Kwan H C, MacKay W A, Murphy J T, Wong Y C
Neurosci Lett. 1981 Jul 2;24(2):123-8. doi: 10.1016/0304-3940(81)90234-2.
Unit recordings were made from areas 4 and 6 monkeys after they were trained to align a cursor over a vertical target line on a video screen by control of a manipulandum with wrist flexion or extension movement. The appearance of the cursor and line on the screen was the visual cue for movement. Responses were observed 150 (+/- 40) msec after cue presentation. The responses were found only in the forelimb area of precentral cortex, which was most immediately involved in the control of the task, and the majority of them were uncorrelated with either the specific details of the visual cue, or with the direction of the subsequent wrist movement.
在训练猴子通过手腕屈伸运动控制操作手柄将光标对准视频屏幕上的垂直目标线之后，从4区和6区进行了单位记录。屏幕上光标的出现和线条是运动的视觉线索。在呈现线索后150（±40）毫秒观察到反应。这些反应仅在前中央回的前肢区域被发现，该区域最直接参与任务的控制，并且它们中的大多数与视觉线索的具体细节或随后手腕运动的方向均无关。
