and an "after": it is categorized as part of a sequence and distinguished from other events by its position in that sequence. In the second case, there is no "before" (...) and "after": events are conceived of as occupying different time-scales and distinguished from one another by being associated with durations of greater or lesser magnitude.1 Thus, the same situation may be categorized alternatively as an unfolding succession of events (event 1, event 2, event 3...) or as a progression of overlapping events on expanding time-scales (the second-event, the minute-event, the hour-event...). In what follows, I will argue that this distinction can shed light on narrative structure—as well as musical form—and that it has particularly interesting implications for literary realism.It may be claimed that this distinction between two ways of approaching time has been an explicit theme in the arts over the course of their history. Different musical forms, for instance, may be seen as being oriented toward one paradigm or the other. Thus, melody aesthetically suggests a sequential conception of time. Melodic forms are supposed to take listeners on a journey from point A to point B, by way of a succession of points in between. By contrast, a form such as the fugue addresses itself to discovering different degrees of density and intensity within the [End Page 173] same event, as it were. It adds layer upon layer, aesthetically dilating the event without moving away from it. The ideology of melody, we might say, thus leans toward a conception of time as a sequence, while the ideology of the fugue suggests a scaling notion of time.Echoes of the distinction between these two aesthetic alternatives may also be found in literature, as embodied in different approaches to narrative. Narrative, conceived of as a succession of episodes, suggests a sequential conception of time, oriented around a "before" and an "after." Yet within these parameters, a spectrum of tendencies may be identified. In some literary forms, the succession of episodes is organized to suggest the idea of a passage from one event to the next (Shakespearean drama, the realist novel), as the notions of "before" and "after" are projected onto ideas of past and future. In others, the succession of episodes represents the layer-by-layer assembly of some larger imaginative or conceptual construct (as is true, in different ways, of such texts as Plato's dialogues, the Divine Comedy, and any number of religious, philosophical, or allegorical narratives): "before" and "after" are interpreted not so much in terms of a past and a future, as in terms of premises and conclusions.Within this spectrum, the novel—and perhaps the realist novel in particular—would appear to be the literary form par excellence that embodies a sequential conception of time. It thematizes and dramatizes time's passage—the unknowability of the future and the irretrievability of the past—more exhaustively than any other narrative genre. Yet as I hope to show below, while the explicit themes of literary realism treat fictional events as a sequence (event 1, event 2, event 3...), its implicit organization is grounded in time-scales and directs readers' attention to differentiations among events taking place at different temporal registers (the sentence-event, the chapter-event, the novel-event...).III would like to begin exploring the theoretical distinction laid out above by going back to music and focusing on an empirical observation that has been made about a variety of musical forms. It has been pointed out that when people listen to a piece of music, they retain in their memory, at greater or lesser degrees of awareness, a certain segment of what they have just heard; this memory serves as a background for their perception of incoming sounds and as a frame of reference for their experience of them. Consequently, musical forms may be characterized, [End Page 174] compared, and distinguished from one another based... (shrink)

Representationalism (aka intentionalism) has been the most significant weapon in the late twentieth century defence of direct realism. However, although the representationalist objection to the Phenomenal Principle might provide an effective response to the arguments from illusion and hallucination, plausible representationalist theories of perception are, when fleshed-out, incompatible with metaphysical direct realism’s directness-claim. Indeed within cognitive science, direct perception is the avowedly-radical anti-representationalist heterodoxy. Drawing on both the philosophy and cognitive science, we develop a robust (...) argument against representationalist direct realism which does not rest on illusory cases or the notion of an object of immediate awareness. None of the representations so far posited, or in prospect, can supply the content required of a representation in a direct realist theory of veridical perception. (shrink)

Context: The enactivist tradition, out of which neurophenomenology arose, rejects various internalisms – including the representationalist and information-processing metaphors – but remains wedded to one further internalism: the claim that the structure of perceptual experience is directly, constitutively linked only to internal, brain-based dynamics. Problem: I aim to reject this internalism and defend an alternative analysis. Method: The paper presents a direct-realist, externalist, sensorimotor account of perceptual experience. It uses the concept of counterfactual meaningful action to defend this (...) view against various objections. Results: This account of experience matches certain first-person features of experience better than an internalist account could. It is fully tractable as “normal science.” Implications: The neuroscientific conception of brain function should change from that of internal representation or modelling to that of enabling meaningful, embodied action in ways that constitutively involve the world. Neurophenomenology should aim to match the structure of first-person experience with the structure of meaningful agent-world interactions, not with that of brain dynamics. Constructivist content: The sensorimotor approach shows us what external objects are, such that we may enact them, and what experience is, such that it may present us with those enacted objects. (shrink)

In response to Ari Armstrong's essay, "A Direct Realist's Challenge to Skepticism," Huemer defends his views on two issues concerning the nature of perception, against the Objectivist position: First, he argues that perceptual experiences have propositional but nonconceptual content; second, he argues that in perceptual illusions, the senses misrepresent their objects. He finds that the Objectivist view that perception cannot misrepresent because it lacks propositional content not only is absurd but opens the door to philosophical skepticism.

