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Added by: Simon Fokt, Contributed by: Simon Prosser
Abstract: Illusions are thought to make trouble for the intuition that perceptual experience is "open" to the world. Some have suggested, in response to the this trouble, that illusions differ from veridical experience in the degree to which their character is determined by their engagement with the world. An understanding of the psychology of perception reveals that this is not the case: veridical and falsidical perceptions engage the world in the same way and to the same extent. While some contemporary vision scientists propose to draw the distinction between veridical experience and illusion in terms of the satisfaction or non-satisfaction of “hidden assumptions” deployed in the course of normal perceptual inference, I argue for a different approach. I contend that there are, in a sense, no illusions – illusions are as “open” as veridical experiences. Percepts lack the kinds of intentional content that would be needed for perceptual misrepresntation. My view gives a satisfying solution to a philosophical problem for disjunctivism about the good case/bad case distinction: with respect to illusions, every "bad case" of seeing an X can be equally well construed as a "good case" of seeing some Y (different from X). -/- .
Logue, Heather. Disjunctivism2015, in Mohan Matthen (ed.), The Oxford Handbook of Philosophy of Perception. Oxford University Press. 198-216.-
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Added by: Simon Fokt, Contributed by: Simon Prosser
Abstract: Disjunctivist theories of perceptual experience claim that veridical and non-veridical experiences are radically unalike in some respect (other than the obvious difference in their causal histories). This chapter outlines four ways of elaborating this basic claim, each motivated by a different concern. The first is disjunctivism about the objects of experience, motivated by Direct Realism. The second is disjunctivism about the content of experience, motivated by the view that some experiences have object-dependent content. The third is disjunctivism about perceptual evidence (also known as epistemological disjunctivism), which is a strategy for responding to a particular sort of argument for scepticism about the external world. The fourth is disjunctivism about the metaphysical structure of experience (also known as metaphysical disjunctivism), which is motivated by Naïve Realism (a species of Direct Realism).
Comment: Good main reading on disjunctivism
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Antony, Louise. The Openness of Illusions
2011, Philosophical Issues, 21 (2011), 25-44
Comment: Background reading on direct realism and sense data.