Online research in philosophy

In this article, I examine and criticize John Searle's account of the relation between mind and body. Searle rejects dualism and argues that the traditional mind-body problem has a 'simple solution': mental phenomena are both caused by biological processes in the brain and are themselves features of the brain. More precisely, mental states and events are macro-properties of neurons in much the same way that solidity and liquidity are macro-properties of molecules. However, Searle also maintains that the mental is 'ontologically irreducible' to the physical, a view which follows from his understanding of the status and nature of consciousness. Consciousness is essential to the mind; subjectivity is essential to consciousness; and no purely objective, physical description of consciousness could ever capture or explain its essentially subjective character. None the less, Searle maintains that irreducibility is a 'trivial' result of our 'definitional practices' and is entirely compatible with his theory. I contend that this latter claim is based on an equivocation: Searle's conclusion only seems to follow because he alters and trivializes what philosophers ordinarily mean by 'reduction'. I also maintain that Searle's position is reductionist in the ordinary, nontrivial sense. For this reason, his theory fails to accommodate the subjective character of consciousness and fails to solve the traditional mind-body problem. Finally, I briefly discuss Searle's claim that he is not an epiphenomenalist, and argue that given the assumptions of his view there is no interesting causal role for consciousness in the physical world.

In recent philosophy of mind, epiphenomenalism—that strain of dualism according to which the mind is caused by the body but does not cause the body in turn—has undergone something of a renaissance. Contemporary epiphenomenalists bear only partial resemblance to their more extravagantly metaphysical ancestors, however. Traditional epiphenomenalists thought that (at least) two sorts of mental properties were epiphenomenal—intentional properties such as the meaning or representational content of the propositional attitudes (beliefs, desires and so on); and conscious properties such as awareness and the qualitative nature of experience. Contemporary epiphenomenalists, on the other hand, are largely sanguine about the prospects for intentionality to be brought within the purview of a physicalist worldview; what forces their dualism is one particular feature of consciousness—what irks them are qualia, the..

In Consciousness Explained, Dennett elaborates and defends a materialist?functionalist account of the human mind, and of consciousness in particular. This defence depends crucially on his prior rejection of dualism. Dennett rejects this dualist alternative on three grounds: first, that its version of mind?to?body causation is in conflict with what we know, or have good reason to believe, from the findings of physical science; second, that the very notion of dualistic psychophysical causation is incoherent; and third, that dualism puts the mind beyond the reach of scientific investigation. In each case, his reasoning is unconvincing, and indeed leaves the dualist entirely unscathed. In contrast, without an adequate basis for his rejection of dualism, Dennett himself is left with a theory which is vulnerable to a number of familiar objections.

in the first instance, comes from my own case, not from any external observation . It is my first -person experience of consciousness that forces the problem ...