Mass A M
Zh Evol Biokhim Fiziol. 1976 May-Jun;12(3):272-9.
Studies have been made on the reaction of single neurons of the superior colliculus to stationary and moving visual stimuli in immobilized squirrels. The main bulk of collicular units (59%) is not directionally selective, 11%--exhibit high directional selectivity and 30%--were found to be relatively selective. Most of the cells (85%) "prefer" high speed of stimulus motion. Optimal speed for these neurons is equal to 30--100 degree/sec. Testing by a stationary light spot (0.5degree in diameter), reveals different structure of the receptive fields with various types of "on"-and "off"-inputs. Lateral inhibition was observed in the receptive fields with both uniform organization and separated "on" and "off" areas.
已经对固定松鼠中脑上丘单个神经元对静止和移动视觉刺激的反应进行了研究。大部分上丘神经元（59%）没有方向选择性，11%表现出高方向选择性，30%被发现具有相对选择性。大多数细胞（85%）“偏好”刺激运动的高速。这些神经元的最佳速度等于30-100度/秒。用直径0.5度的静止光斑进行测试，发现具有各种“开”和“关”输入类型的感受野结构不同。在具有均匀组织以及分离的“开”和“关”区域的感受野中都观察到了侧向抑制。