In this paper, I respond to Millar’s recent criticism of naïve realism. Millar provides several arguments for the thesis that there are powerful phenomenological grounds for preferring the content view to naïve realism. I intend to show that Millar’s arguments are not convincing.

It is commonly said of modern philosophy that it introduced a representative theory of perception, a theory that places representative mental items between perceivers and ordinary physical objects. Such a theory, it has been thought, would be a form of indirect realism: we perceive objects only by means of apprehending mental entities that represent them. The moral of the story is that what began with Descartes’s revolution of basing objective truth on subjective certainty ends with Hume’s paroxysms of ambivalence (...) and skepticism in the conclusion of the first book of the.. (shrink)

SCIENTISTS HAVE DISCOVERED that water is H2O. Water is H2O is true. But is it a necessary truth? In other words, is it true in all possible worlds? Some people think it is. For example Hilary Putnam, in his well-known Twin Earth argument, concludes that "water is H2O" is necessarily true; thus a liquid which phenomenally resembles H2O and fits the description of water in almost all aspects, but has the chemical formula XYZ, cannot be water. Saul Kripke has made (...) a similar claim about the necessary identity between water and H2O. Because this type of truth is based on empirical discoveries, Kripke calls truths of this sort "necessary a posteriori." The thesis shared by Putnam and Kripke has two premises: a realist view that natural kinds exist independently of human cognition, and a theory of direct reference of natural kind terms. Opposing the view that natural kind terms pick out objects through descriptions, Putnam and Kripke hold that natural kind terms pick out natural kinds in the world in a direct way. Based on these two premises, they argue that, if two natural kind terms, A and B, designate the same thing in the world, "A = B" expresses a necessary identity. (shrink)

In this paper I unpack a realistic conception of politics by tightly defining its constitutive features: conflict and order. A conflict emerges when an actor is disposed to impose his/her views against the resistance of others. Conflicts are more problematic than moralists realize because they emerge unilaterally, are potentially violent, impermeable to content-based reason, and unavoidable. Order is then defined as an institutional framework that provides binding collective decisions. Order is deemed necessary because individuals need to cooperate to (...) survive, but groups cannot spontaneously secure collective decisions and are prone to conflicts. Particularly, the fact that potentially violent conflicts emerge unilaterally means that order requires coercion. I conclude that mischaracterizing conflict and order leads to undesirable normative principles, and that this criticism can be leveraged not only against Rawlsian liberals who moralize conflicts away, but also against some agonists who underestimate the need for order and some communitarians who underplay both circumstances. (shrink)

In this paper I unpack a realistic conception of politics by tightly defining its constitutive features: conflict and order. A conflict emerges when an actor is disposed to impose his/her views against the resistance of others. Conflicts are more problematic than moralists realize because they emerge unilaterally, are potentially violent, impermeable to content-based reason, and unavoidable. Order is then defined as an institutional framework that provides binding collective decisions. Order is deemed necessary because individuals need to cooperate to (...) survive, but groups cannot spontaneously secure collective decisions and are prone to conflicts. Particularly, the fact that potentially violent conflicts emerge unilaterally means that order requires coercion. I conclude that mischaracterizing conflict and order leads to undesirable normative principles, and that this criticism can be leveraged not only against Rawlsian liberals who moralize conflicts away, but also against some agonists who underestimate the need for order and some communitarians who underplay both circumstances. (shrink)

Recent debates between representational and relational theories of perceptual experience sometimes fail to clarify in what respect the two views differ. In this essay, I explain that the relational view rejects two related claims endorsed by most representationalists: the claim that perceptual experiences can be erroneous, and the claim that having the same representational content is what explains the indiscriminability of veridical perceptions and phenomenally matching illusions or hallucinations. I then show how the relational view can claim that errors (...) associated with perception should be explained in terms of false judgments, and develop a theory of illusions based on the idea that appearances are properties of objects in the surrounding environment. I provide an account of why appearances are sometimes misleading, and conclude by showing how the availability of this view undermines one of the most common ways of motivating representationalist theories of perception. (shrink)

