Dogmatism about Perception

This paper is about two topics: metaepistemological absolutism and the epistemic principles governing perceptual warrant. Our aim is to highlight – by taking the debate between dogmatists and conservativists about perceptual warrant as a case study – a surprising and hitherto unnoticed problem with metaepistemological absolutism, at least as it has been influentially defended by Paul Boghossian (2006a) as the principal metaepistemological contrast point to relativism. What we find is that the metaepistemological commitments at play on both sides of this (...) dogmatism/conservativism debate do not line up with epistemic relativism nor do they line up with absolutism, at least as Boghossian articulates this position. What this case study reveals is the need in metaepistemological option space for the recognition of a weaker and less tendentious form of absolutism, what we call “environment relativism”. On this view, epistemic principles are knowable, objective, and they can serve as the basis of particular epistemic evaluations, but their validity is relative to the wider global environment in which they are applied. (shrink)

Barnett (2015) provides an interesting new challenge for Dogmatist accounts of perceptual justification. The worry is that such accounts, by accepting that a perceptual experience can provide a distinctive kind of boost to one’s credences, would lead to a form of diachronic irrationality in cases where one has already learnt in advance that one will have such an experience. One possible line of response for the Dogmatist, insists that actually having the experience will rationally make one more certain that one (...) has such an experience compared with merely learning about it in advance. Barnett dismisses this response on the grounds that there would only be a very ‘little room for one’s degree of certainty’ about the experience to increase, and thus ‘little room for one’s confidence’ about the state of one’s environment to increase as a result. So this Dogmatist line of response could only account for insignificant increases in confidence. I argue that Barnett’s counter-response rests on a misleading feature of using the 0-1 interval to express probabilities and show that if we switch to using odds or (better) Log-Odds, the misleading appearance that there is only ‘a little room’ for one’s credences to increase evaporates. Moreover, there are familiar, independent reasons for taking the Log-Odds scale to provide a clearer picture of the confirmatory effect of evidence. Thus the Dogmatist can after all escape Barnett’s charge of diachronic irrationality. (shrink)

Perceptual dogmatism is a prominent theory in epistemology concerning the relationship between perceptual experience and reasonable belief. It holds that, in the absence of counterevidence, it is reasonable to believe what your perceptual experience tells you. Thus, if you are not aware of your experience’s casual history, then it doesn’t matter. Critics object that the causal history does matter: when a perceptual experience is caused in certain ways, it is unreasonable to trust what it tells you. These objections regularly appeal (...) to cognitive penetration and biased searches for evidence. Given the myriad accounts of what covert attention is, one wonders (at least I wondered) if biased patterns of covert attention could raise a new objection to dogmatism. I argue that, while covert selection might raise various problems for dogmatism, none of them are new. This is good news for dogmatism, because the fewer distinct problems it faces, the more likely it can resolve them all. (shrink)

According to Fumerton in his "How Does Perception Justify Belief?", it is misleading or wrong to say that perception is a source of justification for beliefs about the external world. Moreover, reliability does not have an essential role to play here either. I agree, and I explain why in section 1, using novel considerations about evil demon scenarios in which we are radically deceived. According to Fumerton, when it comes to how sensations or experiences supply justification, they do not do (...) so on their own, and instead only do so only in conjunction with support for background beliefs about how the sensations or experiences are best explained. Here I disagree. In section 2, I first clarify the question of whether sensations or experiences provide justification on their own. I then respond to Fumerton’s arguments that use considerations about concept-possession and about how to close possible gaps between experience and truth. In section 3, I develop my main concern about his positive view, where that concern also brings out some of the merits of the view that experiences do justify beliefs about the external world on their own. (shrink)

