Rapid adaptation in visual cortex to the structure of images.
Complex cells in striate cortex of macaque showed a rapid pattern-specific adaptation. Adaptation made cells more sensitive to orientation change near the adapting orientation. It reduced correlations among the responses of populations of cells, thereby increasing the information transmitted by each action potential. These changes were brought about by brief exposures to stationary patterns, on the time scale of a single fixation. Thus, if successive fixations expose neurons' receptive fields to images with similar but not identical structure, adaptation will remove correlations and improve discriminability.
Müller
J R
JR
Center for Visual Science and Department of Brain and Cognitive Sciences, University of Rochester, Rochester, NY 14627, USA. jim@monkeybiz.stanford.edu
Metha
A B
AB
Krauskopf
J
J
Lennie
P
P
D000200:Action Potentials; D000222:Adaptation, Physiological; D000818:Animals; D005074:Evoked Potentials, Visual; D005403:Fixation, Ocular; D008252:Macaca fascicularis; D009474:Neurons / Q000502:physiology*; D010364:Pattern Recognition, Visual; D010775:Photic Stimulation; D013997:Time Factors; D014793:Visual Cortex / Q000166:cytology / Q000502:physiology*