Although it is widely recognized that perceptual experience confers justification on the beliefs it gives rise to, it is unclear how its epistemic value should be properly characterized. Liberals hold, and conservatives deny, that the justification conditions of perceptual beliefs merely involve experiences with the same content. The recent debate on this question has, however, seen further fragmentations of the positions involved with the disputants seeking to identify intermediate positions between liberalism and conservatism. In this paper, I suggest (...) a framework to account for the differences and similarities of the positions within the liberalism/conservatism debate. More importantly, I suggest that, instead of focusing on one particular species of conservatism, we should recognize varieties of conservatism. My conclusion is that no theory of justification need be conservative or liberal tout court. Whether a theory of justification is liberal or conservative depends on which dimension of evaluation is taken to be salient. The implications of this finding for the liberalism/conservatism debate are then investigated. (shrink)

In “Perceptual Entitlement, Reliabilism, and Scepticism,“ Frank Barel explores some important and under-discussed questions regarding the relation between Tyler Burge's views on perceptual entitlement, on the one hand, and the problem of skepticism, on the other. In this note, I would like to comment on a couple of aspects of Barel's article. First, I have my own take, different from Barel's, on the question of whether we can sketch an a priori anti-skeptical argument proceeding from perceptual (...) anti-individualism. Second, I discuss the question whether Barel's “Rationalistic“ anti-skeptical argument is successful. (shrink)

: Thoreau's journal contains a number of passages which explore the nature of perception, developing a response to skeptical doubt. The world outside the human mind is real, and there is nothing illusory about its perceived beauty and meaning. In this essay, I draw upon the work of Stanley Cavell (among others) in order to frame Thoreau's reflections within the context of the skeptical questions he seeks to address. Value is not a subjective projection, but it also cannot be perceived (...) without the appropriate kind of emotional orientation or attunement toward the world: that is, an attitude of trust or acceptance. Without this affective receptivity, or "perceptual faith," our knowledge of reality is limited. The beliefs we hold onto in the face of objective uncertainty establish the framework within which we make particular evaluations, and in this sense they are a necessary condition of practical reason. Every understanding has its mood. (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.

According to a popular view, emotions are perceptual experiences of some kind. A common objection to this view is that, by contrast with perception, emotions are subject to normative reasons. In response, perceptualists have typically maintained that the fact that emotions can be justified does not prevent them from being perception-like in some fundamental way. Given the problems that this move might raise, a neglected alternative strategy is to deny that there are normative reasons for emotions in the first (...) place. The aim of this paper is to offer the first sustained discussion of arguments for skepticism about normative reasons for emotions. I argue that none of the obvious ways to argue against reasons for emotions casts genuine doubt on them, and thus that unless another argument is given an appeal to reasons for emotions continues to constitute a legitimate strategy to assess various theories of emotion. (shrink)

In this chapter, I present and explore various arguments for skepticism that are related to memory. My focus will be on the aspects of the arguments that are unique to memory, which are not shared, for example, by the more often explored skeptical arguments related to perception. -/- Here are some interesting upshots. First, a particular problem for justifiably concluding that one's memory is reliable is that any reasoning in favor of this conclusion will either result in epistemically circularity (...) or not be sufficient to justify the conclusion. Second, since many beliefs stored in memory do not appear to be based on evidence, it might also appear to follow that they are not justified. Third, although many stored memory beliefs are not based on stored memory experiences in the same way that perceptual beliefs are based on perceptual experiences, skeptical scenarios loom just as problematically for memory beliefs as they do for perceptual beliefs. (shrink)

A claimed benefit of epistemic externalism is that it alone can avoid skepticism. Most epistemic externalists, however, allow a residual amount of internalism in terms of a defeasibility condition. The paper argues that this internal condition is sufficient for skeptics to cast doubt on many claims to justified belief about perceptual matters about the world. Furthermore, the internal defeasibility condition also opens the door to a darker form of skepticism; skeptical dogmatism, which maintains that many of our (...) perceptually based beliefs are probably false. Thus, the claimed benefits of externalism in avoiding skepticism are greatly exaggerated. (shrink)

