Slide 5

Possible Cellular Mechanisms of Contrast Adaptation

Contrast adaptation may take place in the retina (location 1) or LGNd (location 2). Within the cerebral cortex, contrast adaptation may result from synaptic depression at geniculocortical synapses (location 3), as a change in the properties of the postsynaptic neurons (location 4), as a change in the properties of other cortical neurons projecting to the recorded cell (location 5), or as depression of intracortical synapses (location 6).