I offer an epistemic framework for theorising about faith. I suggest that epistemic faith is a disposition to believe or infer according to particular methods, despite a kind of tendency to perceive an epistemic shortcoming in that method. Faith is unjustified, and issues into unjustified beliefs, when the apparent epistemic shortcomings are actual; it is justified when the epistemic worries are unfounded. -/- Virtuous faith is central to a great deal of epistemology. A rational agent will manifest faith in their (...) perceptual abilities, in determining which experts and testifiers to trust, in their a priori reasoning, and in the epistemic capacities that are specific to their social environment. To ignore faith is to ignore a crucial element of our social and individualistic epistemic lives. -/- One exercises faith when one forms beliefs despite a kind of apparent epistemic shortcoming, which may or may not correspond to a genuine weakness in evidential support. For example, standing on a bridge one knows to be safe, despite one’s natural but irrational fear, can manifest a kind of epistemic faith. So too can forming perceptual beliefs, or engaging in logical inferences, despite lacking a dialectically satisfying response to skeptical arguments. The same goes for beliefs that are informed by one’s ideological stance—these too count as a manifestation of faith, and under some circumstances, such faith is epistemically appropriate. -/- One upshot of my project will be that an intuitively appealing neutrality ideal for education and discourse is untenable. I’ll conclude with some discussion of practical questions about whether, when, and why it can be worthwhile engaging seriously with people who have radically opposed views and frameworks. (shrink)

This paper attempts to defend perceptual dogmatism (PD), a theory of epistemic justification, from three objections: (1) the subject's perspective objection (SPO), (2) the problem of easy justification, and (3) the objection from cognitive penetration. The SPO charges PD with allowing for a subject to be justified in his belief that P even when P is accidentally true from the subject's perspective. The problem of easy justification claims that intuitively, PD is too permissive in granting justification for beliefs about the (...) external world, such that a subject can come to have justification for the reliability of his/her perceptual faculties by trivial entailment and/or bootstrapping. The objector claims that the reasoning from the belief about the external world to the belief about reliability is sound, but the justification was arrived at too easily. The objection from cognitive penetration claims that prior mental states can cause a subject to have certain perceptual experiences. If perceptual experiences are supposed to be justification conferring, then there ought to be constraints on the etiology of the experience because inappropriate mental states can cause experiences that intuitively are not justification conferring. I offer some arguments guarding against these objections. (shrink)

In recent epistemology many philosophers have adhered to a moderate foundationalism according to which some beliefs do not depend on other beliefs for their justification. Reliance on such ‘basic beliefs’ pervades both internalist and externalist theories of justification. In this article I argue that the phenomenon of perceptual learning – the fact that certain ‘expert’ observers are able to form more justified basic beliefs than novice observers – constitutes a challenge for moderate foundationalists. In order to accommodate perceptual learning cases, (...) the moderate foundationalist will have to characterize the ‘expertise’ of the expert observer in such a way that it cannot be had by novice observers and that it bestows justification on expert basic beliefs independently of any other justification had by the expert. I will argue that the accounts of expert basic beliefs currently present in the literature fail to meet this challenge, as they either result in a too liberal ascription of justification or fail to draw a clear distinction between expert basic beliefs and other spontaneously formed beliefs. Nevertheless, some guidelines for a future solution will be provided. (shrink)

Response to Horgan, Goldman, and Graham. Part of a book symposium on my _Perception and Basic Beliefs_.

The author argues that Quine’s criticism of Kantian analytical/synthetic distinction, as well as transcendentalist reductionism, is not entirely adequate. Furthermore, the author states that Kant’s and Quine’s theories of experience and cognition (transcendentalist and holistic) are based on a common dogma, the one of consistency. Taking into account their uncritical ac-ceptance of experience as a system that is able to adjust new and old elements to each other, both philosophers have much more in common than Quine and his followers might (...) have ex- pected. (shrink)

ABSTRACTRational agents have consistent beliefs. Bayesianism is a theory of consistency for partial belief states. Rational agents also respond appropriately to experience. Dogmatism is a theory of how to respond appropriately to experience. Hence, Dogmatism and Bayesianism are theories of two very different aspects of rationality. It's surprising, then, that in recent years it has become common to claim that Dogmatism and Bayesianism are jointly inconsistent: how can two independently consistent theories with distinct subject matter be jointly inconsistent? In this (...) essay I argue that Bayesianism and Dogmatism are inconsistent only with the addition of a specific hypothesis about how the appropriate responses to perceptual experience are to be incorporated into the formal models of the Bayesian. That hypothesis isn't essential either to Bayesianism or to Dogmatism, and so Bayesianism and Dogmatism are jointly consistent. That leaves the matter of how experiences and credences are related, a... (shrink)