According to a traditional Cartesian epistemology of perception, perception does not provide one with direct knowledge of the external world. Instead, your immediate perceptual evidence is limited to facts about your own visual experience, from which conclusions about the external world must be inferred. Cartesianism faces well-known skeptical challenges. But this chapter argues that any anti-Cartesian view strong enough to avoid these challenges must license a way of updating one’s beliefs in response to anticipated experiences that seems diachronically irrational. (...) To avoid this result, the anti-Cartesian must either license an unacceptable epistemic chauvinism, or else claim that merely reflecting on one’s experiences defeats perceptual justification. This leaves us with a puzzle: Although Cartesianism faces problems, avoiding them brings a new set of problems. (shrink)

Michael Bergmann's Radical Skepticism and Epistemic Intuition develops a response to radical skepticism inspired by commonsense philosophers, such as Reid and Moore. Bergmann argues against radical skepticism on the grounds of its conflicting with strongly-held "epistemic intuitions" about the "epistemic value or goodness” of our particular perceptual, recollective, introspective and a priori beliefs. I press concerns about whether Bergmann's "intuitionist particularist" response can diagnose the source of skepticism, and argue that his methodology turns out to (...) itself be strikingly skeptical. (shrink)

Pragmatist responses to skepticism about empirical justification have mostly been underwhelming, either presupposing implausible theses like relativism or anti-realism, or else showing our basic empirical beliefs to be merely psychologically inevitable rather than rationally warranted. In this paper I defend a better one: a modified version of an argument by Wilfrid Sellars that we are pragmatically warranted in accepting that our perceptual beliefs are likely to be true, since their likely truth is necessary for the satisfaction of our (...) goal of effective agency. On the version of the argument I defend, the great good for human life of control over our empirical circumstances renders our goal of effective agency reasonable. But only if our perceptual beliefs are likely to be true—and only if we accept that this is so, assuming it as a premise for inference and a guide for action—will the success of our actions be due to our effective agency, not mere luck. Since we’re warranted in taking the necessary means to our reasonable ends, we’re warranted in accepting that our perceptual beliefs are generally justified, and so that skepticism about empirical justification is false. (shrink)

Some philosophers claim that perception immediately and prima facie justifies belief in virtue of its phenomenal character (Huemer, Skepticism and the veil of perception. Rowman & Littlefield, Lanham, 2001; Pryor, There is immediate justification. In: Steup M, Sosa E (eds) Contemporary debates in epistemology. Blackwell, London (2014), pp. 181–202, 2005). To explain this special justificatory power, some appeal to perception’s presentational character: the idea that perceptual experience presents its objects as existing here-and-now (Chudnoff, Intuition. Oxford University Press, Oxford, (...) 2013; Berghofer, Husserl Stud 34(2):145–170, 2018). As some philosophers have noted, if perception justifies in virtue of its presentational character alone, the kind of content perception has should not matter for perceptual justification; more precisely, it should not matter whether perceptual content is propositional or not (e.g., Smithies, The epistemic role of consciousness. Oxford University Press, Oxford, 2019; Kriegel, Australas J Philos, 2021). However, most philosophers tend to resist this conclusion, holding that perception must be propositional in order to justify, on the ground that all our model of justification are propositional (e.g., Gauker, Philos Perspect 26(1):19–50, 2012). This paper challenges this claim. The paper consists of a negative and a positive part. In the negative part, I discuss and reject the master argument for the propositionality of perception; the conclusion is that propositional content is neither sufficient nor necessary to explain perception’s justificatory power. In the positive part, I take this conclusion seriously and outline an objectual model of perceptual justification. I define objectual attitudes as mental states whose content is not a full proposition, but a sub-propositional representational item, such as the representation of objects, properties, and kinds (Grzankowski and Montague, Non-propositional intentionality. Oxford University Press, Oxford, 2018), and show that it is plausible that some perceptions and some beliefs are attitudes of this kind. I then argue that objectual perceptual experiences have the right kind of phenomenal character and the right kind of structure to serve for immediate prima facie justification. I conclude by defending my objectual model from three objections. (shrink)

Disjunctivism is the view that perceptual experience is either constituted by fact in the world or mere appearance. This view is said to be able to guarantee our cognitive contact with the world, and thus remove a crucial “prop” upon which skepticism depends. This paper has two aims. First, it aims to show that disjunctivism is a solution to Cartesian skepticism. Cartesian skepticism is an epistemological thesis, not an ontological one. Therefore, if there is an external (...) world, we may well undergo a veridical experience, and thus we can take advantage of disjunctivism to adopt an anti-evidential-skepticism strategy to counter Cartesian skepticism. Second, this paper argues that disjunctivism fails to solve Pyrrhonian skepticism. To counter Pyrrhonian skepticism, one has to give reasons both for his belief and for his believing. But disjunctivism can only account the former, that is, the reason for the content of perceptual belief. Given that one’s experience in good case and bad case is subjectively indistinguishable, one cannot just use his experience to justify his believing. This shows that disjunctivism cannot meet the requirement to provide an adequate account for reflective knowledge. (shrink)

