According to Duncan Pritchard’s version of epistemological disjunctivism, in paradigm cases of perceptual knowledge, one’s knowledge that p is grounded in one’s seeing that p, and one can, by reflection alone, come to know that they see that p. In this paper, I argue that the epistemic conception of introspective indiscriminability is incompatible with epistemological disjunctivism, so understood. This has the consequence that theories of the nature of sensory experience which accept the epistemic conception of introspective indiscriminability—such as (...) phenomenal character disjunctivism and certain forms of naïve realism—are inconsistent with epistemological disjunctivism, so understood. I then argue that proponents of epistemological disjunctivism face a formidable challenge explaining in what sense, if any, one can have purely reflective knowledge of their factive rational support. (shrink)

It is now common to distinguish Metaphysical from Epistemological Disjunctivism. It is equally common to suggest that it is at least not obvious that the latter requires a commitment to the former: at the very least, a suitable bridge principle will need to be identified which takes one from the latter to the former. This paper identifies a plausible-looking bridge principle that takes one from the version of Epistemological Disjunctivism defended by John McDowell and Duncan Pritchard, which (...) I label Reflective Epistemological Disjunctivism, or (RED), to Metaphysical Disjunctivism. Moreover, it identifies a modification the proponent of (RED) could, and should, make to the Internalist component of their theory, and argues that the commitment to Metaphysical Disjunctivism remains, even if such a modification is made. The upshot is that the commitment to Metaphysical Disjunctivism on the part of (RED) is shown to be particularly robust. (shrink)

Disjunctivists maintain that perceptual experiences and hallucinatory experiences are distinct kinds of event with different metaphysical natures. Moreover, given their view about the nature of perceptual cases, disjunctivists must deny that the perceptual kind of experience can occur during hallucination. However, it is widely held that disjunctivists must grant the converse claim, to the effect that the hallucinatory kind of experience occurs even during perception. This paper challenges that thought. As we will see, the argument for thinking that the (...) hallucinatory kind of experience is present even in cases of perception depends on prior acceptance of a ‘non-demanding’ conception of hallucination, on which all it takes to produce an hallucinatory experience is to induce in the subject the right kind of neurological condition. On the view developed here, by contrast, there are substantive causal conditions, going beyond the mere occurrence of the right kind of neurological state, that must be met if an experience of the hallucinatory kind is to occur. By drawing on this view, I argue, disjunctivists can deny that the kind of experience involved in hallucination ever occurs during perception. This then allows disjunctivists to avoid certain important problems they would otherwise face. It also leaves them with considerably more freedom when it comes to theorising about the nature of hallucinatory experience. (shrink)

Naive realism is one of the oldest theories of perception. To a first approximation, naive realism is the view that perception is a direct relation between a subject and an object. Many historical philosophers (from Locke to Russell) argued that naive realism must be rejected on the grounds that hallucinations are perceptual experiences without an object. Contemporary philosophers have resurrected the theory by insisting that genuine cases of perception have a different structure or a different metaphysical status than non-genuine (...) ones. This version of naive realism has come to be known as ‘disjunctivism’. Epistemological disjunctivism and disjunctivism about phenomenal belief, or what I shall call ‘Epistemological disjunctivism’, have also gained popularity in recent years. More recently disjunctivist accounts of bodily movements, abilities and reasons for action have entered the philosophical scene. This entry focuses on the contemporary debate about disjunctivism: its characterization, its motivation and its potential shortcomings. (shrink)

I argue that McDowell-style disjunctivism, as the position is often cashed out, goes wrong because it takes the good epistemic standing of veridical perception to be grounded in “manifest” facts which do not necessarily satisfy any epistemic constraints. A better form of disjunctivism explains the difference between good and bad cases in terms of epistemic constraints that the states satisfy. This view allows us to preserve McDowell’s thesis that good cases make facts manifest, as long as manifest facts (...) must satisfy epistemic constraints. (shrink)

I argue that we should question the orthodox way of thinking about epistemological disjunctivism. I suggest that we can formulate epistemological disjunctivism in terms of states of seeing things as opposed to states of seeing that p. Not only does this alternative formulation capture the core aspects of epistemological disjunctivism as standardly formulated, it has two salient advantages. First, it avoids a crucial problem that arises for a standard formulation of epistemological disjunctivism—the basis problem. And second, (...) it is less committed than standard formulations are in the metaphysics of perception. (shrink)

