  Some disjunctivists say relatively little about the nature of hallucination (e.g., McDowell, Campbell and Brewer). For example, McDowell characterises hallucinatory experience as a “mere appearance” that such and such is the case, which seems to leave open whether a more positive account can potentially be given. Dancy (1995) suggests that the disjunctivist should offer a more direct characterization of the kind of experience that occurs when one hallucinates, rather than simply characterising it solely by saying that it is like what it is not. He suggests that in a fully explicit version of the disjunctive theory hallucination would be characterised in a direct, positive way.