One of the most important and perennially debated philosophical questions is whether we can have knowledge of the external world. Butchvarov here considers whether and how skepticism with regard to such knowledge can be refuted or at least answered. He argues that only a direct realist view of perception has any hope of providing a compelling response to the skeptic and introduces the radical innovation that the direct object of perceptual, and even dreaming and hallucinatory, experience is always (...) a material object, but not necessarily one that actually exists. This leads him to a metaphysics in which reality is ultimately constructed by human decisions out of objects that are ontologically more basic but which cannot be said in themselves to be either real or unreal. (shrink)

A sympathetic exegesis of themes in Barry Stroud's later writings, with a particular emphasis on the role of a certain conception of "perceptual experience" in generating the skeptical challenge to our knowledge of the external world. The resultant morals are brought to bear on John McDowell's evolving account of the role of contentful "experiences" in providing for empirical thought. For Stroud's response to this essay (and others) see: http://philosophicalskepticism.org/skepsis/numero-14/.

I stipulate and motivate the overlooked problem of demarcating radical skeptics (perceptual and moral) from mentally disordered persons, given that both deny that they know ordinary Moorean propositions (e.g., that they have hands or that killing for fun is morally wrong). Call this ‘the demarcation problem’. In response to the demarcation problem, I develop a novel way to demarcate between mentally disordered persons and radical skeptics in an extensionally adequate way that saves the appearance that radical skeptics are not (...) mentally disordered persons (at least not typically). Finally, I examine how a Moorean, non-skeptical epistemologist would compare radical skeptics with the mentally disordered in terms of what Plantinga calls internal and external rationality. Perhaps surprisingly, by Moorean lights, the mentally disordered fare better than the radical skeptic in terms of (internal) rationality. The upshot is that for Mooreans skeptical philosophy is more of an epistemic evil than mental disorder. (shrink)

The paper explores the anti-skeptical bearing of the kind of hinge epistemology I have developed in Extended Rationality. A Hinge Epistemology. It focuses, in particular, on the moderate account of perceptual justification, the constitutive response put forward against Humean skepticism, and the denial of the unconditional validity of the Closure Principle, which is key in rebutting Cartesian skepticism. Along the way, a comparison with Wittgenstein's own views in on Certainty and with the positions held by other prominent (...) hinge epistemologists, particularly Moyal-Sharrock, Pritchard and Wright, is provided. (shrink)

May argues that moral skepticism is less plausible than perceptual skepticism if it’s formulated using epistemic closure. In this paper, I argue we should be skeptical of the implausibility thesis. Moral skepticism can be formulated using closure if we combine moral nihilism with a properly formulated evolutionary scenario. Further, I argue that pace May, the phenomenon of ‘imaginative resistance’ isn’t an issue for the moral skeptic; she has an evolutionary explanation of the phenomenon. Thus, we should (...) be skeptical of the implausibility thesis. (shrink)

The paper explains what disjunctivism is and explores its implications for skepticism. Following an account of Paul Snowdon’s conception of a disjunctivist account of perceptual experience the the focus is on how disjunctivism has figured in the epistemological work of John McDowell. A conception of recognitional abilities is deployed to expand on McDowell’s position. Finally, there is consideration of whether McDowell offers a satisfactory response to skepticism, taking account of criticism’s made by Crispin Wright.

This paper explores the bearing of Tyler Burge’s notion of perceptual entitlement on the problem of scepticism. Perceptual entitlement is an external form of warrant, connected with his perceptual anti-individualism. According to his view, an individual can be entitled to a perceptual belief without having reasons warranting the belief. On the face of it, this suggests that the view may have anti-sceptical resources. In short, the question is whether Burge’s notion of perceptual entitlement allows us (...) to outright deny that we in our philosophical theory need a reason to reject the sceptical scenario. The answer to this question is ‘no’. However, as I go on to show, Burge’s position includes further resources that allow for an anti-sceptical argument. (shrink)

Locke claims that we have sensitive knowledge of the external world, in virtue of the fact that simple ideas are real, true, and adequate. However, despite his dismissive remarks about Cartesian external-world skepticism, Locke gives us little to go on as to how knowledge of the external world survives the fact of perceptual error, or even how perceptual error is possible. I argue that Locke has an in-principle problem explaining perceptual error.

