Directional tunings independent of orientation in the primary visual cortex of the cat.
A family of moving 'random-line' patterns was developed and used to study the directional tuning of 91 single units in cat primary visual cortex (V1). The results suggest that, in addition to the well-known orientation-dependent mechanism, there is also some kind of orientation-independent mechanism underlying the direction selectivity. The directional tuning of the neurons varies in accordance with the increase of orientation or non-orientation element in the stimulus.
Chen
Y
Y
Institute of Biophysics, Chinese Academy of Sciences, Beijing, China.
Li
B
B
Li
B
B
Diao
Y
Y