Perception, illusion, and hallucination

Theoretical Medicine and Bioethics 3 (2):159-191 (1982)
Patrick Suppes'' set-theoretical approach to the analysis of theories, and Joseph D. Sneed''s metatheory are briefly outlined. The notions of observation, illusion and hallucination are reconstructed according to these approaches. It is argued that the terms perception and truth are theoretical with respect to observation but nontheoretical with respect to illusion and hallucination. Hallucination is construed as a special kind of illusion.
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DOI 10.1007/BF00882203
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