  Some disjunctivist views are primarily motivated by epistemological considerations, rather than phenomenological ones. According to one approach what is fundamental to the nature of a veridical perception is the fact that it belongs to an epistemically distinguished class of perceptual experiences. Those advocating this form of disjunctivism place emphasis on the idea that when one veridically perceives the world one has a distinctive form of epistemic contact with the mind-independent world, and one’s experience provides one with grounds for making knowledgeable perceptual judgements about the mind-independent world that would be lacking if one were merely hallucinating. On this view it is a mistake to assume that the epistemic grounds that a veridical perception can provide one with for making judgements about the world are no better than the epistemic grounds that are available to one when one has a subjectively indistinguishible hallucination. Moreover, according to this view, the epistemic difference between a veridical perception and a subjectively indistinguishible hallucination is not to be explained by simply citing factors that are external to the subjective experiential state one is in when one veridically perceives the world. Rather, the epistemic difference is due to the fact that the kind of subjective experiential state one is in when one veridically perceives the world is not the same as the kind of subjective experiential state one is in when one has a subjectively indistinguishible hallucination.