A prominent response is that Cartesian skepticism is too Cartesian. It arises from outmoded views in epistemology and the philosophy of mind that we now properly reject. We can and should move on to other things. §2 takes up three broadly Cartesian themes: the epistemic priority of experience, under-determination, and the representative theory of perception. I challenge some common assumptions about these, and their connection to skepticism. §3 shows how skeptical arguments that emphasize causal considerations can avoid some (...) suspect Cartesian commitments. §4 explores the related idea that perceptual knowledge is what I call instrumental knowledge. Drawing on that connection, §5 examines a skeptical argument based on minimal assumptions, and explains why a Moorean response to it is unsatisfactory. The problem of skepticism is still with us, and it requires a substantive solution. (shrink)

Responses to skeptical arguments need to be _serious_: they need to explain not only why some premise of the argument is false, but also why the premise is _plausible_, despite being false. Moorean responses to skeptical arguments are inadequate because they are not serious: they do not explain the plausibility of false skeptical premises (Sects. 2–3). Skeptical arguments presuppose the truth of the following two claims: the requirements for epistemic justification are internalist, and these internalist requirements are never satisfied (with (...) respect to our beliefs about the external world). In this paper, I provide a serious response to the skeptic on behalf of the internalist: I explain why the claim that internalist requirements are never satisfied is plausible but false. First, I argue that the claim is plausible, but only insofar as one lacks an account of how perceptual experiences make it rational to hold beliefs about the external world (and the skeptic does lack such an account) (Sect. 4). Second, I provide such an account of experiential rationality, and I argue that in light of this account John McDowell can be understood as persuasively arguing that the claim that internalist requirements are never satisfied is false (Sects. 5–6). (shrink)

This chapter contains section titled: The Skeptic's Undoing Cartesian Certainty.

In at least some cases of justified perceptual belief, our perceptual experience itself, as opposed to beliefs about it, evidences and thereby justifies our belief. While the phenomenon is common, it is also mysterious. There are good reasons to think that perceptions cannot justify beliefs directly, and there is a significant challenge in explaining how they do. After explaining just how direct perceptual justification is mysterious, I considerMichael Huemers (Skepticism and the Veil of Perception, 2001) and (...) Bill Brewers (Perception and Reason, 1999) recent, but radically different, attempts to eliminate it. I argue that both are unsuccessful, though a consideration of their mistakes deepens our appreciation of the mystery. (shrink)

According to epistemological disjunctivism (ED), ordinary perceptual experience ensures an opportunity for perceptual knowledge. In recent years, two distinct models of this idea have been developed. For Duncan Pritchard (Epistemological disjunctivism, 2012, Oxford University Press; Epistemic angst: Radical skepticism and the groundlessness of our believing, 2012, Princeton University Press), perception provides distinctly powerful reasons for belief. By contrast, Clayton Littlejohn (Journal of Philosophical Research, 41, 201; Knowledge first, 2017, Oxford University Press; Normativity: Epistemic and practical, 2018, Oxford (...) University Press) and Alan Millar (The nature and value of knowledge: Three investigations, 2010, Oxford University Press; Philosophical Issues, 21, 332) argue for a version of ED in terms of a “knowledge first” program, on which perception directly provides knowledge, without relying on antecedent reasons or justification. Specifically, both Littlejohn and Millar argue that “reasons first” ED faces a problematic regress. In this article, I defend “reasons first” ED by arguing that experience provides a type of reason that escapes the regress. I also argue that reasons are a fundamental aspect of ED, especially in its anti-skeptical stance. (shrink)

This paper is to propose a new form of Kant’s anti-skepticism argument in light of John McDowell’s works on disjunctivism. I first discuss recent debates between McDowell and Crispin Wright on disjunctivism. I argue that Wright wrongly downplays McDowell’s disjunctivism, whose metaphysical claim that our perceptual faculties directly engage in the world has an epistemological implication that should be able to dismiss the skeptic’s imagery as fictitious. However, McDowell does not clearly offer such an argument. I will show (...) that we can derive from Kant’s Fourth Paralogism of the first edition of the Critique of Pure Reason—which many scholars regard as Kant’s implicit commitment to phenomenalism—the requisite argument that makes us able to dismiss skepticism. (shrink)

