Veridical Hallucination and Prosthetic Vision

David Lewis

in Philosophical Papers Volume II

Published in print June 1987 | ISBN: 9780195036466
Published online November 2003 | e-ISBN: 9780199833399 | DOI:
                      Veridical Hallucination and Prosthetic Vision

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Argues that the difference between veridical hallucination and genuine seeing cannot be accounted for in terms of the absence of the normal causal process for seeing, since that process is also absent in cases of prosthetic vision. It is proposed instead that the difference lies in the pattern of counterfactual dependence of visual experience on the scene before the eyes. The paper contains a postscript with further considerations on the notion of a “suitable pattern of counterfactual dependence.”

Keywords: causal process; counterfactual dependence; hallucination; prosthetic vision; seeing

Chapter.  6931 words. 

Subjects: Philosophy

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