Walking through the supermarket, I see the avocados. I know they are avocados. Similarly, if you see a pumpkin on my office desk, you can know it’s a pumpkin from its looks. The phenomenology in such cases is that of “just seeing” that such and such. This phenomenology might suggest that the knowledge gained is immediate. This paper argues, to the contrary, that in these target cases, the knowledge is mediate, depending as it does on one’s knowledge of what the (...) relevant kind of thing looks like. To make the case requires examining the nature of knowing what Fs look like. Is such knowledge to be understood as knowledge of a fact, or rather as a kind of ability? From the conclusion that the knowledge in the target cases is not immediate, the paper concludes that perception does not afford us immediate knowledge concerning objects’ kinds. (shrink)

Given a few assumptions, the probability of a conjunction is raised, and the probability of its negation is lowered, by conditionalising upon one of the conjuncts. This simple result appears to bring Bayesian confirmation theory into tension with the prominent dogmatist view of perceptual justification – a tension often portrayed as a kind of ‘Bayesian objection’ to dogmatism. In a recent paper, David Jehle and Brian Weatherson observe that, while this crucial result holds within classical probability theory, it fails within (...) intuitionistic probability theory. They conclude that the dogmatist who is willing to take intuitionistic logic seriously can make a convincing reply to the Bayesian objection. In this paper, I argue that this conclusion is premature – the Bayesian objection can survive the transition from classical to intuitionistic probability, albeit in a slightly altered form. I shall conclude with some general thoughts about what the Bayesian objection to dogmatism does and doesn’t show. (shrink)

According to a traditional Cartesian epistemology of perception, perception does not provide one with direct knowledge of the external world. Instead, when you look out to see a red wall, what you learn first is not a fact about the color of the wall—i.e., that it is red—but instead a fact about your own visual experience—i.e., that the wall looks red to you. If you are to justifiably believe that the wall is red, you must be in a position to (...) justifiably infer this conclusion about the external world from known premises about your own visual experience. Recent anti-Cartesian theorists have pushed back against this traditional model, claiming that the epistemic significance of having a perceptual experience is not exhausted by what can be inferred from the fact that you have the experience. After clarifying an underappreciated commitment of Cartesian accounts and some key motivations for resisting it, I argue that any anti-Cartesian account strong enough to take advantage of these motivations must license a way of updating one’s beliefs in response to anticipated experiences that seems diachronically irrational. To avoid this implausible result, the anti-Cartesian must choose between licensing an implausible kind of epistemic chauvinism, or else claiming that merely reflecting on one’s experiences can defeat the perceptual justification that they otherwise provide. This leaves us with a puzzle: Although there are powerful motivations for rejecting Cartesianism, any view that avails itself of them faces serious problems of its own. (shrink)

Many people have recently argued that we need to distinguish between experiences and seemings and that this has consequences for views about how perception provides evidence. In this article I spell out my take on these issues by doing three things. First, I distinguish between mere sensations like seeing pitch black all around you and perceptual experiences like seeing a red apple. Both have sensory phenomenology in presenting us with sensory qualities like colors, being analog in Dretske's sense, and being (...) fine-grained. However, only the latter have furthermore a perceptual phenomenology characterized by objectification and related dualities of perspectivality/completion and variation/constancy. Second, I elaborate on the reasons for thinking that both mere sensations and perceptual experiences need to be distinguished from accompanying seemings that passively assign things into conceptual categories and thereby tell you something about them. For example, when you look at a red apple and have the relevant recognitional abilities it will also normally seem to you that this is an apple. Finally, I argue that the best version of the popular dogmatist view about evidence is one which claims that it's neither experiences nor seemings by themselves, but rather the right sorts of composites of experiences and seemings that provide evidence. (shrink)

In Processes of Knowledge, George Towner analyzes the actual ways that human knowledge is accumulated and organized, both in science and in everyday life. He places the processes of knowledge within their social context, examining the basic ways that communication lets people share ideas. Towner traces the development of language, writing, and data processing, demonstrating their different effects on theorizing. He also develops an evolutionary view of group thinking, examining the ways that human groups use specific types of theories to (...) achieve social cohesion and showing how these theories change over time. The result is a dynamic view of intellectual history, based on the inherent processes by which knowledge grows. (shrink)