Moral skeptics maintain that we do not have moral knowledge. Traditionally they haven’t argued via skeptical hypotheses like those provided by perceptual skeptics about the external world, such as Descartes’ deceiving demon. But some believe this can be done by appealing to hypotheses like moral nihilism. Moreover, some claim that skeptical hypotheses have special force in the moral case. But I argue that skeptics have failed to specify an adequate skeptical scenario, which reveals a general lesson: such arguments are (...) not a promising avenue for moral skeptics to take. They’re ultimately weaker when applied to morality compared to perception. (shrink)

Abstract: Ernest Sosa has recently articulated an insightful response to skepticism and, in particular, to the dream argument. The response relies on two independent moves. First, Sosa offers the imagination model of dreaming according to which no assertions are ever made in dreams and no beliefs are involved there. As a result, it is possible to distinguish dreaming from being awake, and the dream argument is blocked. Second, Sosa develops a virtue epistemology according to which in appropriately normal conditions (...) our perceptual beliefs will be apt. Hence, in these conditions, we will have at least animal knowledge, and the conclusion of the dream argument is undermined. In this article, I examine various moves that the skeptic can make to resist Sosa's challenge, and I contrast the proposal to a neo-Pyrrhonian stance. In the end, there is surprisingly little disagreement about the status of ordinary perceptual beliefs in the two stances. (shrink)

How can experience provide knowledge, or even justified belief, about the objective world outside our minds? This volume presents original essays by prominent contemporary epistemologists, who show how philosophical progress on foundational issues can improve our understanding of, and suggest a solution to, this famous sceptical question.

Few philosophers believe that G. E. Moore's notorious proof of an external world can give us justification to believe that skepticism about perceptual beliefs is false. The most prominent explanation of what is wrong with Moore's proof—as well as some structurally similar anti-skeptical arguments—centers on conservatism: roughly, the view that someone can acquire a justified belief that p on the basis of E only if he has p-independent justification to believe that all of the skeptical hypotheses that undermine (...) the support lent by E to p are false. In this paper I argue that conservatism does not make trouble for Moore's proof. I do this by setting up a dilemma concerning the notion of "justification to believe" that figures in conservatism. On one understanding of justification to believe, conservatism is subject to obvious counterexamples. On another understanding of justification to believe, conservatism is consistent with Moore's "proof conferring justification upon its conclusion. Since these two understandings exhaust the logical space, the conservative indictment of Mooreanism fails. (shrink)

Is ruling out the possibility that one is dreaming a requirement for a knowledge claim? In “Philosophical Scepticism and Everyday Life” (1984), Barry Stroud defends that it is. In “Others Minds” (1970), John Austin says it is not. In his defense, Stroud appeals to a conception of objectivity deeply rooted in us and with which our concept of knowledge is intertwined. Austin appeals to a detailed account of our scientific and everyday practices of knowledge attribution. Stroud responds that what Austin (...) says about those practices is correct in relation to the appropriateness of making knowledge claims, but that the skeptic is interested in the truth of those claims. In this paper, we argue that Stroud’s defense of the alleged requirement smuggles in a commitment to a kind of internalism, which asserts that the perceptual justification available to us can be characterized independently of the circumstances in which we find ourselves. In our reading of Austin, especially of Sense & Sensibilia, he rejects that kind of internalism by an implicit commitment to what is called today a “disjunctive” view of perception. Austin says that objectivity is an aspect of knowledge, and his disjunctivism is part of an explanation of why the alleged requirement is not necessary for a knowledge claim. Since both Stroud and Austin are committed to the objectivity of knowledge, Stroud may ask which view of perceptual knowledge is correct, whether the internalist or the disjunctive. We argue that by paying closer attention to what Austin says about our practices of knowledge attribution, one can see more clearly that it is grounded not only on a conception of objectivity, but also on a conception of ourselves as information agents, a conception that is as deeply rooted as that of the objectivity of knowledge. This gives us moral and practical reasons to favor the disjunctive view of perception. (shrink)

Abstract: In Mind and World, McDowell conceives of the content of perceptual experiences as conceptual. This picture is supposed to provide a therapy for skepticism, by showing that empirical thinking is objectively and normatively constrained. The paper offers a reconstruction of McDowell's view and shows that the therapy fails. This claim is based on three arguments: 1) the identity conception of truth he exploits is unable to sustain the idea that perception-judgment transitions are normally truth conducing; 2) it (...) could be plausible only from an externalist point of view that is in tension with the view of normativity that motivates conceptualism; 3) the identity conception of truth is incompatible with McDowell's recent version of conceptualism in terms of ‘non-propositional intuitive contents’. (shrink)

