Behavioral and Brain Sciences



Open Peer Commentary
Pylyshyn: Vision and cognition

Binary oppositions and what focuses in focal attention


Cyril Latimer a1
a1 Department of Psychology, University of Sydney, Sydney, NSW 2006, Australia cyril@psych.usyd.edu.au www.psych.usyd.edu.au/staff/cyril

Abstract

Pylyshyn makes a convincing case that early visual processing is cognitively impenetrable, and although I question the utility of binary oppositions such as penetrable/impenetrable, for the most part I am in agreement. The author does not provide explicit designations or denotations for the terms penetrable and impenetrable, which appear quite arbitrary. Furthermore, the use of focal attention smacks of an homunculus, and the account appears to slip too easily between the perceptual, the cognitive, and the neurophysiological.