Behavioral and Brain Sciences

Open Peer Commentary
Pylyshyn: Vision and cognition

Perception, inference, and the veridicality of natural constraints

Manish Singh a1 and Donald D. Hoffman a2
a1 Perceptual Science Group, Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139 [email protected]
a2 Department of Cognitive Sciences, University of California, Irvine, CA 92697-5100 [email protected]


Pylyshyn's target article argues that perception is not inferential, but this is true only under a narrow construal of inference. A more general construal is possible, and has been used to provide formal theories of many visual capacities. This approach also makes clear that the evolution of natural constraints need not converge to the “veridical” state of the world.