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猕猴F2及F4区皮层神经元在图形引导的有序运动中放电活动的比较

沈丽敏, 陈郁初

中科院上海脑研究所.上海 200031

摘要

用细胞外记录的方法研究了猕猴在执行图形辨认引导的有序运动(FRS)时大脑皮层弓形沟距周围背外侧运动前皮层(PMd)F2区和腹外侧运动前皮层(PMv)F4区的放电活动。在FRS的暗示期,F2和F4区中分别有52%(39/75)和16.9%(13/77)的细胞发生放电变化;在触摸反应期,各有51%(38/75)和87%(67/77)的细胞发生放电变化,经统计检验,均有显著差异。F2区比F4区有更多细胞对FRS任务中的暗示信号发生放电反应,而F4区比F2区有更多细胞在执行触摸反应时发生放电反应。

关键词： 细胞活动; 有序运动; 背外侧运动前皮层; 腹外侧运动前皮层; 猕猴

Cell activities in primate areas F2 and F4 of the monkey during sequential motor task guided by recognition of figures

Shen Limin, Chen Yuchu

Shanghai Institute of Brain Research,Chinese Academy of Sciences.Shanghai 200031

Abstract

Single-unit activities were recorded in the area F2 of dorsal premotor cortex (PMd) and area F4 of ventral premotor cortex (PMv) while a monkey was performing a sequential motor task guided by recognition of figures (FRS). During the cue period, 52% (39/75) and 16.9% (13/77) of the task-related neurons exhibited changes in activities in the areas F2 and F4, respectively. During the touch period, 51% (38/75) and 87% (67/77) of the task-related neurons exhibited changes in activities in the areas F2 and F4, respectively. There were more cells responding to the cue signal in F2 than in F4. In contrast, there were more cells responding during the touch period in F4 than in F2. The present findings indicate that a lot of neurons in the PMd and PMv are differently involved in the FRS task.

Key words: Nitric oxide;Vasopressin oxytocin;Paraventricular;Nucleus ;

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引用本文：

沈丽敏, 陈郁初. 猕猴F2及F4区皮层神经元在图形引导的有序运动中放电活动的比较[J]. 生理学报 2000; 52 (1): .

Shen Limin, Chen Yuchu. Cell activities in primate areas F2 and F4 of the monkey during sequential motor task guided by recognition of figures. Acta Physiol Sin 2000; 52 (1): (in Chinese with English abstract).