Tanji J, Kurata K
Neurosci Lett. 1979 May;12(2-3):201-6. doi: 10.1016/0304-3940(79)96062-2.
Monkeys were trained to perform two different motor acts, one involving muscle activity in distal forelimb muscles and the other in proximal forelimb and shoulder girdle muscles. After confirming spatial and temporal dissociation of muscle activity in the two motor acts, single unit activity in the supplementary motor area (SMA) was recorded. SMA neurons related with the distal and proximal forelimb movements were found to be arranged rostrocaudally with a considerable overlap. In the overlapping region, neurons related with the distal movement were located more deeply.
猴子被训练执行两种不同的运动行为，一种涉及前肢远端肌肉的肌肉活动，另一种涉及前肢近端和肩胛带肌肉的肌肉活动。在确认两种运动行为中肌肉活动的空间和时间分离后，记录了辅助运动区（SMA）的单单位活动。发现与前肢远端和近端运动相关的SMA神经元按前后顺序排列，有相当大的重叠。在重叠区域，与远端运动相关的神经元位置更深。
