Keith Allen

David Katz was an empirical psychologist with a deep and abiding interest in phenomenology. This paper reconstructs his theory of colour and colour perception, central to which is a distinctive account of the perception of illumination and empty space. Katz's views were an important influence on both the Gestalt psychologists and phenomenologists such as Merleau‐Ponty, and have contemporary relevance to ongoing debates about the nature of colour and colour perception. Reflection on Katz's theory of colour and colour perception provides a way of understanding whether, and in what sense, Katz was a phenomenologist; it thereby provides a perspective on wider questions about the nature of phenomenology.

Longstanding philosophical debates about the nature of perception revolve around a clash between Direct Realist and Indirect Realist conceptions of vision. These deny and affirm, respectively, that vision involves awareness of mental images which represent the physical objects of sight. The assumption that ‘the’ common-sense conception of vision is Direct Realist shapes these debates. Against this key assumption, recent studies in experimental philosophy have provided first evidence that laypeople are, collectively and often individually, torn between Direct Realist and Indirect Realist conceptions, and regard both as naïve. These findings raise a general methodological issue: Does agreement with two such patently incompatible conceptions reflect genuine beliefs? This paper crucially extends first findings, examines whether agreement ratings are indicative of beliefs, and offers an explanation of how the conflicting beliefs involved could be acquired and maintained. Three studies develop and validate the new Direct/Indirect Realist Belief Inventory (DIRBI) which uses agreement ratings with verbal and pictorial stimuli to assess the prevalence of the two conflicting conceptions among laypeople. Findings confirm that laypeople hold relevant beliefs and are, collectively and individually, torn between the two conceptions. We suggest these beliefs are ultimately anchored in ubiquitous implicit knowledge structures, namely, experiential event knowledge about vision and an implicit model of endogenous attention. We conclude that there is no such thing as ‘the’ common-sense conception of vision that could enjoy the epistemic default status accorded to common sense in many philosophical debates.

How should we decide between philosophical theories of perception? This paper addresses this question by considering the debate between naïve realists and their opponents, and in particular the claim that naïve realism provides a distinctive way of resolving the Problem of Consciousness. I argue that the naïve realist’s solution requires rejecting what many consider to be a ‘fixed point’ in theorizing about perception: a commitment to physicalism. In light of this, I consider different ways of understanding naïve realism and its motivation, suggesting that naïve realism might be best understood as a transcendental theory of perception.

This volume brings together a collection of new essays by leading scholars on the subject of causation in the early modern period, from Descartes to Lady Mary Shepherd. Aimed at researchers, graduate students and advanced undergraduates, the volume advances the understanding of early modern discussions of causation, and situates these discussions in the wider context of early modern philosophy and science. Specifically, the volume contains essays on key early modern thinkers, such as Descartes, Hobbes, Spinoza, Leibniz, Hume, Kant. It also contains essays that examine the important contributions to the causation debate of less widely discussed figures, including Louis la Forge, Thomas Brown and Lady Mary Shepherd.

This volume brings together a collection of new essays by leading scholars on the subject of causation in the early modern period, from Descartes to Lady Mary Shepherd. Aimed at researchers, graduate students and advanced undergraduates, the volume advances the understanding of early modern discussions of causation, and situates these discussions in the wider context of early modern philosophy and science. Specifically, the volume contains essays on key early modern thinkers, such as Descartes, Hobbes, Spinoza, Leibniz, Hume, Kant. It also contains essays that examine the important contributions to the causation debate of less widely discussed figures, including Louis la Forge, Thomas Brown and Lady Mary Shepherd.

Philosophical debates about the nature of perception are standardly informed by an empirical assumption about folk beliefs: They assume there is such a thing as “the” common‐sense conception of vision, and that this conception is captured by Direct Realism. This naïve theory is thought to compete with scientifically informed Indirect Realism. This paper discusses how to render these claims empirically tractable and reports a scientific accuracy rating study whose findings suggest instead that both Direct Realism and Indirect Realism capture prescientific conceptions. We discuss two philosophical consequences: “Common sense” is too conflicted about vision to deserve epistemic default status in philosophical debates about perception, and the “problem of perception” needs to be reconceptualized as arising not from a challenge to our ordinary understanding of vision, but from a patent conflict within this understanding. Together, these two upshots facilitate a fresh approach to the problem which can usefully be transferred to further “aporetic” problems that arise from conflicts between beliefs to which we are pretheoretically attracted.

