ABSTRACT
Among the principal philosophical problems that any satisfactory account of consciousness has to address are the following three. First, the problem of qualitative character: do experiences have intrinsic nonrepresentational properties, namely qualia, which determine what the experience is like for the subject of the experience? Second, the problem of the necessity of co-occurrence: why is it that, necessarily, an experience and the consciousness of it co-occur, i.e. necessarily either both are present together, or both are absent together? Third, the problem of introspection: what account should be given of the introspective knowledge one has of one’s own current experiences?
