Visual cortex: suppression by depression?
The response of a neuron in the visual cortex to an oriented light bar is strongly reduced by concurrent presentation of a stimulus with a different orientation. New data suggest this 'cross-orientation suppression' is caused, not by intracortical inhibition, but by rapid depression of thalamocortical synapses.
Max-Planck-Institut für Neurobiologie, Am Klopferspitz 18A, D-82152, Martinsried, Germany.
Thomas
T
Mrsic-Flogel
Mark
M
Hübener
D000818:Animals; D002415:Cats; D006801:Humans; D008027:Light; D036881:Long-Term Synaptic Depression / Q000502:physiology*; D009474:Neurons / Q000502:physiology*; D013569:Synapses / Q000502:physiology; D014793:Visual Cortex / Q000166:cytology / Q000502:physiology*; D014795:Visual Pathways; D014796:Visual Perception / Q000502:physiology*