Miller J, Riehle A, Requin J
Department of Psychology, University of California, San Diego, La Jolla 92093-0109.
J Exp Psychol Hum Percept Perform. 1992 Nov;18(4):1121-38. doi: 10.1037//0096-1523.18.4.1121.
Observations of single neurons in the primary motor cortex of 1 monkey provided evidence that preliminary perceptual information reaches the motor system before perceptual analysis is complete. Neurons were recorded during a task in which 1 stimulus was assigned to a wrist flexion response and another was assigned to wrist extension. Two stimuli were assigned to a no-go response; each was visually similar to either the flexion or the extension stimulus. When a no-go stimulus was presented, neurons responded with weaker versions of the discharge patterns exhibited to the visually similar stimulus requiring a movement, suggesting that neurons receive partial perceptual information favoring that movement. Functionally separable neuronal populations were identified, and differences in the activations of these provide evidence about the functional effects of preliminary perceptual output on movement control processes.
对1只猴子初级运动皮层单个神经元的观察提供了证据，表明在知觉分析完成之前，初步的知觉信息就已抵达运动系统。在一项任务中记录神经元活动，该任务中1种刺激被指定为手腕弯曲反应，另1种刺激被指定为手腕伸展。两种刺激被指定为禁止反应；每种在视觉上都与弯曲或伸展刺激相似。当呈现禁止刺激时，神经元的反应是对需要运动的视觉相似刺激所表现出的放电模式的较弱版本，这表明神经元接收到了有利于该运动的部分知觉信息。识别出了功能上可分离的神经元群体，这些群体激活的差异为初步知觉输出对运动控制过程的功能影响提供了证据。