Dogmatists and phenomenal conservatives think that if it perceptually seems to you that p, then you thereby have some prima facie justification for believing that p. Increasingly, writers about these views have argued that perceptual seemings are composed of two other states: a sensation followed by a seeming. In this article we critically examine this movement. First we argue that there are no compelling reasons to think of perceptual seemings as so composed. Second we argue that even if they were (...) so composed, this underlying disunity in metaphysical or psychological structure would fall below the threshold of epistemic significance. (shrink)

A review of Chris Tucker's collection of papers on phenomenal conservatism.

Outside of philosophy, ‘intuition’ means something like ‘knowing without knowing how you know’. Intuition in this broad sense is an important epistemological category. I distinguish intuition from perception and perception from perceptual experience, in order to discuss the distinctive psychological and epistemological status of evaluative property attributions. Although it is doubtful that we perceptually experience many evaluative properties and also somewhat unlikely that we perceive many evaluative properties, it is highly plausible that we intuit many instances of evaluative properties as (...) such. The resulting epistemological status of evaluative property attributions is very much like it would be if we literally perceived such properties. (shrink)

According to the explanationist, we can rely on inference to best explanation to justifiably believe familiar skeptical hypotheses are false. On this view, commonsense beliefs about the existence and character of familiar, medium-sized dry goods provides the best explanation of our evidence and so justifies our belief that we're not brains-in-vats. This explanationist approach seems prima facie plausible until we press the explanationist to tell us what the data is that we're trying to explain by appeal to our beliefs about (...) external objects and how we could have access to it. (shrink)

I review recent work on Phenomenal Conservatism, the position introduced by Michael Huemer according to which if it seems that P to a subject S, in the absence of defeaters S has thereby some degree of justification for believing P.

According to Jim Pryor’s dogmatism, if you have an experience as if P, you acquire immediate prima facie justification for believing P. Pryor contends that dogmatism validates Moore’s infamous proof of a material world. Against Pryor, I argue that if dogmatism is true, Moore’s proof turns out to be non-transmissive of justification according to one of the senses of non-transmissivity defined by Crispin Wright. This type of non-transmissivity doesn’t deprive dogmatism of its apparent antisceptical bite.

I can be wrong about things I seem to perceive; the conditions might lead me to be mistaken about them. Since I can't rule out the possibility that the conditions are misleading, I can't be sure that I am perceiving this thing in my hand correctly. But suppose that I am able to examine it actively—handling it, looking closer, shining a light on it, and so on. Then, my level of uncertainty goes down; in the limit it is eliminated entirely. (...) Of course, I might be mistaken because I am a brain in a vat, or because some other sceptical scenario obtains. But sceptical scenarios apply not just to this thing in my hand, but to everything all at once. Define "empirical certainty" as the absence of the kind of doubt that spreads to all empirical states of affairs. Sensory exploration, or active examination, can in principle lead to empirical certainty. (shrink)

Is perception cognitively penetrable, and what are the epistemological consequences if it is? I address the latter of these two questions, partly by reference to recent work by Athanassios Raftopoulos and Susanna Seigel. Against the usual, circularity, readings of cognitive penetrability, I argue that cognitive penetration can be epistemically virtuous, when---and only when---it increases the reliability of perception.

Suppose our visual experiences immediately justify some of our beliefs about the external world — that is, justify them in a way that does not rely on our having independent reason to hold any background belief. A key question now arises: Which of our beliefs about the external world can be immediately justified by experiences? I address this question in epistemology by doing some philosophy of mind. In particular, I evaluate the following proposal: if your experience e immediately justifies you (...) in believing that p , then (i) e has the content that p , and (ii) e ’s having the content that p is fixed by what it is like to have e . I start by clarifying this proposal and surveying the case in its favour. I then argue against the proposal and develop an alternative. The discussion shows what role visual consciousness plays and does not play in the justification of perceptual beliefs. (shrink)