This thesis is intended to analyze a mental phenomenon widely neglected in current philosophical discussions: personal memories. The first part presents a general framework to better understand what personal memories are, how we access our personal past and what we access about our personal past. Chapter 1 introduces traditional theories of memory: direct realism and representationalism in their different versions, as well as some objections. I defend here a particular form of representationalism that is based on the (...) distinction between content, intentional object and ontological object. Chapter 2 explores the possible contents of our personal memories, which prove to be heterogeneous, whereas chapter 3 analyses their possible intentional objects, with a special focus on past events. The second part of the thesis explores an aspect of our personal memories that was omitted in the first part: the senses in which our personal past is apprehended as personal. Chapter 4 examines the way in which the “self” intervenes in the construction of our personal memories. Chapters 5 and 6 focus on the analysis of what seems to be the most subjective aspect of our memories, that is, the emotions and feelings of our past experiences. In these last two chapters, I analyze the different interactions that can take place between memories and emotions and defend the idea that there can be emotional memories that are reducible neither to a propositional memory nor an occurrent and present emotion. The overall intention of this thesis is twofold. First, I aim to show to the philosophical community that there is still a lot to be said and discussed about memory as a mental phenomenon. And second, I intend to emphasize the importance of bringing into the philosophical discussions about the mind ideas coming from different philosophical traditions as well as ideas and empirical data coming from scientific research. (shrink)

In this paper we show how a realistic normative democratic theory can work within the constraints set by the most pessimistic empirical results about voting behaviour and elite capture of the policy process. After setting out the empirical evidence and discussing some extant responses by political theorists, we argue that the evidence produces a two-pronged challenge for democracy: an epistemic challenge concerning the quality and focus of decision-making and an oligarchic challenge concerning power concentration. To address the challenges we then (...) put forward three main normative claims, each of which is compatible with the evidence. We start with a critique of the epistocratic position commonly thought to be supported by the evidence. We then introduce a qualified critique of referenda and other forms of plebiscite, and an outline of a tribune-based system of popular control over oligarchic influence on the policy process. Our discussion points towards a renewal of democracy in a plebeian but not plebiscitarian direction: Attention to the relative power of social classes matters more than formal dispersal of power through voting. We close with some methodological reflections about the compatibility between our normative claims and the realist program in political philosophy. (shrink)

This paper concentrates on the basic properties of ''consciousness'' that temporal coding is postulated to relate to. A description of phenomenal consciousness based on what introspection tells us about its contents is offered. This includes a consideration of the effect of various brain lesions that result in cortical blindness, apperceptive and associative agnosia, and blindsight, together with an account of the manner in which sight is regained after cortical injuries. I then discuss two therories of perception-Direct Realism (...) and the Representative Theory. This includes a discussion of the concept of the body-image, phantom limbs, the alleged projection of sensations, the ontological status of phenomenal space, the homunculus argument, the validity of topographic coding, the difference between the stimulus field and the visual field, and two theories of brain-mind relationship-the Identity Theory and the Bohr-Heisenberg theory of brain-mind complementarity. Finally I suggest that the binocular rivalry obtained in the case of the stroboscopic patterns that result from intermittent photic stimulation of one eye, when used in animal expeiments with unit recording, offers a good experimental method of investigating the binding problem. (shrink)

Naïve realism, often overlooked among philosophical theories of perception, has in recent years attracted a surge of interest. Broadly speaking, the central commitment of naïve realism is that mind-independent objects are essential to the fundamental analysis of perceptual experience. Since the claims of naïve realism concern the essential metaphysical structure of conscious perception, its truth or falsity is of central importance to a wide range of topics, including the explanation of semantic reference and representational content, the (...) nature of phenomenal consciousness, and the basis of perceptual justification and knowledge. One of the greatest difficulties surrounding discussions of naïve realism, however, has been lack of clarity concerning exactly what affirming or denying it entails. In particular, it is sometimes unclear how naïve realism is related to the claim that perceptual experience is in some sense direct or unmediated, and also to what extent the view is compatible with another widely discussed thesis in the philosophy of perception, the claim that perceptual experiences are states with representational content. In this essay, I discuss how recent work on these issues helps to clarify both the central commitments of naïve realism, as well as its relation to representationalist theories of perception. Along the way, I will attempt to shed light on the different ways in which each approach tries to address the various theoretical challenges facing a philosophical theory of perception, and also to assess the prospects for views that attempts to combine features of each approach. (shrink)

