Visual Discrimination of Movement: Midbrain or Forebrain?

Science  25 Dec 1970:
Vol. 170, Issue 3965, pp. 1428-1430
DOI: 10.1126/science.170.3965.1428


Monkeys whose optic chiasm and forebrain commissures had been sectioned and control monkeys with only the optic chiasm cut were tested for interocular transfer of discriminations based on direction of movement. Only the control animals showed transfer to the untrained eye, which suggests that discrimination of movement, like pattern, is a function strongly dependent on the cortex.