Visual aftereffects: cortical neurons change their tune

Curr Biol. 2004 Sep 21;14(18):R751-3. doi: 10.1016/j.cub.2004.09.011.


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.

Publication types

  • Review

MeSH terms

  • Contrast Sensitivity / physiology*
  • Figural Aftereffect / physiology*
  • Humans
  • Models, Biological
  • Neurons, Afferent / physiology*
  • Orientation / physiology
  • Visual Cortex / physiology*