Anyone familiar with some of Dewey’s major works knows that they are highly critical of nearly all that has traditionally passed under the name of “epistemology” or “theory of knowledge”. Even a casual reading of a few chapters of Reconstruction in Philosophy, The Quest for Certainty or Experience and Nature reveals Dewey’s iconoclasm toward “that species of confirmed intellectual lock-jaw called epistemology”. The source of this attitude is Dewey’s belief that all theories of knowledge previous to his own are (...) class='Hi'>based upon an unexamined and mistaken conception of knowing. This is that knowing is a relation between a knower and a thing known, in which the knower is essentially a viewer or passive spectator of the thing known. Knowing is conceived on the analogy of seeing an object; it is, as Dewey says, “modeled on what [is] supposed to take place in the act of vision”. For Dewey, it is not a matter of consequence how the two members of the knowledge-relation are described. Whether the knower is identified with the self and the thing known with a material thing, or the knower with the mind and the thing known with an idea or collection of sense-data, or the knower with the knowing “subject” and the thing known with the “object”, is not important. Dewey’s contention is that no matter how one characterizes the spectator and the thing known, this conception of knowing is fundamentally mistaken, mythological. He collectively dubs all theories which share it “The Spectator Theory of Knowledge”. This common label reflects the fact that for Dewey theories as different as direct realism and epistemological dualism, British empiricism and continental rationalism, are simply variations on the same unlikely theme. (shrink)

Robert Hanna works out a unified contemporary Kantian theory of rational human cognition and knowledge. Along the way, he provides accounts of intentionality and its contents, sense perception and perceptual knowledge, the analytic-synthetic distinction, the nature of logic, and a priori truth and knowledge in mathematics, logic, and philosophy. This book is specifically intended to reach out to two very different audiences: contemporary analytic philosophers of mind and knowledge, and contemporary Kantian philosophers or Kant-scholars. At the same time, it rides (...) the crest of a wave of exciting and revolutionary emerging new trends and new work in the philosophy of mind and epistemology, with a special concentration on the philosophy of perception. What is revolutionary in this new wave are its strong emphases on action, on cognitive phenomenology, on disjunctivist direct realism, on embodiment, and on sense perception as a primitive and proto-rational capacity for cognizing the world. Hanna makes a fundamental contribution to this philosophical revolution by giving it a specifically contemporary Kantian twist, and by pushing these new lines of investigation radically further. (shrink)

HOW MUCH DO WE LEARN ABOUT HALLUCINATIONS FROM THOUGHT-EXPERIMENTS? The idea that our sensory experience cannot serve as a ground for knowledge lingers on within philosophical thinking from its very beginning. Since even the ancient sceptics argued against the possibility of knowledge based on sense perception due to its potentially illusory or hallucinatory character, it seems reasonable to address the issue of hallucination itself. The purpose of this paper is to discuss upon the philosophical account of hallucination present in (...) current debates. I will mainly work on the so-called ‘argument from hallucination’ which provides a prevalent objection both against the direct realism theory of perception, and externalist theories of content of experience. My primary intention will be to single out the ontological claims concerning hallucinatory experience that constitute the core of the argument from hallucination. Moreover, the legitimacy of philosophical theses concerning hallucination will be discussed both by means of philosophical analysis, and in the light of chosen empirical findings. (shrink)

Mandelbaum adopted a middle course between physicalistic scientific realism and phenomenalistic "ordinary language" direct realism. He affirmed the relevance of scientific knowledge for epistemology, but did not attempt to reduce the content of perception to physical properties. Rather, he developed a critical direct realism, according to which we see bodies by means of having phenomenal experience. This phenomenal experience was not, however, to be equated with the sense-data of the usual representative realism. Rather, (...) it was a perception of material objects by means of their qualities. In this way, he agreed with the phenomenological position of the Gestalt psychologist Wolfgang Koehler, who rejected the view that sense-data by themselves could provide an epistemic basis for knowledge claims. Koehler's position, too, may be described as a critical realism. As would Mandelbaum, he sought to give proper due to the phenomenal while also affirming its basis in a physical world of objects and brain processes. In its insistence on the reality and scientific respectability of the phenomenal, the critical realism of Mandelbaum and Koehler is distinct from the contemporaneous physicalism of Place and Smart. (shrink)

Based on evidence that learning new characters through handwriting leads to better recognition than learning through typing, some authors proposed that the graphic motor plans acquired through handwriting contribute to recognition. More recently two alternative explanations have been put forward. First, the advantage of handwriting could be due to the perceptual variability that it provides during learning. Second, a recent study suggests that detailed visual analysis might be the source of the advantage of handwriting over typing. Indeed, in that (...) study, handwriting and composition –a method requiring a detailed visual analysis but no specific graphomotor activity– led to equivalent recognition accuracy, both higher than typing. The aim of the present study was to assess whether the contribution of detailed visual analysis is observed in preschool children and to test the variability hypothesis. To that purpose, three groups of preschool children learned new symbols either by handwriting, typing, or composition. After learning, children performed first a four-alternative recognition task and then a categorization task. The same pattern of results as the one observed in adults emerged in the four-alternative recognition task, confirming the importance of the detailed visual analysis in letter-like shape learning. In addition, results failed to reveal any difference across learning methods in the categorization task. The latter results provide no evidence for the variability hypothesis which would predict better categorization after handwriting than after typing or composition. (shrink)