Perceptual disjunctivism, as I regard it in this paper, is the view that veridical perceptions and hallucinations, while indistinguishable via introspection, are states of fundamentally different kinds. This fundamental difference can be spelled out in various ways. According to the view I will be concerned with, it is a fundamental difference in the personal-level structure of both states. Against this version of disjunctivism, I will raise a new challenge. It is a variant of what can be seen as (...) the standard challenge against disjunctivism: how to do justice to the indistinguishability of veridical perceptions and hallucinations. It differs, however, from common versions of this challenge in where it locates the potential incompatibility of disjunctivism with the relevant fact of indistinguishability. Commonly, it is the disjunctivist assumption of a fundamental difference between both kinds of states which is regarded as incompatible with the indistinguishability of these states. In contrast, I will suggest that if hallucinations and veridical perceptions differed in the way proposed by structural disjunctivism, this difference would induce a corresponding difference in the psychological processes of their introspection and that the assumption of such a difference in the manner of introspection is most likely incompatible with a properly formulated indistinguishability claim. (shrink)

We know things that entail things we apparently cannot come to know. This is a problem for those of us who trust that knowledge is closed under entailment. In the paper I discuss the solutions to this problem offered by epistemic disjunctivism and contextualism. The contention is that neither of these theories has the resources to deal satisfactory with the problem.

I argue that epistemological disjunctivism, as defended by Pritchard (2012) or McDowell (1982/2009), faces a dilemma. To avoid collapsing into the “highest common factor view” (McDowell 1982/2009, 80), it has to combined with a metaphysical brand of disjunctivism. This is so because the epistemological disjunctivist’s contention, that veridical perception provides the perceiver with reflectively accessible epistemic reasons that are superior to those provided by hallucination, is tenable only if underwritten by the naïve realist claim that perception is (...) partly constituted by the perceived fact. As I argue, this claim inexorably leads to metaphysical disjunctivism. So, epistemological disjunctivism cannot be advertised as a view that shares some of the advantages of metaphysical disjunctivism, but is less extreme and therefore more widely acceptable. In addition to presenting the dilemma, I discuss and reject one route of escape for the epistemological disjunctivist. (shrink)

In this review article, I introduce a classification of metaphysical and epistemological forms of disjunctivism and critically discuss the essays on disjunctivism in the philosophy of perception, the philosophy of action and epistemology that are published in Fiona Macpherson and Adrian Haddock’s collection 'Disjunctivism: Perception, Action, Knowledge' (Oxford University Press, 2008).

Perceptual disjunctivism is a controversial thesis about perception. One familiar characterization of the thesis maintains that there is no common epistemic kind that is present in both veridical and non-veridical cases of perception. For example, the good case, in which one sees a yellow lemon, and the bad case, in which one hallucinates a yellow lemon, share a specific first-person phenomenology, being indistinguishable from the first-person point of view; however, seeing a yellow lemon and hallucinating a yellow lemon do (...) not, according to the disjunctivist, share a common epistemic kind. There are two types of disjunctivism: epistemological vs. metaphysical. John McDowell, 243–255, 2011, Philosophical Explorations, 16, 259–279, 2013) has articulated, refined, and defended one kind of disjunctivism. Tyler Burge, 1–78, 2005, Philosophical Explorations, 13, 43–80, 2011) has objected to many forms of disjunctivism, arguing that they are all inconsistent with the proximality principle in the vision sciences. PP requires an ability-general kind in common between relevantly similar perceptual states, such as seeing a yellow lemon and hallucinating a yellow lemon, which disjunctivism denies. Against the background of this debate some analytic epistemologists, such as Michael Martin, Alan Millar, 176–198, 2007), Berit Brogaard, 46–73, 2011), Duncan Pritchard, and Heather Logue, 105–133, 2013) remain attracted to some version of disjunctivism. Brogaard and Pritchard each have gone on to articulate and defend a version. Pritchard’s, for example, defends epistemological disjunctivism. Martin, Millar, and Logue, by contrast, have defended the idea that the disjunctivist is right about something, but perhaps not wholly correct about the nature of perception. In what follows, I articulate and defend the view that an interesting kind of disjunctivism is to be found through a reading of the Nyāya School of classical Indian philosophy. I articulate a version of perceptual disjunctivism informed by Nyāya perceptual theory that is not derivable from any single Nyāya philosopher. The view I offer is inspired by work on disjunctivism both in Anglo-analytic philosophy and in Nyāya scholarship, such as by Dasti and Phillips, 535–540, 2010), Ganeri, 541–550, 2010), Dasti, 1–15, 2012), Phillips, Vaidya, 562–585, 2013), and Schiller, 1–18, 2019). Importantly, the causal account I offer is distinct from Grice’s single-factor causal theory of perception by crucially involving a multi-factor causal theory of perception. My work on Nyāya perceptual theory derives primarily from Jaysankar Shaw’s account of Nyāya on the sources of knowledge, which is distinct from Stephen Phillips’ well-known account of Nyāya epistemology. Shaw’s theory has been developed and refined through textual analysis and dialectical engagement with the twentieth century Nyāya Pundit Philosopher, Viśvabandhu Tarkatīrtha. Like other modern Nyāya scholars, such as B. K. Matilal, A. Chakrabarti, 1–8, 2010), M. Chadha, J. Ganeri, and S. Phillips, 104–113, 2001, 2012), J. Shaw’s account shows how Nyāya epistemology is a living and continuing form of Indian philosophy. My goal here is twofold. On the one hand, I articulate multi-factor causal disjunctivism and show how it can be applied to the McDowell-Burge debate over the viability of disjunctivism and naïve realism. On the other hand, I aim to start a cross-cultural epistemological conversation with those that have contributed to the Anglo-analytic debate in anthologies, such as Haddock and Macpherson, Byrne and Logue, and introductions, such as Soteriou. The hope is that a cross-cultural epistemological investigation into disjunctivism will lead to better epistemic theorizing about the nature of perception. (shrink)

