Vision: does top-down processing help us to see?
Anatomical studies of the visual cortex have identified massive back-projecting pathways. Theoretical studies suggest how such pathways may play important roles in vision by mediating 'top-down' processing, in which information from a relatively high level is fed back to early visual stages.
Przybyszewski
A W
AW
Department of Neurology, University of Massachusetts Medical Center, Worcester 01655, USA.
D000818:Animals; D008954:Models, Biological; D014793:Visual Cortex / Q000033:anatomy & histology / Q000502:physiology*; D014795:Visual Pathways; D014796:Visual Perception / Q000502:physiology