This article explores home dissatisfaction using methods modelled on those used to understand negative body image and its causes. We found that a substantial proportion of UK participants (13–39%) expressed dissatisfaction with their homes. Although the strongest association was between home dissatisfaction and reported physical problems, there was evidence that dissatisfaction is also predicted by experiencing pressure from the media and your family to improve your home, as well as reporting a greater tendency to compare your home to others’. The results of the study provide initial evidence for a sociocultural explanation of home dissatisfaction, analogous to sociocultural explanations of body dissatisfaction.

This chapter examines the debates concerning the theory of ideas in Great Britain during the seventeenth century, focusing on the concept, origin, and types of ideas. It explains that the so-called way of ideas that are primarily associated with Rene Descartes and John Locke represent attempts to replace scholastic Aristotelian theories of the nature of the mind and its relation to the world. The chapter also discusses the relevant works of Thomas Hobbes and the Cambridge Platonists, and considers the relevance of skepticism and idealism to the notion of ideas.

Many philosophers believe that there is a causal condition on perception, and that this condition is a conceptual truth about perception. A highly influential argument for this claim is based on intuitive responses to Gricean style thought experiments. Do the folk share the intuitions of philosophers? Roberts et al. (2016) presented participants with two kinds of cases: Blocker cases (similar to Grice’s case involving a mirror and a pillar) and Non-Blocker cases (similar to Grice’s case involving a clock and brain stimulation). They found that a substantial minority agreed that seeing occurs in the Non-Blocker cases, and that in the Blocker cases significantly less agreed that seeing occurs. They thus hypothesized that folk intuitions better align with a no blocker condition than with a causal condition. This paper continues this line of enquiry with two new experiments. The paper investigates the generality and robustness of Roberts et al.’s findings by expanding the sense modalities tested from only vision to audition and olfaction as well. The paper also uses Gricean style thought experiments as a case study for investigating the “reflection defense” against the negative project in experimental philosophy. Our results replicate and extend Roberts et al.’s study and support their hypothesis that folk intuitions better align with a no blocker condition. They also provide an empirical reason to doubt the reflection defense.

Many philosophers believe that there is a causal condition on perception, and that this condition is a conceptual truth about perception. A highly influential argument for this claim is based on intuitive responses to Gricean-style thought experiments. Do the folk share the intuitions of philosophers? Roberts et al. (2016) presented participants with two kinds of cases: Blocker cases (similar to Grice’s case involving a mirror and a pillar) and Non-Blocker cases (similar to Grice’s case involving a clock and brain stimulation). They found that a substantial minority agreed that seeing occurs in the Non-Blocker cases, and that in the Blocker cases significantly less agreed that seeing occurs. They thus hypothesized that folk intuitions better align with a no blocker condition than with a causal condition. This paper continues this line of enquiry with two new experiments. The paper investigates the generality and robustness of Roberts et al.’s findings by expanding the sense modalities tested from only vision to audition and olfaction as well. The paper also uses Gricean-style thought experiments as a case study for investigating the “reflection defense” against the negative project in experimental philosophy. Our results replicate and extend Roberts et al.’s study and support their hypothesis that folk intuitions better align with a no blocker condition. They also provide an empirical reason to doubt the reflection defense.

Margaret Cavendish was a contemporary critic of the mechanistic theories of matter that came to dominate seventeenth-century thought and the proponent of a distinctive form of non-mechanistic materialism. Colour was a central issue both to the mechanistic theories of matter that Cavendish opposed and to the non-mechanistic alternative that she defended. This chapter considers the form of colour realism that Cavendish developed to complement her non-mechanistic materialism, and uses her criticisms of contemporary views of colour to try to better understand the experimental approach to natural philosophy associated with writers like Hooke and Boyle. Allen argues that Cavendish’s discussion of colour in Observations upon Experimental Philosophy helps to show that there was a close connection between experimental philosophy and mechanistic theories of matter, and that, at least in the middle of the seventeenth century, experimental and speculative forms of mechanism were not mutually exclusive.

This paper develops a form of transcendental naïve realism. According to naïve realism, veridical perceptual experiences are essentially relational. According to transcendental naïve realism, the naïve realist theory of perception is not just one theory of perception amongst others, to be established as an inference to the best explanation and assessed on the basis of a cost-benefit analysis that weighs performance along a number of different dimensions: for instance, fidelity to appearances, simplicity, systematicity, fit with scientific theories, and so on. Rather, naïve realism enjoys a special status in debates in the philosophy of perception because it represents part of the transcendental project of explaining how it is possible that perceptual experience has the distinctive characteristics it does. One of the potentially most interesting prospects of adopting a transcendental attitude towards naïve realism is that it promises to make the naïve realist theory of perception, in some sense, immune to falsification. This paper develops a modest form of transcendental naïve realism modelled loosely on the account of the reactive attitudes provided by Strawson in ‘Freedom and Resentment’, and suggests one way of understanding the claim that naïve realism is immune to falsification.

