The metaphysical neutrality of cognitive science

Progress in psychology and the cognitive sciences is often taken to vindicate physicalism and cast doubt on such extravagant metaphysical theses as dualism and idealism. The goal of this paper is to argue that cognitive science has no such implications-rather, evidence from cognitive science is largely (but not wholly) irrelevant to the mind-body problem. Our argument begins with the observation that data from cognitive science can be modeled by supervenience relations. We then show that supervenience relations are neutral, by showing how they can be coherently interpreted in physicalist, idealist, and dualist terms. We distinguish several types of supervenience relation, and show that each coheres better with some positions on the mind-body problem than the other. Since these variants of supervenience are not empirically equivalent, there is a possibility that data from cognitive science will end up supporting some positions on the mind-body problem more than others. It is in this sense that cognitive science is mostly, but not wholly, neutral.