An irrealist conception of a given region of discourse is the view that no real properties answer to the central predicates of the region in question. Any such conception emerges, invariably, as the result of the interaction of two forces. An account of the meaning of the central predicates, along with a conception of the sorts of property the world may contain, conspire to show that, if the predicates of the region are taken to express properties, their extensions would have (...) to be deemed uniformly empty. The question then becomes whether the predicates are best understood as expressing properties, and hence as founded on error, or whether they ought to be understood along non-factualist lines.z Historically, irrealist models were developed primarily in connection with evaluative discourse, although as physicalism has flourished and as reductionist programs have failed, their application has been extended to many other domains. Indeed, it is one of the more influential suggestions in contemporary philosophy of mind that they apply even to ordinary belief/desire psychology. A correct understanding of the semantics and metaphysics of content-based psychology leaves us, so the proponents of the in-. (shrink)

The senses present their content in the form of images, three-dimensional arrays of located sense features. Peacocke’s “scenario content” is one attempt to capture image content; here, a richer notion is presented, sensory images include located objects and features predicated of them. It is argued that our grasp of the meaning of these images implies that they have propositional content. Two problems concerning image content are explored. The first is that even on an enriched conception, (...) image content has certain expressive limitations. In particular, it cannot express absolute location and time (as opposed to spatiotemporal relations) or logical complexity. Yet, perceptual experience does seem to express certain absolute locations—namely, here and now. How can it do so? Secondly, image content cannot exhaust the significance of perceptual states. This is proved by noting that perception, memory, and anticipation can have the same image content. Yet they have different significance. These problems show that some of the significance of sensory states comes from outside the image. (shrink)

Chasing Reality deals with the controversies over the reality of the external world. Distinguished philosopher Mario Bunge offers an extended defence of realism, a critique of various forms of contemporary anti-realism, and a sketch of his own version of realism, namely hylorealism. Bunge examines the main varieties of antirealism - Berkeley's, Hume's, and Kant's; positivism, phenomenology, and constructivism - and argues that all of these in fact hinder scientific research. Bunge's realist contention is that genuine explanations in (...) the sciences appeal to causal laws and mechanisms that are not directly observable, rather than simply to empirical generalisations. Genuine science, in his view, is objective even when it deals with subjective phenomena such as feelings of fear. This work defends a realist view of universals, kinds, possibilities, and dispositions, while rejecting contemporary accounts of these that are couched in terms of modal logic and 'possible worlds.'. (shrink)

I argue that assertoric content functions as a means for us to track the responsibilities undertaken by communicators, and that distinctively assertoric commitments are distinguished by being generated directly in virtue of the words the speaker uses. This raises two questions: (a) Why are speakers responsible for the content thus generated? (b) Why is it important for us to distinguish between commitments in terms of their manner of generation? I answer the first question by developing a novel responsibility (...) based metasemantics. I answer the second by reference to the conflicting pressures governing the resources we have available for appraising speech. (shrink)

Initially, Realism is related to perception and its intentionality, And perception is analyzed as a form of acquaintance, Or intuition, A direct cognitive relation to its object. Then several commitments to realism are detailed in the phenomenological content of everyday perception. At issue is internal, As opposed to external, Realism, In a sense defined. The demonstrative content of perception (i see "this object (visually before me)") contains a commitment to a causal relation between the (...) perceptual experience and the object perceived, Hence a commitment to the object's independence from the experience, Hence realism. The content of a perception typically includes as well other implicit commitments to other "conditions of the possibility" of perceptual experience. (shrink)

Critical realism is a frequently mentioned, but not very well-known, late nineteenth-/early twentieth-century philosophical tradition. Having its roots in Kantian epistemology, critical realism is best characterized as a revisionist approach toward the original Kantian doctrine. Its most outstanding thesis is the idea that Kantian things-in-themselves are knowable. This idea was—at least implicitly—suggested by thinkers such as Alois Riehl, Wilhelm Wundt, and Oswald Külpe. Interestingly enough, the philosophical position of the early Moritz Schlick stands in the critical realist tradition (...) as well. As will be outlined in the course of this paper, both Schlick’s magnum opus General Theory of Knowledge (1918) and his seminal Space and Time in Contemporary Physics (1917) are based on the assumption that the objects of science are relations and that relations have the status of Kantian things-in-themselves. By way of conclusion, I shall point out that this— more or less directly—leads to the current debate over ‘structural’ realism. (shrink)

The paper is devoted to Richard Rorty’s thought, with the aim of exploiting a certain contention of his and directing it, as it were, against Rorty himself. Here is the contention: he thinks that – when it comes to metaphysical questions such as realism and anti-realism – the only kind of argument a pragmatist has at her disposal is rhetorical. Following the lines of the well-known wager Blaise Pascal laid on the belief in the existence of God, I (...) will try to show that the realist can avail herself of a rhetorical argument in favor of her view which is more convincing than any rhetorical argument of a Rortyan kind, while abiding by the Rortyan maxim according to which ‘What has no bearing on our practice, shouldn’t have a bearing on philosophy’. This will allow me to challenge Rorty standing on his home ground. (shrink)

