RT Journal Article
SR Electronic
T1 Linearity of summation of synaptic potentials underlying direction selectivity in simple cells of the cat visual cortex
JF Science
JO Science
FD American Association for the Advancement of Science
SP 1901
OP 1904
DO 10.1126/science.8266083
VO 262
IS 5141
A1 Jagadeesh, B
A1 Wheat, HS
A1 Ferster, D
YR 1993
UL http://science.sciencemag.org/content/262/5141/1901.abstract
AB Intracellular recordings from simple cells of the cat visual cortex were used to test linear models for the generation of selectivity for the direction of visual motion. Direction selectivity has been thought to arise in part from nonlinear processes, as suggested by previous experiments that were based on extracellular recordings of action potentials. In intracellular recordings, however, the fluctuations in membrane potential evoked by moving stimuli were accurately predicted by the linear summation of responses to stationary stimuli. Nonlinear mechanisms were not required.