Visual aftereffects: cortical neurons change their tune.
Recent studies of areas V1 and MT in the visual cortex show that exposure to a stimulus can change the contrast sensitivity of cells and shift their peak sensitivity to a new orientation or movement direction. In MT, these shifts can correctly predict illusory changes - visual aftereffects - in movement direction, but in V1, they are more difficult to interpret.
Georgeson
Mark
M
Neurosciences Research Institute, Aston University, Birmingham B4 7ET, UK.
D015350:Contrast Sensitivity / Q000502:physiology*; D005366:Figural Aftereffect / Q000502:physiology*; D006801:Humans; D008954:Models, Biological; D009475:Neurons, Afferent / Q000502:physiology*; D009949:Orientation / Q000502:physiology; D014793:Visual Cortex / Q000502:physiology*