Facing Up to the Problem of Consciousness
David J. Chalmers Department of Philosophy University of Arizona Tucson, AZ 85721 email@example.com [Published in the Journal of Consciousness Studies 2(3):200-19, 1995. 1 Introduction Consciousness poses the most baffling problems in the science of the mind. To make progress on the problem of consciousness, we have to confront it directly. 2 The easy problems and the hard problem There is not just one problem of consciousness. The easy problems of consciousness include those of explaining the following phenomena: the ability to discriminate, categorize, and react to environmental stimuli; the integration of information by a cognitive system; the reportability of mental states; the ability of a system to access its own internal states; the focus of attention; the deliberate control of behavior; the difference between wakefulness and sleep. All of these phenomena are associated with the notion of consciousness. The really hard problem of consciousness is the problem of experience.