In this paper, I consider the so-called Access Problem for Duncan Pritchard’s Epistemological Disjunctivism (2012). After reconstructing Pritchard’s own response to the Access Problem, I argue that in order to assess whether Pritchard’s response is a satisfying one, we first need an account of the notion of ‘Reflective Access’ that underpins Pritchard’s Epistemological Disjunctivism. I provide three interpretations of the notion of Reflective Access: a metaphysical interpretation, a folk interpretation, and an epistemic interpretation. I argue that none (...) of these three interpretations comes without problems. I conclude that, until we have a clear and unproblematic account of Reflective Access, the Access Problem remains a challenge for Pritchard’s Epistemological Disjunctivism. (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)

What follows offers a solution for the problem of causal deviance in its three varieties. We consider Davidson on action, Grice on perception, and the account of knowledge as apt belief, as belief that gets it right through competence rather than luck. We take up the opposition between such traditional accounts and “disjunctivist” alternatives. And we explore how our take on the point and substance of metaphysical analysis bears on the problem and on competing reactions to it.

A collection of papers by leading figures on metaphysical issues pertaining to epistemology Brings together fresh, original work that well represents the present state of the field Considers the metaphysics of perception and of experience, disjunctivism, content externalism, epistemic abilities, the lottery paradox, the epistemology of consciousness, the metaphysics of knowledge as a state, and the ontology of reasons.

In this article, first of all, the author wants to show that a new justification can be provided for the idea, originally maintained in the disjunctivist camp, that genuine perceptions and hallucinations are metaphysically different kinds of mental states, independently of the fact that they all are perceptual experiences. For even if they share their phenomenal character and their representational content is put aside for the purpose of their metaphysical individuation, as some conjunctivists maintain, they still differ in their (...) mode, insofar as they differ in their functional role. Once things are so put at the metaphysical level, moreover, this account of perceptual experiences leaves room for reintroducing content for such experiences from the rear door; namely, as a singular representational content, just as some direct realists have originally suggested. Finally, this move enables the account to explain not only some intuitive data about perceptual experiences, but also to corroborate its viability, even if it does not rely on antiskeptical motivations. (shrink)

Abstract: On one formulation, epistemological disjunctivism is the view that our perceptual beliefs constitute knowledge when they are based on reasons that provide them with factive support. Some would argue that it is impossible to understand how perceptual knowledge is possible unless we assume that we have such reasons to support our perceptual beliefs. Some would argue that it is impossible to understand how perceptual experience could furnish us with these reasons unless we assume that the traditional view of (...) experience is mistaken. For reasons explained here, I think that the epistemological argument for metaphysical disjunctivism rests on mistaken assumptions about reasons and their rational role. Neither disjunctivist view is needed to understand how perceptual knowledge is possible. (shrink)

