Behavioral and Brain Sciences

Open Peer Commentary
Pylyshyn: Vision and cognition

Perception and information processing

Angus Gellatly a1
a1 Department of Psychology, University of Keele, Staffordshire, ST5 5BG, England


Perception and cognition can be understood either as conscious experience, thought, and behaviour or as bodily functions executed at the level of information processing. Whether or not they are cognitively penetrable depends on the level referred to. Selective attention is the mechanism by which cognition affects perception, theory influences observation and observational reports, culture biases experience, and current knowledge determines what inferences are made. Seeing must be distinguished from seeing as.