Epistemic Indirect Realism is the position that justification for contingent propositions about the extra-mental world requires an inference based on a subjective, experiential mental state. One objection against EIR is that it runs contrary to common sense and practice; in essence, ordinary people do not form beliefs about things in the external world on the basis of experiential mental states. This objection implies EIR is contrary to ordinary experience, impractical, and leads to scepticism. In this paper, I will (...) defend EIR against this objection by distinguishing EIR based on conceptual awareness and non-conceptual awareness. In particular, I will argue that direct acquaintance provides sufficient awareness that can explain how ordinary folks are capable of forming justified beliefs about the external world in a way consistent with EIR. Overall, I present a framework for showing that EIR can satisfy ordinary epistemic practices without betraying human nature or over-intellectualizing the required epistemic standards for possessing a justified belief. (shrink)

In order to examine the fit between realism and science, one needs to address two issues: the unit of science question (realism about which parts of science?) and the contents of realism question (which realism about science?). Answering these questions is a matter of conceptual and empirical inquiry by way local case studies. Instead of the more ordinary abstract and global scientific realism, what we get is a doubly local scientific realism based on (...) a bottom-up strategy. Representative formulations of the former kind are in terms of the truth and reality of the posits of current science, in terms of warranted belief, in terms of mind-independent unobservable entities. Using illustrations mainly from the social sciences, doubly local scientific realism denies the global applicability of such formulations and seeks to make adjustments in their elements in response to information about local units of science: It is sufficient for a realist to give the existence of an entity (and the truth of a theory) a chance, while in some areas we may be in s position to make justified claims about actual existence (and truth). Logical inquiry-independent existence is sufficient for the social and human sciences, while mind-independence will be fine for many other domains. It should not be insisted that the theoretical posits of realist science be strict unobservables in all areas: most theoretical posits of the social sciences are idealized commonsensibles, such as elements in folk psychology. Unsurprisingly, this sort of local strategy will create space for realism that is able to accommodate larger areas of science without sacrificing traditional realist intuitions. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:61 PROJECTIONISM, REALISM, AND HUME'S MORAL SENSE THEORY* Introduction The character of Hume's moral theory is currently a topic of considerable discussion.1 We find in the recent literature essentially two sorts of interpretation of Hume's theory. On the one side there is the view that, for Hume, the distinction between virtue and vice is reducible to the moral sentiments of approval and disapproval. Associated with this view (...) is the further claim that Hume ascribes to us the belief that virtue and vice exist as the counterparts to these sentiments; and, in addition, that this belief is, for Hume, a mistaken one. For reasons which will become obvious this may be described as the Projectionist account of Hume. On the other side, there is the attempt to represent Hume's moral theory as a form of realism, i.e., a theory according to which there are moral properties belonging to actions, or the agents who perform them, which provide objective correlates of the feelings which those actions, or the agents concerned, induce in us as spectators. Now clearly an important part of what is at stake between these different interpretations is the question of how seriously we should take Hume's own description of this theory as one according to which moral distinctions are derived from a moral sense. It is characteristic of the Projectionist interpretation to suggest that 'sense' is equivalent here to 'sentiment', and, indeed, that Hume's moral sense theory is tantamount to the denial that there is anything in Objects' themselves corresponding to our moral (or aesthetic) sentiments. The Realist interpretation, on the other hand, stresses the importance of Hume's references in 62 the Treatise to a moral (and aesthetic) sense, and the precedent provided in this respect by Hutcheson; and it takes seriously the idea that this sense enables us to become acquainted, via the sentiments involved, with the qualities of virtue and vice. My own interest in these different interpretations concerns their disagreement about the way in which we should understand Hume's notion of a moral sense. I wish to argue against the Projectionist interpretation, and its dismissive treatment of Hume's references to a moral sense, though it is a further question whether the view of Hume which emerges deserves the name of 'Realism'. 1. The Projectionist Interpretation It seems clear that the notion of a moral sense cannot be intended literally, i.e., as though there is a form of moral sense-perception strictly comparable to the modes of perception provided by the external senses. It is, presumably, part of the definition of a sense that it is a faculty whose function depends upon stimulation of an organ or, at least, receptors peculiar to that sense; and, furthermore, in the case of the various external senses there is -- except for the contact sense of touch -- a distinctive medium of perception. For both these reasons moral sense theorists can only be proposing an analogy with the external senses. In Hume's case in particular, however, there appear to be reasons for doubting whether the analogy can be more than superficial. Perhaps the most obvious of these lies with Hume's insistence on the action-guiding character of the distinction between moral good and evil (see e.g., T 437-462). For it seems clear that sense-perceptions g as such can have no direct influence upon our actions. 63 Then there is Hume's denial that morality consists in any matter of fact (T 468; EPM 292). If virtue and vice are to be considered the objects of some form of moral sense-perception their existence presumably does become a matter of fact. Finally, a moral sense theory seems to imply that judgements of virtue and vice are straightforwardly true or false, according to whether or not we perceive veridical Iy; while Hume's own discussion sometimes points to a non-propositional view of moral utterances as the expression of certain feelings or sentiments. These last two points remind us that Hume often appears to deny that values belong as intrinsic properties to the objects evaluated. This is obviously true of the following, much quoted, passage: Take any... (shrink)

