•  2172
    How Does Colour Experience Represent the World?
    In Derek Brown & Fiona Macpherson (eds.), Routledge Handbook of Philosophy of Colour, Routledge. 2017.
    Many favor representationalism about color experience. To a first approximation, this view holds that experiencing is like believing. In particular, like believing, experiencing is a matter of representing the world to be a certain way. Once you view color experience along these lines, you face a big question: do our color experiences represent the world as it really is? For instance, suppose you see a tomato. Representationalists claim that having an experience with this sensory character is ne…Read more
  •  1706
    Consciousness and Coincidence: The Puzzle of Psychophysical Harmony
    Journal of Consciousness Studies 1 (5-6): 143-155. 2020.
    In “The Meta-Problem of Consciousness”, David Chalmers briefly raises a problem about how the connection between consciousness and our verbal and other behavior appears “lucky”. I raise a counterexample to Chalmers’s formulation of the problem. Then I develop an alternative formulation. Finally, I consider some responses, including illusionism about consciousness.
  •  4004
    I begin by describing what I call simple naïve realism. Then I describe relevant empirical results. Next, I develop two new empirical arguments against simple naive realism. Then I briefly look at two new, more complex forms of naïve realism: one due to Keith Allen and the other due to Heather Logue and Ori Beck. I argue that they are not satisfactory retreats for naive realists. The right course is to reject naive realism altogether. My stalking horse is contemporary naive realism but there is …Read more
  •  1497
    The Real Trouble for Armchair Arguments Against Phenomenal Externalism
    In Mark Sprevak & Jesper Kallestrup (eds.), New Waves in Philosophy of Mind, Palgrave-macmillan. pp. 153-181. 2014.
    I criticize some armchair arguments against phenomenal externalism due to Block, Hawthorne, Kriegel, Levine, Shoemaker and others. I conclude by discussing an overlooked armchair argument: the argument from phenomenal localism.
  •  210
    Have Byrne & Hilbert answered Hardin's challenge?
    Behavioral and Brain Sciences 26 (1): 44-45. 2003.
    I argue that Byrne & Hilbert (B&H) have not answered Hardin's objection to physicalism about color concerning the unitary-binary structure of the colors for two reasons. First, their account of unitary-binary structure seems unsatisfactory. Second, pace B&H, there are no physicalistically acceptable candidates to be the hue-magnitudes. I conclude with a question about the justification of physicalism about color.
  •  3665
    What Is the Integrated Information Theory of Consciousness?
    Journal of Consciousness Studies 26 (1-2): 1-2. 2019.
    In the first instance, IIT is formulated as a theory of the physical basis of the 'degree' or ‘level’ or ‘amount’ of consciousness in a system. In addition, integrated information theorists have tried to provide a systematic theory of how physical states determine the specific qualitative contents of episodes of consciousness: for instance, an experience as of a red and round thing rather than a green and square thing. I raise a series of questions about the central explanatory target, the 'degr…Read more
  •  3178
    Perhaps more than any other philosopher of mind, Ned Block synthesizes philosophical and scientific approaches to the mind; he is unique in moving back and forth across this divide, doing so with creativity and intensity. Over the course of his career, Block has made groundbreaking contributions to our understanding of intelligence, representation, and consciousness. Blockheads! (the title refers to Block's imaginary counterexample to the Turing test—and to the Block-enthusiast contributors) off…Read more
  •  4086
    Discusses recent work on representationalism, including: the case for a representationalist theory of consciousness, which explains consciousness in terms of content; rivals such as neurobiological type-type identity theory (Papineau, McLaughlin) and naive realism (Allen, Campbell, Brewer); John Campbell and David Papineau's recent objections to representationalism; the problem of the "laws of appearance"; externalist vs internalist versions of representationalism; the relation between represent…Read more
  •  595
  •  575
    Comments on an early version of Johnston's "The Problem with the Content View" (in Berit Brogaard ed. *Does Perception Have Content?*, 2014) delivered at a workshop on perception at NYU in 2010.
  •  3597
    The significance argument for the irreducibility of consciousness
    Philosophical Perspectives 31 (1): 349-407. 2017.
    The Significance Argument (SA) for the irreducibility of consciousness is based on a series of new puzzle-cases that I call multiple candidate cases. In these cases, there is a multiplicity of physical-functional properties or relations that are candidates to be identified with the sensible qualities and our consciousness of them, where those candidates are not significantly different. I will argue that these cases show that reductive materialists cannot accommodate the various ways in which con…Read more
  •  636
    Does it matter whether we perceptually represent tomato-hood?