There are two main questions in epistemology: What is knowledge? And: Do we have any of it? The first question asks after the nature of a concept; the second involves grappling with the skeptic, who believes that no one knows anything. This collection of original essays addresses the themes of knowledge and skepticism, offering both contemporary epistemological analysis and historical perspectives from leading philosophers and rising scholars. Contributors first consider knowledge: the intrinsic nature of knowledge -- in particular, aspects (...) of what distinguishes knowledge from true belief; the extrinsic examination of knowledge, focusing on contextualist accounts; and types of knowledge, specifically perceptual, introspective, and rational knowledge. The final chapters offer various perspectives on skepticism. Knowledge and Skepticism provides an eclectic yet coherent set of essays by distinguished scholars and important new voices. The cutting-edge nature of its contributions and its interdisciplinary character make it a valuable resource for a wide audience -- for philosophers of language as well as for epistemologists, and for psychologists, decision theorists, historians, and students at both the advanced undergraduate and graduate levels. Contributors: Kent Bach, Joseph Keim Campbell, Joseph Cruz, Fred Dretske, Catherine Z. Elgin, Peter S. Fosl, Peter J. Graham, David Hemp, Michael O'Rourke, George Pappas, John L. Pollock, Duncan Pritchard, Joseph Salerno, Robert J. Stainton, Harry S. Silverstein, Joseph Thomas Tolliver, Leora Weitzman The hardcover edition does not include a dust jacket. (shrink)

In this paper I call attention to the fact that Lonergan gives two radically opposed accounts of how sense perception relates us to the external world and of how we know that this relation exists. I argue that the position that Lonergan characteristically adopts is not the one implied by what is most fundamental in his theory of cognition. I describe the initial epistemic position with regard to the problem of skepticism about the external material world that is in (...) fact implied by his theory of cognition, and I sort out some confusion about various forms of direct and representative perceptual realism. The paper concludes with a critique of Lonergan’s theory of description and explanation in empirical science that makes evident the difficulties into which he is led by lack of clarity in his theory of perception. (shrink)

Since the most promising path to a solution to the problem of skepticism regarding perceptual knowledge seems to rest on a sharp distinction between perceiving and inferring, I begin by clarifying and defending that distinction. Next, I discuss the chief obstacle to success by this path, the difficulty in making the required distinction between merely logical possibilities that one is mistaken and the real (Austin) or relevant (Dretske) possibilities which would exclude knowledge. I argue that this distinction cannot (...) be drawn in the ways Austin and Dretske suggest without begging the questions at issue. Finally, I sketch and defend a more radical way of identifying relevant possibilities that is inspired by Austin's controversial suggestion of a parallel between saying I know and saying I promise: a claim of knowledge of some particular matter is relative to a context in which questions about the matter have been raised. (shrink)

Colour synaesthesia is the mental experience involving a strong association between specific colours and specific auditory stimuli, such as words, or achromatic visual stimuli, such as numerals or letters. In the contemporary literature on colour synaesthesia, the majority view treats the phenomenon as one arising from some of the same neural events mediating colour perception triggered by genuinely coloured objects; this view that synaesthesia is perceptually based, however, is not universally endorsed. What strategies have been utilized to evaluate the (...) class='Hi'>perceptual reality of colour synaesthesia, and what is the evidence produced by those strategies? This chapter tackles those questions within the context of colour graphemic synaesthesia, the most widely studied form of synaesthesia. We divide the research strategies into those employing behavioral measures to assess whether synaesthetia influences performance on tasks known to be sensitive stimulus colour and those employing indirect measures that use physiological responses as proxies for colour perception. Our chapter concludes that there is sufficient justification for the belief in the perceptual reality of colour grapheme synaesthesia. At the same time, we applaud those who remain disbelievers, for their skepticism has underscored the logical issues surrounding research on this question. (shrink)