Case-based instruction is a stable feature of ethics education, however, little is known about the attributes of the cases that make them effective. Emotions are an inherent part of ethical decision-making and one source of information actively stored in case-based knowledge, making them an attribute of cases that likely facilitates case-based learning. Emotions also make cases more realistic, an essential component for effective case-based instruction. The purpose of this study was to investigate the influence of emotional (...) case content, and complementary socio-relational case content, on case-based knowledge acquisition and transfer on future ethical decision-making tasks. Study findings suggest that emotional case content stimulates retention of cases and facilitates transfer of ethical decision-making principles demonstrated in cases. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:61 PROJECTIONISM, REALISM, AND HUME'S MORAL SENSE THEORY* Introduction The character of Hume's moral theory is currently a topic of considerable discussion.1 We find in the recent literature essentially two sorts of interpretation of Hume's theory. On the one side there is the view that, for Hume, the distinction between virtue and vice is reducible to the moral sentiments of approval and disapproval. Associated with this view (...) is the further claim that Hume ascribes to us the belief that virtue and vice exist as the counterparts to these sentiments; and, in addition, that this belief is, for Hume, a mistaken one. For reasons which will become obvious this may be described as the Projectionist account of Hume. On the other side, there is the attempt to represent Hume's moral theory as a form of realism, i.e., a theory according to which there are moral properties belonging to actions, or the agents who perform them, which provide objective correlates of the feelings which those actions, or the agents concerned, induce in us as spectators. Now clearly an important part of what is at stake between these different interpretations is the question of how seriously we should take Hume's own description of this theory as one according to which moral distinctions are derived from a moral sense. It is characteristic of the Projectionist interpretation to suggest that 'sense' is equivalent here to 'sentiment', and, indeed, that Hume's moral sense theory is tantamount to the denial that there is anything in Objects' themselves corresponding to our moral (or aesthetic) sentiments. The Realist interpretation, on the other hand, stresses the importance of Hume's references in 62 the Treatise to a moral (and aesthetic) sense, and the precedent provided in this respect by Hutcheson; and it takes seriously the idea that this sense enables us to become acquainted, via the sentiments involved, with the qualities of virtue and vice. My own interest in these different interpretations concerns their disagreement about the way in which we should understand Hume's notion of a moral sense. I wish to argue against the Projectionist interpretation, and its dismissive treatment of Hume's references to a moral sense, though it is a further question whether the view of Hume which emerges deserves the name of 'Realism'. 1. The Projectionist Interpretation It seems clear that the notion of a moral sense cannot be intended literally, i.e., as though there is a form of moral sense-perception strictly comparable to the modes of perception provided by the external senses. It is, presumably, part of the definition of a sense that it is a faculty whose function depends upon stimulation of an organ or, at least, receptors peculiar to that sense; and, furthermore, in the case of the various external senses there is -- except for the contact sense of touch -- a distinctive medium of perception. For both these reasons moral sense theorists can only be proposing an analogy with the external senses. In Hume's case in particular, however, there appear to be reasons for doubting whether the analogy can be more than superficial. Perhaps the most obvious of these lies with Hume's insistence on the action-guiding character of the distinction between moral good and evil (see e.g., T 437-462). For it seems clear that sense-perceptions g as such can have no direct influence upon our actions. 63 Then there is Hume's denial that morality consists in any matter of fact (T 468; EPM 292). If virtue and vice are to be considered the objects of some form of moral sense-perception their existence presumably does become a matter of fact. Finally, a moral sense theory seems to imply that judgements of virtue and vice are straightforwardly true or false, according to whether or not we perceive veridical Iy; while Hume's own discussion sometimes points to a non-propositional view of moral utterances as the expression of certain feelings or sentiments. These last two points remind us that Hume often appears to deny that values belong as intrinsic properties to the objects evaluated. This is obviously true of the following, much quoted, passage: Take any... (shrink)