Colours appear to instantiate a number of structural properties: for instance, they stand in distinctive relations of similarity and difference, and admit of a fundamental distinction into unique and binary. Accounting for these structural properties is often taken to present a serious problem for physicalist theories of colour. This paper argues that a prominent attempt by Byrne and Hilbert to account for the structural properties of the colours, consistent with the claim that colours are types of surface spectral reflectance, is unsuccessful. Instead, it is suggested that a better account of the structural properties of the colours is provided by a form of non-reductive physicalism about colour: a naïve realist theory of colour, according to which colours are superficial mind-independent properties.

Locke Defines Knowledge at the beginning of Book IV of the Essay concerning Human Understanding as “the perception of the connexion and agreement, or disagreement and repugnancy of any of our Ideas” (E IV.i.2).1 So defined, knowledge varies along two dimensions. On the one hand, there are four “sorts” of knowledge: of identity or diversity; relation; co-existence or necessary connection; and real existence. On the other hand, there are three “degrees” of knowledge: intuitive knowledge, which consists in the “immediate” perception of agreement or disagreement between ideas (E IV.ii.1); demonstrative knowledge, which consists in the perception of agreement or disagreement by way of intermediate (or intervening)..

This paper presents an ‘over-representational’ account of blurred visual experiences. The basic idea is that blurred experiences provide too much, inconsistent, information about objects’ spatial boundaries, by representing them as simultaneously located at multiple locations. This account attempts to avoid problems with alternative accounts of blurred experience, according to which blur is a property of a visual field, a way of perceiving, a form of mis-representation, and a form of under-representation.

Objects appear different as the illumination under which they are perceived varies. This fact is sometimes thought to pose a problem for the view that colours are mind-independent properties: if a coloured object appears different under different illuminations, then under which illumination does the object appear the colour it really is? I argue that given the nature of natural daylight, and certain plausible assumptions about the nature of the colours it illuminates, there is a non-arbitrary reason to suppose that it is under natural daylight that we are able to perceive the real colours of objects.

Jonathan Cohen has produced a powerful argument for Colour Relationalism: the metaphysical thesis that colours are relational properties of a certain sort—relational with respect to perceivers and circumstances. Cohen makes two important assumptions: one is that Colour Relationalism and Colour Irrealism (which include Colour Eliminativism, Fictionalism and other “error theories”) are rivals; the second is that “error theories” are theories of last resort. In this paper, I challenge both assumptions. In particular, I argue that there is good reason to think that Colour Relationalism needs to be supplemented by some version ofan Error theory. In so doing, I examine, in detail, the issues raised in a paper by Janet Levin in which she engages in an instructive debate with Colin McGinn. Levin’s paper is important since Cohen places heavy reliance on her arguments, both in defending his relationalist theory against crucial objections, and in his dismissal of error theories.

The view that the mind-dependence of colour is implicit in our ordinary thinking has a distinguished history. With its origins in Berkeley, the view has proved especially popular amongst so-called ‘Oxford’ philosophers, proponents including Cook Wilson (1904: 773-4), Pritchard (1909: 86-7), Ryle (1949: 209), Kneale (1950: 123) and McDowell (1985: 112). Gareth Evans’s discussion of secondary qualities in “Things Without the Mind” is representative of this tradition. It is his version of the view that I consider in this paper.

What, according to Locke, are ideas? I argue that Locke does not give an account of the nature of ideas. In the Essay, the question is simply set to one side, as recommended by the “Historical, plain Method” that Locke employs. This is exemplified by his characterization of ‘ideas’ in E I.i.8, and the discussion of the inverted spectrum hypothesis in E II.xxxii. In this respect, Locke's attitude towards the nature of ideas in the Essay is reminiscent of Boyle's diffident attitude towards the nature of matter. In posthumously published work, however, Locke suggests that the enquiry into the nature of ideas is one of the things that the enquiry into the extent of human knowledge undertaken in the Essay actually shows to lie beyond the “compass of human understanding”. In this respect, Locke's attitude towards the nature of ideas is reminiscent of Sydenham's attitude towards the nature of diseases.

What is the relationship between being coloured and looking coloured? According to Alva Noë, to be coloured is to manifest a pattern of apparent colours as the perceptual conditions vary. I argue that Noë’s ‘phenomenal objectivism’ faces similar objections to attempts by traditional dispositionalist theories of colour to account for being coloured in terms of looking coloured. Instead, I suggest that to be coloured is to look coloured in a ‘non-perspectival’ sense, where non-perspectival looks transcend specific perceptual conditions.