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Seeing, acting, and knowing

Published online by Cambridge University Press:  18 November 2002

Zenon W. Pylyshyn
Zenon W. Pylyshyn
Affiliation:
Center for Cognitive Science, Rutgers University, New Brunswick, NJ 08854-8020 zenon@ruccs.rutgers.edu http://ruccs.rutgers.edu/faculty/pylyshyn.html
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Abstract

The target article proposes that visual experience arises when sensorimotor contingencies are exploited in perception. This novel analysis of visual experience fares no better than the other proposals that the article rightly dismisses, and for the same reasons. Extracting invariants may be needed for recognition, but it is neither necessary nor sufficient for having a visual experience. While the idea that vision involves the active extraction of sensorimotor invariants has merit, it does not replace the need for perceptual representations. Vision is not just for the immediate controlling of action; it is also for finding out about the world, from which inferences may be drawn and beliefs changed.

Type
Brief Report
Information
Behavioral and Brain Sciences , Volume 24 , Issue 5 , October 2001 , pp. 999
Copyright
© 2001 Cambridge University Press

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