According to Jim Pryor’s dogmatism, when you have an experience with content p, you often have prima facie justification for believing p that doesn’t rest on your independent justification for believing any proposition. Although dogmatism has an intuitive appeal and seems to have an antisceptical bite, it has been targeted by various objections. This paper principally aims to answer the objections by Roger White according to which dogmatism is inconsistent with the Bayesian account of how evidence affects our rational credences. (...) If this were true, the rational acceptability of dogmatism would be seriously questionable. I respond that these objections don’t get off the ground because they assume that our experiences and our introspective beliefs that we have experiences have the same evidential force, whereas the dogmatist is uncommitted to this assumption. I also consider the question whether dogmatism has an antisceptical bite. I suggest that the answer turns on whether or not the Bayesian can determine the priors of hypotheses and conjectures on the grounds of their extra-empirical virtues. If the Bayesian can do so, the thesis that dogmatism has an antisceptical bite is probably false. (shrink)

Perceptual dogmatism holds that if it perceptually seems to S that P, then S thereby has prima facie perceptual justification for P. But suppose Wishful Willy's desire for gold cognitively penetrates his perceptual experience and makes it seem to him that the yellow object is a gold nugget. Intuitively, his desire-penetrated seeming can't provide him with prima facie justification for thinking that the object is gold. If this intuitive response is correct, dogmatists have a problem. But if dogmatists have a (...) problem, you do too (well, most of you anyway). Reliabilists have denounced dogmatism's cognitive penetration problems, but they have problems with cognitive penetration that are even worse. (shrink)

Conservatism about perceptual justification tells us that we cannot have perceptual justification to believe p unless we also have justification to believe that perceptual experiences are reliable. There are many ways to maintain this thesis, ways that have not been sufficiently appreciated. Most of these ways lead to at least one of two problems. The first is an over-intellectualization problem, whereas the second problem concerns the satisfaction of the epistemic basing requirement on justified belief. I argue that there is at (...) least one Conservative view that survives both difficulties, a view which has the further ability to undercut a crucial consideration that has supported Dogmatist views about perceptual justification. The final section explores a tension between Conservatism and the prospects of having a completely general account of propositional justification. Ironically, the problem is that Conservatives seem committed to making the acquisition of propositional justification too easy. My partial defense of Conservatism concludes by suggesting possible solutions to this problem. (shrink)

It is natural to think that many of our beliefs are rational because they are based on seemings, or on the way things seem. This is especially clear in the case of perception. Many of our mathematical, moral, and memory beliefs also appear to be based on seemings. In each of these cases, it is natural to think that our beliefs are not only based on a seeming, but also that they are rationally based on these seemings—at least assuming there (...) is no relevant counterevidence. This piece is an introduction to a volume dedicated to the question of what the connection is between seemings and justified belief: under what conditions, if any, can a seeming justify its content? (shrink)

This is a much shorter version of our entry on the Epistemology of Perception, which will be published in the Oxford Handbook for the Philosophy of Perception in 2013. The longer version has far more references in it, whereas this version is pared down to the essentials.

Fumerton, Huemer, and McGrath each contributed to a symposium on "The Epistemic Impact of the Etiology of Experience" in Philosophical Studies. These are my replies their contributions.

This paper is an essay in counterfactual epistemology. What if experience have high-level contents, to the effect that something is a lemon or that someone is sad? I survey the consequences for epistemology of such a scenario, and conclude that many of the striking consequences could be reached even if our experiences don't have high-level contents.

In this paper I offer a theory of what makes certain influences on visual experiences by prior mental states (including desires, beliefs, moods, and fears) reduce the justificatory force of those experiences. The main idea is that experiences, like beliefs, can have rationally assessable etiologies, and when those etiologies are irrational, the experiences are epistemically downgraded.

Part of a book symposium with Terry Horgan, Alvin Goldman, and Peter Graham.

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

In this paper I argue that it's possible that the contents of some visual experiences are influenced by the subject's prior beliefs, hopes, suspicions, desires, fears or other mental states, and that this possibility places constraints on the theory of perceptual justification that 'dogmatism' or 'phenomenal conservativism' cannot respect.

My focus will be on two questions about Moore’s justification to believe the premises and the conclusion of the argument above. At stake is what makes it possible for our experiences to justify our beliefs, and what makes it possible for us to be justified in disbelieving skeptical..