Instructive effect of visual experience in mouse visual cortex.
We describe a form of experience-dependent response enhancement in the visual cortex of awake mice. Repeated presentations of grating stimuli of a single orientation result in a persistent enhancement of responses evoked by the test stimulus. Response potentiation is specific to the orientation of the test stimulus, develops gradually over the course of several training sessions, and occurs in both juvenile and adult mice. The stimulus-selective response potentiation (SRP) can mask deprivation-induced response depression in adult mice. SRP requires NMDA receptor activation and is prevented by viral delivery of a peptide that interferes with AMPA receptor trafficking. SRP may reveal the mechanisms involved in certain forms of perceptual learning.
Frenkel
Mikhail Y
MY
The Picower Institute for Learning and Memory, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA.
Sawtell
Nathaniel B
NB
Diogo
Antonia Cinira M
AC
Yoon
Bongjune
B
Neve
Rachael L
RL
Bear
Mark F
MF
D000818:Animals; D004193:Discrimination Learning / Q000502:physiology*; D051379:Mice; D009473:Neuronal Plasticity / Q000502:physiology; D009949:Orientation / Q000187:drug effects; D010775:Photic Stimulation / Q000379:methods*; D016194:Receptors, N-Methyl-D-Aspartate / Q000037:antagonists & inhibitors / Q000502:physiology; D014793:Visual Cortex / Q000502:physiology*; D014796:Visual Perception / Q000502:physiology*
D016194:Receptors, N-Methyl-D-Aspartate