This paper focuses on the linguistic evidence base provided by proponents of conceptualism (e.g., Chomsky) and rational realism (e.g., Katz) and challenges some of the arguments alleging that the evidence allowed by conceptualists is superior to that of rational realists. Three points support this challenge. First, neither conceptualists nor realists are in a position to offer direct evidence. This challenges the conceptualists’ claim that their evidence is inherently superior. Differences between the kinds of available indirect evidence will be (...) discussed. Second, at least some of the empirical evidence provided by the conceptualist is flawed. It is not obtained independently of theoretical commitments, alternative interpretations have not been ruled out, and some of the thought experiments intended to extend the evidence base are conceptually flawed. Third, the widely held assumption that rational realism disallows empirical evidence relevant to linguistics is dubious. It will be shown that the limitation imposed by rational realism concerns strictly formal linguistics. The rationalist realist has no reason to impose any restriction on the evidence relevant to psycholinguistics. I conclude that it is a mistake to dismiss realism based on the assumption that it imposes undue restrictions on evidence that is relevant to linguistics. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Realism, Universalism, and the Science of the HumanAmanda Anderson (bio)Satya P. Mohanty. Literary Theory and the Claims of History: Postmodernism, Objectivity, Multicultural Politics. Ithaca: Cornell UP, 1997.Martha C. Nussbaum. Cultivating Humanity: A Classical Defense of Reform in Liberal Education. Cambridge: Harvard UP, 1997.It is arguably a peculiar fact that a book announcing itself as a defense of objectivity and realism would begin by assuring readers of (...) the political efficacy of its theories. After all, the critique of objectivity and realism within progressive cultural criticism of the past several decades has taken for granted that claims to objectivity and realism are suspicious in part because of their pretense to value-neutrality. But Satya P. Mohanty’s ambitious and wide-ranging Literary Theory and the Claims of History joins with other recent attempts to lay claim to a refurbished realism that not only overcomes variously construed limitations of postmodernism but fully answers to the charges leveled against “traditional” objectivity or “naïve” realism [see Alcoff; Livingston]. Such a project can in part be analyzed against a broader critique of postmodernism and poststructuralism advanced through reconsideration of Enlightenment ideals, including, most prominently, the ideals of universalism and its less abstract cousin, cosmopolitanism [see Anderson]. The reconstructions of both universalism and realism have claimed a greater intellectual integrity and coherence than the forms of postmodernism that they challenge and a more promising ethico-political vision, one that more convincingly acknowledges the place and claims of marginalized others. These reconstructive projects thus fundamentally challenge the familiar postmodernist idea that claims to universalism or objectivity themselves enact forms of privilege or exclusion that inherently disable any properly egalitarian or nonviolent relation to others.Mohanty would appear to combine the universalist and realist ambitions, insofar as he asserts a moral position based on Kantian notions of autonomy and dignity at the same time that, in epistemological terms, he elaborates a “postpositivist realist alternative.” Maintaining that the critique of objectivity within postmodernism is propped up by an outdated understanding of scientific method and theory, he argues that the more sophisticated theories within current philosophy of science elaborate epistemological models that are fully compatible with a generalized hermeneutical method, precisely because they acknowledge both the theory-laden nature of all inquiry and the larger social and historical contexts of knowledge and experience. Before elaborating this realist alternative, however, Mohanty situates his project by forwarding a number of critiques of “constructivist postmodernism,” critiques that enable us to better gauge the motivations behind his work. Foregrounded at the start are what Mohanty sees as the [End Page 3] harmful political and ethical consequences of relativism, skepticism, and constructivism. According to Mohanty, while the claims for diversity and difference in the 1960s “had a political edge,” at this historical moment they are used primarily for conservative ends, via a state-sponsored bland multiculturalism that diverts attention from the blunt material issues of race politics [17]. In broader ethico-political terms, moreover, relativist arguments that display skepticism toward the possibilities for rational exchange between variously construed collectivities and cultures lead not to a proper respect for the other but rather to indifference. As Mohanty puts it, to deny the possibility of “general criteria” for “interpretive validity” is “to assert that all spaces are equivalent, that they have equal value, that since the lowest common principle of evaluation is all that I can invoke, I cannot—and consequently need not—think about how your space impinges on mine or how my history is defined together with yours. If that is the case, I may have started by declaring a pious political wish, but I end by denying that I need to take you seriously” [131; Mohanty’s emphasis].Beyond these harmful consequences, however, lies a more fundamental problem. In its monolithic assault on Western Reason and the unified subject of humanism, constructivist postmodernism has deprived itself of any coherent account of human agency and rationality. Without a philosophical anthropology establishing the “capacities, tasks, and limits that might make up a specifically human existence,” Mohanty argues, it becomes impossible to account properly for cultural practices and historical agency, for the self-understanding of cultures and the historical transformations they enact [138... (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)