Abstract: The computational theory of mind construes the mind as an information-processor and cognitive capacities as essentially representational capacities. Proponents of the view claim a central role for representational content in computational models of these capacities. In this paper I argue that the standard view of the role of representational content in computational models is mistaken; I argue that representational content is to be understood as a gloss on the computational characterization of a cognitive process.
Multiple realizability revisited: Linking cognitive and neural states
Abstract: The claim of the multiple realizability of mental states by brain states has been a major feature of the dominant philosophy of mind of the late 20th century. The claim is usually motivated by evidence that mental states are multiply realized, both within humans and between humans and other species. We challenge this contention by focusing on how neuroscientists differentiate brain areas. The fact that they rely centrally on psychological measures in mapping the brain and do so in a comparative fashion undercuts the likelihood that, at least within organic life forms, we are likely to find cases of multiply realized psychological functions.
Theory-Theory and the Direct Perception of Mental States
Abstract: Philosophers and psychologists have often maintained that in order to attribute mental states to other people one must have a ‘theory of mind’. This theory facilitates our grasp of other people’s mental states. Debate has then focussed on the form this theory should take. Recently a new approach has been suggested, which I call the ‘Direct Perception approach to social cognition’. This approach maintains that we can directly perceive other people’s mental states. It opposes traditional views on two counts: by claiming that mental states are observable and by claiming that we can attribute them to others without the need for a theory of mind. This paper argues that there are two readings of the direct perception claims: a strong and a weak one. The Theory-theory is compatible with the weak version but not the strong one. The paper argues that the strong version of direct perception is untenable, drawing on evidence from the mirror neuron literature and arguments from the philosophy of science and perception to support this claim. It suggests that one traditional ‘theory of mind’ view, the ‘Theory-theory’ view, is compatible with the claim that mental states are observable, and concludes that direct perception views do not offer a viable alternative to theory of mind approaches to social cognition.
How not to refute eliminative materialism
Abstract: This paper examines and rejects some purported refutations of eliminative materialism in the philosophy of mind: a quasi-transcendental argument due to Jackson and Pettit (1990) to the effect that folk psychology is “peculiarly unlikely” to be radically revised or eliminated in light of the developments of cognitive science and neuroscience; and (b) certain straight-out transcendental arguments to the effect that eliminativism is somehow incoherent (Baker, 1987; Boghossian, 1990). It begins by clarifying the exact topology of the dialectical space in which debates between eliminativist and anti-eliminativist ought to be framed. I claim that both proponents and opponents of eliminativism have been insufficiently attentive to the range of dialectical possibilities. Consequently, the debate has not, in fact, been framed within the correct dialectical setting. I then go onto to show how inattentiveness to the range of dialectical possibilities undermines both transcendental and quasi-transcendental arguments against eliminativism. In particular, I argue that the quasi-transcendentalist overestimates the degree to which folk psychology can be insulated from the advance of neuroscience and cognitive science just in virtue of being a functional theory. I argue further that transcendental arguments are fallacious and do not succeed against even the strongest possible form of eliminativism. Finally, I argue that that transcendental arguments are irrelevant. Even if such arguments do succeed against a certain’very strong form of eliminativism, they remain complete non-starters against certain weaker forms of eliminativism. And I argue that if any of these weaker forms is true, folk psychology is in trouble enough to vindicate Paul Ckurchland’s claim that our common sense psychological framework is “a radically false and misleading conception of the causes of human behavior and the nature of cognitive activity”.
Narrow content functionalism and the mind-body problem
Summary: Narrow content functionalism claims that the contents of beliefs are determined by their causal profile. If two belief tokens are of the same causal type, they are of the same semantic type. However, Taylor argues that de dicto semantic types do not supervene on causal types, due to multiple realizability. He establishes this with the thought experiment of “fraternal twin earth”, where things are functionally identical but molecularily different.
Consciousness in Action
Publisher’s Note: In this important book, Susan Hurley sheds new light on consciousness by examining its relationships to action from various angles. She assesses the role of agency in the unity of a conscious perspective, and argues that perception and action are more deeply interdependent than we usually assume. A standard view conceives perception as input from world to mind and action as output from mind to world, with the serious business of thought in between. Hurley criticizes this picture, and considers how the interdependence of perceptual experience and agency at the personal level (of mental contents and norms) may emerge from the subpersonal level (of underlying causal processes and complex dynamic feedback systems). Her two-level view has wide implications, for topics that include self-consciousness, the modularity of mind, and the relations of mind to world. The self no longer lurks hidden somewhere between perceptual input and behavioral output, but reappears out in the open, embodied and embedded in its environment.
Hurley traces these themes from Kantian and Wittgensteinian arguments through to intriguing recent work in neuropsychology and in dynamic systems approaches to the mind, providing a bridge from mainstream philosophy to work in other disciplines. Consciousness in Action is unique in the range of philosophical and scientific work it draws on, and in the deep criticism it offers of centuries-old habits of thought.
Varieties of Externalism
Abstract: Externalism comes in varieties. While the landscape isn’t tidy, I offer an organizing framework within which many of the forms it has taken (though perhaps not all) can be located. This taxonomy should be useful in itself. I’ll also use it to survey and compare arguments for different kinds of externalism, while probing related intuitions.
Ontology Made Easy
Abstract: Existence questions have been topics for heated debates in metaphysics, but this book argues that they can often be answered easily, by trivial inferences from uncontroversial premises. This ‘easy’ approach to ontology leads to realism about disputed entities, and to the view that metaphysical disputes about existence questions are misguided.
A New Argument Against the Existence Requirement
Abstract: It may appear that in order to be any way at all, a thing must exist. A possible – worlds version of this claim goes as follows: (E) For every x, for every possible world w, Fx at w only if x exists at w. Here and later in (R), the letter ‘F’ is used as a schematic letter to be replaced with a one – place predicate. There are two arguments against (E). The first is by analogy. Socrates is widely admired now but he does not exist now. So, it is not the case that for every x, for every time t, Fx at t only if x exists at t. Possible worlds are analogous to times. Therefore, (E) is false (cf., Kaplan 1973: 503 – 05 and Salmon 1981: 36 – 40). For the second argument, replace ‘F’ with ‘does not exist’. (E) then says that for every x, for every possible world w, x does not exist at w only if x exists at w. This is obviously false. Therefore (E) is false (cf., Kaplan 1977: 498). Despite their considerable appeal, these arguments are not unassailable. The first argument suffers from the weakness inherent in any argument from analogy; the analogy it rests on may not.
Of sensory systems and the “aboutness” of mental states
Summary: The author presents a critique of the classical conception of the senses assumed by the majority of naturalist authors who attempt to explain mental content. This critique is based on neurobiological data on the senses that suggest that they do not seem to describe objective characteristics of the world, but instead act “narcissistically”, so to speak, representing information depending on the specific interests of the organism.