New essays by leading philosophers explore topics in epistemology, offering both contemporary philosophical analysis and historical perspectives. There are two main questions in epistemology: What is knowledge? And: Do we have any of it? The first question asks after the nature of a concept; the second involves grappling with the skeptic, who believes that no one knows anything. This collection of original essays addresses the themes of knowledge and skepticism, offering both contemporary epistemological analysis and historical perspectives from leading (...) philosophers and rising scholars. Contributors first consider knowledge: the intrinsic nature of knowledge—in particular, aspects of what distinguishes knowledge from true belief; the extrinsic examination of knowledge, focusing on contextualist accounts; and types of knowledge, specifically perceptual, introspective, and rational knowledge. The final chapters offer various perspectives on skepticism. Knowledge and Skepticism provides an eclectic yet coherent set of essays by distinguished scholars and important new voices. The cutting-edge nature of its contributions and its interdisciplinary character make it a valuable resource for a wide audience—for philosophers of language as well as for epistemologists, and for psychologists, decision theorists, historians, and students at both the advanced undergraduate and graduate levels. Contributors Kent Bach, Joseph Keim Campbell, Joseph Cruz, Fred Dretske, Catherine Z. Elgin, Peter S. Fosl, Peter J. Graham, David Hemp, Michael O'Rourke, George Pappas, John L. Pollock, Duncan Pritchard, Joseph Salerno, Robert J. Stainton, Harry S. Silverstein, Joseph Thomas Tolliver, Leora Weitzman. (shrink)

In this paper I call attention to the fact that Lonergan gives two radically opposed accounts of how sense perception relates us to the external world and of how we know that this relation exists. I argue that the position that Lonergan characteristically adopts is not the one implied by what is most fundamental in his theory of cognition. I describe the initial epistemic position with regard to the problem of skepticism about the external material world that is in (...) fact implied by his theory of cognition, and I sort out some confusion about various forms of direct and representative perceptual realism. The paper concludes with a critique of Lonergan’s theory of description and explanation in empirical science that makes evident the difficulties into which he is led by lack of clarity in his theory of perception. (shrink)

McDowell’s disjunctive account of perceptual knowledge contains a novel addition to his interesting response to skepticism by placing within it a transcendental argument. It is not clear that such addition strengthens it. McDowell’s disjunctivism seems to involve both epistemological and experience- theoretical commitments. It is a two-sided structure, from which it could be raised questions about the assumed relation between the two sides. The purpose of this paper is to make some progress with evaluating McDowell’s contribution to the (...) discussion on perceptual knowledge and illuminate more general aspects of the debate about disjunctivism. (shrink)

Students sometimes profess moral relativism or skepticism with retorts like ‘how can we know?’ or ‘it’s all relative!’ Here I defend a pedagogical method to defuse moral relativism and moral skepticism using phenomenal conservatism: if it seems to S that p, S has defeasible justification to believe that p; e.g., moral seemings, like perceptual ones, are defeasibly justified. The purpose of defusing moral skepticism and relativism is to prevent these metaethical views from acting as stumbling blocks (...) to insightful ethical inquiry in the classroom. This approach puts the burden of proof on the relativist or skeptic (to justify their view, contrary to appearances), and makes their views costlier: if we reject moral seemings as a kind, we must reject other less objectionable seemings too (e.g. intellectual seemings). Finally, this approach improves learning outcomes by ‘hooking onto’ student familiarity with seemings, e.g. seeing is (defeasibly justified) believing. (shrink)

_ Source: _Volume 7, Issue 2, pp 114 - 135 It is a commonly accepted assumption in contemporary epistemology that we need to find a solution to ‘closure-based’ sceptical arguments and, hence, to the ‘scepticism or closure’ dilemma. In the present paper I argue that this is mistaken, since the closure principle does not, in fact, do real sceptical work. Rather, the decisive, scepticism-friendly moves are made before the closure principle is even brought into play. If we cannot avoid the (...) sceptical conclusion, this is not due to closure’s holding it in place, but because we’ve already been persuaded to accept a certain conception of perceptual reasons, which both issues a standing invitation to radical scepticism and is endemic in the contemporary literature. Once the real villain of the piece is exposed, it will become clear that the closure principle has been cast in the role of scapegoat in this debate. (shrink)