  •  119
    The Perceptual Representation of Objects and Natural Kinds: Comments on Speaks
    Philosophy and Phenomenological Research 95 (2): 470-477. 2017.
  •  853
    Comments on Jane Friedman "Inquiry and Belief" (for 2015 Ranch Conference). Jane Friedman proposes DBI: One ought not to believe an (complete) answer to a question & at the same time inquire into that question – that’d be irrational. I raise some counterexamples. Then I propose an alternative principle which avoids the counterexamples and which has the further advantage of following from more general platitudes about knowledge. The general point is that even if one believes an answer to a questi…Read more
  •  3126
    I develop a new argument against Russellian Monism about consciousness.
  •  741
    I raise some objections to the theory presented in *Outside Color*.
  •  2167
    In the first instance, IIT is formulated as a theory of the physical basis of the 'degree' or ‘level’ or ‘amount’ of consciousness in a system. I raise a series of questions about the central explanatory target, the 'degree' or ‘level’ or ‘amount’ of consciousness. I suggest it is not at all clear what scientists and philosophers are talking about when they talk about consciousness as gradable. This point is developed in more detail in my paper "What Is the Integrated Information Theory of Consc…Read more
  •  907
    Do theories of consciousness rest on a mistake?
    Philosophical Issues 20 (1): 333-367. 2010.
    Using empirical research on pain, sound and taste, I argue against the combination of intentionalism about consciousness and a broadly ‘tracking’ psychosemantics of the kind defended by Fodor, Dretske, Hill, Neander, Stalnaker, Tye and others. Then I develop problems with Kriegel and Prinz's attempt to combine a Dretskean psychosemantics with the view that sensible properties are Shoemakerian response-dependent properties. Finally, I develop in detail my own 'primitivist' view of sensory intenti…Read more
  •  875
    An argument against Fregean that-clause semantics
    Philosophical Studies 138 (3). 2008.
    I develop a problem for the Fregean Reference Shift analysis of that-clause reference. The problem is discussed by Stephen Schiffer in his recent book The Things We Mean (2003). Either the defender of the Fregean Reference Shift analysis must count certain counterintuitive inferences as valid, or else he must reject a plausible Exportation rule. I consider several responses. I find that the best response relies on a Kaplan-inspired analysis of quantified belief reports. But I argue that this res…Read more
  •  210
    What is my evidence that here is a cup? Comments on Susanna Schellenberg
    Philosophical Studies 173 (4): 915-927. 2016.
    This paper is about Susanna Schellenberg's view on the explanatory role of perceptual experience. I raise a basic question about what the argument for her view might be. Then I develop two new problem cases: one involving “seamless transitions” between perception and hallucination and another involving the graded character of perceptual evidence and justification
  •  168
    Perception
    Routledge. 2020.
    Perception is one of the most pervasive and puzzling problems in philosophy, generating a great deal of attention and controversy in philosophy of mind, psychology and metaphysics. If perceptual illusion and hallucination are possible, how can perception be what it intuitively seems to be, a direct and immediate access to reality? How can perception be both internally dependent and externally directed? Perception is an outstanding introduction to this fundamental topic, covering both the p…Read more
  •  1378
    Can disjunctivists explain our access to the sensible world?
    Philosophical Issues 21 (1): 384-433. 2011.
    Develops an empirical argument against naive realism-disjunctivism: if naive realists accept "internal dependence", then they cannot explain the evolution of perceptual success. Also presents a puzzle about our knowledge of universals.
  •  2398
    In this paper, I do a few things. I develop a (largely) empirical argument against naïve realism (Campbell, Martin, others) and for representationalism. I answer Papineau’s recent paper “Against Representationalism (about Experience)”. And I develop a new puzzle for representationalists.
  •  1189
    The Interdependence of Phenomenology and Intentionality
    The Monist 91 (2): 250-272. 2008.
    I address the question of whether phenomenology is "prior to" all intentionality. I also sketch a version of David Lewis's interpretationism in which phenomenal intentionality plays the role of source intentionality.
  •  937
    Colour, philosophical perspectives
    In Patrick Wilken, Timothy J. Bayne & Axel Cleeremans (eds.), The Oxford Companion to Consciousness, Oxford University Press. pp. 144-149. 2009.
    An overview of the main positions on colour.
  •  120
    Review of Jonathan Cohen, The Red and the Real: An Essay on Color Ontology (review)
    Notre Dame Philosophical Reviews 2010 (3). 2010.
    A review of Cohen's *The Red and the Real*