Pritchard calls his epistemological disjunctivism ‘the holy grail of epistemology’. What this metaphor means is that the acceptance of this thesis puts the internalism-externalism debate to an end, thanks to satisfaction of intuitions standing behind both competing views. Simultaneously, Pritchard strongly emphasizes that the endorsement of epistemological disjunctivism does not commit one to metaphysical disjunctivism. In this paper I analyze the formulations and motivations of epistemological disjunctivism presented by Pritchard and McDowell. Then I consider the (...) most common argument for the claim that epistemological disjunctivism can be held without the support of metaphysical disjunctivism. I conclude that the plausibility of epistemological disjunctivism depends on the plausibility of metaphysical disjunctivism. If the latter is false, the former postulates a set of conditions for epistemic justification that are impossible to be fulfilled. (shrink)

We ordinarily take it as obvious that we acquire knowledge of our world on the basis of sensory perception, and that such knowledge plays a central cognitive and practical role in our lives. Upon reflection, however, it is far from obvious what perception involves and how exactly it contributes to our knowledge. Indeed, skeptical arguments have led some to question whether we have any knowledge, or even rational or justified belief, regarding the world outside our minds. -/- Investigating the nature (...) and scope of our perceptual knowledge and perceptually justified belief, A Critical Introduction to the Epistemology of Perception provides an accessible and engaging introduction to a flourishing area of philosophy. Before introducing and evaluating the main theories in the epistemology of perception, Ali Hasan sets the stage with a discussion of skepticism, realism, and idealism in early modern philosophy, theories of perceptual experience (sense-datum theory, adverbialism, intentionalism, and metaphysical disjunctivism), and central controversies in general epistemology. Hasan then surveys the main theories in the contemporary debate, including coherentism, abductivism, phenomenal conservatism or dogmatism, reliabilism, and epistemological disjunctivism, presenting the motivations and primary objections to each. Hasan also shows how to avoid confusing metaphysical issues with epistemological ones, and identifies interesting connections between the epistemology and metaphysics of perception. -/- For students in epistemology or the philosophy of perception looking to better understand the central questions, concepts, and debates shaping contemporary epistemology, A Critical Introduction to the Epistemology of Perception is essential reading. (shrink)

This essay surveys the varieties of disjunctivism about perceptual experience. Disjunctivism comes in two main flavours, metaphysical and epistemological.

Crispin Wright argues that John McDowell’s use of disjunctivism to respond to the sceptic misses the point of the sceptic’s argument, for disjunctivism is a thesis about the differing metaphysical natures of veridical and nonveridical experiences, whereas the sceptic’s point is that our beliefs are unjustified because veridical and nonveridical experiences can be phenomenally indistinguishable. In this paper, I argue that McDowell is responsive to the sceptic’s focus on phenomenology, for the point of McDowell’s response is that (...) it is the phenomenal character of experience that makes the belief in disjunctivism rational, and thereby also makes rational the anti-sceptical belief that, other things being equal, the world is the way it appears. (shrink)

This paper surveys selected (though arguably representative) versions of metaphysical and epistemological disjunctivism. Although they share a common logical structure, it is hard to find a further common denominator among them. Two main conclusions are: (1) a specific standpoint on the nature of perceptual relation is not such a common denominator, which means that it is very unlikely that all of these views could be refuted with a single objection; (2) contrary to what its name suggests, disjunctivism (...) can be correctly expressed without the employment of disjunction. (shrink)

The claim currently known as “disjunctivism” is usually interpreted in terms of exclusive disjunction. However, it can be also explicated through the lens of alternative denial. The aim of this paper is to show that the latter interpretation is more accurate. Firstly, it reflects the core of disjunctivism more precisely. Secondly, it reduces metaphysical weight of the claim, thereby making it more plausible.