Rationalism, my target, says that in order to have perceptual knowledge, such as that your hand is making a fist, you must “antecedently” (or “independently”) know that skeptical scenarios don’t obtain, such as the skeptical scenario that you are in the Matrix. I motivate the specific form of Rationalism shared by, among others, White (Philos Stud 131:525–557, 2006) and Wright (Proc Aristot Soc Suppl Vol 78:167–212, 2004), which credits us with warrant to believe (or “accept”, in Wright’s terms) that (...) our senses are reliably veridical, where that warrant is one we enjoy by default, that is, without relying on any evidence or engaging in any positive argument. The problem with this form of Rationalism is that, even if you have default knowledge that your senses are reliable, this is not adequate to rule out every kind of skeptical scenario. The problem is created by one-off skeptical scenarios, scenarios that involve a highly reliable perceiver who, by a pure fluke, has a one-off, non-veridical experience. I claim you cannot infer that your present perceptual experience is veridical just on the basis of knowledge of your general reliability. More generally, if you infer that the present F is G, just on the basis of your knowledge that most Fs are Gs, this is what I call statistical inference, and, as I argue, statistical inference by itself does not generate knowledge. I defend this view of statistical inference against objections, including the objection that radical skepticism about our ordinary inductive knowledge will follow unless statistical inference generates knowledge. (shrink)

In this account of the philosophical and scientific pursuits of Pierre Gassendi , I challenge a traditional view which says that the inspiration, motivation, and demonstrative grounds for his physical atomism consist not in his empiricism but in his historicist commitments. Indeed, Gassendi suggests that it's a consequence of our best theory of knowledge and sound scientific method that we get evidence which warrants his microphysical theory. ;The primary novelty of his theory of empirical knowledge is his proposal, against the (...) Stoics and Descartes, that it is not a necessary condition of our knowing some claim that we are certain of it. This move immediately broadens the scope of what we can know through the senses, as does his suggestion that we include among such knowledge claims those assertions about what is hidden to the senses which we legitimately infer from the evidence of the perceptually given. ;On the basis of these epistemological positions, Gassendi develops his views on scientific method according to which we attain and justify our best empirical claims by deduction yet, he believes, these claims are at root probabilistic, and we may maintain hypotheses as the basis of our scientific reasoning so long as there is some empirical evidence for them, however broadly construed. ;Hence Gassendi suggests that his atomism constitutes a 'most likely hypothesis' for which we have empirical evidence--which of necessity is found indirectly in 'indicative' signs, those surface level phenomena for which he takes the existence of atoms to be a sine qua non condition. Perhaps the paramount case of such evidence consists in those microscopic observations of crystalline formation and dissolution that he takes to demonstrate the molecular structure of matter--a key and innovative consequence of his atomism. ;The robust character of Gassendi's method emerges in his appeals to indirect evidence for claims about the unobservable and his willingness to count this as adequate empirical grounds for maintaining an atomist hypothesis. Remarkably, he stands at the dawn of the modern era with at least a proposal as to how to resolve one of empiricism's more vexing difficulties, still with us in some form today. (shrink)

Genia Schönbaumsfeld has recently argued for the view that our ordinary perceptual reasons provide support for heavyweight metaphysical and epistemological views, such as that there is a mind-independent physical world. Call this the Heavyweight Reasons Thesis. In this paper, I argue that we should reject the Heavyweight Reasons Thesis. I also argue that the rejection of the Heavyweight Reasons Thesis is compatible with the Factive Perceptual Reasons Thesis, the thesis that our perceptual reasons for our ordinary beliefs (...) can be factive, but that factive reasons aren’t necessarily better reasons than subjectively indiscriminable non-factive reasons. (shrink)

The paper presents a number of empirical arguments for the perceptual view of speech comprehension. It then argues that a particular version of phenomenal dogmatism can confer immediate justification upon belief. In combination, these two views can bypass Davidsonian skepticism toward knowledge of meanings. The perceptual view alone, however, can bypass a variation on the Davidsonian argument. One reason Davidson thought meanings were not truly graspable was that he believed meanings were private (unlike behavior). But if the (...) perceptual view of speech comprehension is correct, then meanings (or at least conveyed meanings) are public objects like other perceivable entities. Hence, there is no particular problem of language comprehension, even if meanings originate in “private” mental states. (shrink)

Interpretations abound about Husserl’s understanding of the relationship between veridical perceptual experience and hallucination. Some read him as taking the two to share the same distinctive essential nature, like contemporary conjunctivists. Others find in Husserl grounds for taking the two to fall into basically distinct categories of experience, like disjunctivists. There is ground for skepticism, however, about whether Husserl’s view could possibly fall under either of these headings. Husserl, on the one hand, operates under the auspices of the (...) phenomenological reduction, abstaining from use of any epistemic commitments about mind-transcendent reality, whereas conjunctive and disjunctive accounts of perceptual experience, on the other hand, are both premised on some form of metaphysical realism. There seems to be a basic incompatibility between the former approach and the latter. I examine this line of thinking and argue that the incompatibility is only apparent. (shrink)