  While those who advocate this form of disjunctivism reject a common kind claim, namely the claim that veridical perceptions and hallucinations are mental events of the same fundamental kind, they may allow that veridical perceptions and hallucinations have something in common. So they may allow that there is a kind K that veridical perceptions and hallucinations can both instantiate. However, what they deny is that such a kind K is the fundamental kind of conscious event occurring when a subject veridically perceives the world.