Michael Tye proposed a way of understanding the content of hallucinatory experiences. Somewhat independently, Mark Johnston provided us with elements to think about the content of hallucination. In this paper, their views are compared and evaluated. Both their theories present intricate combinations of conjunctivist and disjunctivist strategies to account for perceptual content. An alternative view, which develops a radically disjunctivist account, is considered and rejected. Finally, the paper raises some metaphysical difficulties that seem to threaten any conjunctivist theory and (...) to lead the debate to a dilemma: strong disjunctivists cannot explain the subjective indistinguishability between veridical and hallucinatory experiences, whereas conjunctivists cannot explain what veridical and hallucinatory experiences have in common. This dilemma is left here as an open challenge. (shrink)

Recent work in defence of direct realism has concentrated on the representationalist and disjunctivist responses to the arguments from illusion and hallucination, whilst relatively little attention has been given to the argument from causation which has been dismissed lightly as irrelevant or confused. However such charges arise from an ambiguity in the thesis which is being defended and the failure to distinguish between metaphysical and epistemological issues and between factual and conceptual claims. The argument from causation, as an argument (...) against the conjunction of metaphysical direct realism and an explanation of the perceptual process in terms of a naturalistically understood causal chain of events, has not been answered in the philosophical literature. Moreover when the process of perception is fleshed out in terms of contemporary cognitive science, the difficulties are compounded. Neither representation-friendly mainstream cognitive science, nor representation-averse radical embodied cognitive science, is compatible with a theory of perception which is at the same time both direct and robustly realist. (shrink)

Hilary Putnam (1926–2016) was prone to change his mind on variety of philosophical issues and almost constantly to modify his views. The last period of the development of his philosophy is known as the phase of commonsense or natural realism, eloquently presented in his 1994 Dewey Lectures. This paper is focused on three facets of his position and tries to identify three difficulties it encounters. Firstly, Putnam claims that in the contemporary realism debate we have, on the one hand, proponents (...) of extravagant metaphysical realism, and, on the other hand, advocates of various versions of irresponsible antirealism. Unfortunately, the delineation of the debate is too coarse-grained, since there are many forms of metaphysical realism, and lumping together various antirealisms is confusing and unhelpful. Secondly, Putnam’s naïve direct realism in the philosophy of perception seems incompatible with his transactional account of perception. Thirdly, for some time Putnam was under a spell of Wittgensteinian quietism that distorted the true character of his philosophical ideas. (shrink)

Michael Martin aims to affirm a certain pattern of first-person thinking by advocating disjunctivism, a theory of perceptual experience which combines naive realism with the epistemic conception of hallucination. In this paper I argue that we can affirm the pattern of thinking in question without the epistemic conception of hallucination. The first part of my paper explains the link that Martin draws between the first-person thinking and the epistemic conception of hallucination. The second part of my paper explains how (...) we can achieve Martin’s ambition without Martin’s theory. One resource that I enlist for this purpose is a naive-realist friendly conception of first-person access to experience. The metaphysical theory that I enlist is a form of naive realism that endorses an intentionalist or representationalist “common-factor” approach to veridical and hallucinatory experience. The third part of my paper briefly develops this theory. (shrink)

Justification as Ignorance offers an original account of epistemic justification as both non-factive and luminous, vindicating core internalist intuitions without construing justification as an internal condition knowable by reflection alone. Sven Rosenkranz conceives of justification, in its doxastic and propositional varieties, as a kind of epistemic possibility of knowing and of being in a position to know. His account contrasts with recent alternative views that characterize justification in terms of the metaphysical possibility of knowing. Instead, he develops a suitable (...) non-normal multi-modal epistemic logic for knowledge and being in a position to know that respects the finding that these notions create hyperintensional contexts. He also defends his conception of justification against well-known anti-luminosity arguments, shows that the account allows for fruitful applications and principled solutions to the lottery and preface paradoxes, and provides a metaphysics of justification and its varying degrees of strength that is compatible with core assumptions of the knowledge-first approach and disjunctivist conceptions of mental states. (shrink)

Philosophers of perception have a notoriously difficult time trying to account for hallucinatory experiences. One surprisingly quite popular move, and one that cross-cuts the representationalism/relationalism divide, is to say that hallucinations involve an awareness of uninstantiated properties. In this paper, I provide a new argument against this view. Not only are its proponents forced to classify many hallucinations as veridical, such experiences turn out to be necessarily veridical. In addition, I show that representationalists who endorse the uninstantiated property view must (...) reject the common fundamental kind claim and adopt disjunctivism, and naïve realists/relationalists must radically modify their disjunctivism: The distinction between ‘veridical’ and ‘hallucinatory’ will no longer track a metaphysical distinction between the relevant experiences. (shrink)