Relationship of neuronal discharges in the precentral gyrus of monkeys to the performance of arm movements
Relationship of neuronal discharges in the precentral gyrus of monkeys to the performance of arm movements
复制标题
猴子中央前回神经元放电与手臂运动表现的关系
DOI：
10.1016/0006-8993(75)90507-7
复制
发表时间：
1975
期刊：
影响因子：
2.9
通讯作者：
M. Lewis
中科院分区：
文献类型：
--
作者：
R. Porter;M. Lewis
对162个锥体束神经元进行了记录，这些神经元释放的神经脉冲与猴子的刻板运动任务的表现有典型的时间联系。对神经元放电和自由运动之间关系的临床评估导致这样一种观点，即每个细胞的放电与运动表现的一个特征方面和一组特定肌肉的收缩有关。对这些关系的定量评估得出的结论是，运动单元对运动任务的招募编码可能是由向这些运动神经元目标放电的锥体束神经元的数量决定的。锥体束神经元的斜坡“招募”比斜坡力的发展早了大约100毫秒。这一一般性结论得到了对单个动物的观察的支持，在单个动物中，中枢前神经元的有序放电与刻板运动表现的关系是明显的。
Recordings have been made from 162 pyramidal tract neurones which discharged bursts of nerve impulses in characteristic temporal association with performances of a stereotyped motor task by monkeys. Clinical evaluation of the relationship between discharges of the neurones and free movement led to the view that each cell's firing was associated with a characteristic aspect of movement performance and the contraction of a particular group of muscles. Quantitative evaluation of these relationships led to the conclusion that coding of the recruitment of motor units to the movement task could have been conferred by the number of pyramidal tract neurones discharging to those motoneurone targets. A ramp of ‘recruitment’ of pyramidal tract neurones preceded the development of a ramp of force by about 100 msec. This general conclusion was supported by the observations made in a single animal in which orderly discharge of precentral neurones in relation to a stereotyped movement performance was clearly evident.