[通过微刺激对白鼠运动皮层进行功能映射]

[Functional mapping of the motor cortex in the white mouse by microstimulation].

作者信息

Pronichev I V, Lenkov D N

出版信息

Fiziol Zh Im I M Sechenova. 1996 Jul;82(7):28-35.

Abstract

Motor representations of the face muscles and muscles of limbs were determined by means of intracortical microstimulation (ICMS) in 33 anaesthetized white mice. ICMS evoked mostly ipsilateral motor responses of facial muscles and contralateral motor responses of forelimb and hindlimb. Clear asymmetry of the face muscles's motor representation was found using low-threshold stimulation in left and right hemispheres. Hindlimb's motor responses to ICMS in rostral areas of frontal neocortex were observed and it indicates the presence of multiple motor representations in the mouse neocortex.

摘要

通过对33只麻醉的小白鼠进行皮质内微刺激（ICMS），确定了面部肌肉和肢体肌肉的运动表征。ICMS主要诱发面部肌肉的同侧运动反应以及前肢和后肢的对侧运动反应。使用左右半球的低阈值刺激发现面部肌肉的运动表征存在明显不对称。观察到额叶新皮质前部区域对ICMS的后肢运动反应，这表明小鼠新皮质中存在多个运动表征。

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