Sparks D L
Brain Res. 1978 Nov 3;156(1):1-16. doi: 10.1016/0006-8993(78)90075-6.
One class of superior colliculus neuron was isolated which meets two criteria for participation in the initiation of visually elicited saccades. First, the pulse of spike activity recorded from these neurons was tightly coupled to saccade onset, preceding the onset of eye movements by approximately 20 msec. Secondly, if a visual stimulus sometimes elicited a saccade and sometimes failed to elicit a saccade, the occurrence of the spike pulse was highly correlated with saccade occurrence. For these neurons, there was a clear distinction between the most vigorous neuronal activity occurring in the absence of a saccade and the least vigorous activity accompanying appropriate saccades. These findings are consistent with views which attribute to the superior colliculus a role in the initiation of visually elicited saccades.
分离出了一类上丘神经元，这类神经元满足参与视觉诱发扫视启动的两个标准。首先，从这些神经元记录到的脉冲状放电活动与扫视开始紧密相关，在眼球运动开始前约20毫秒出现。其次，如果视觉刺激有时引发扫视而有时未能引发扫视，那么脉冲状放电的出现与扫视的发生高度相关。对于这些神经元而言，在没有扫视时发生的最强烈的神经元活动与伴随适当扫视时的最不强烈活动之间存在明显区别。这些发现与认为上丘在视觉诱发扫视启动中起作用的观点一致。
