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手部肌肉振动对人体体感诱发电位的影响:薄束与脊髓小脑传入之间的相互作用?

The effect of hand muscle vibration on the somatosensory evoked potential in man: an interaction between lemniscal and spinocerebellar inputs?

作者信息

Abbruzzese G, Abbruzzese M, Favale E, Ivaldi M, Leandri M, Ratto S

出版信息

J Neurol Neurosurg Psychiatry. 1980 May;43(5):433-7. doi: 10.1136/jnnp.43.5.433.

Abstract

The effect of hand muscle mechanical vibration on the somatosensory potential (SEP) evoked by median nerve stimulation, was investigated in 10 healthy subjects. A marked decrease in the amplitude of the N17, N20 and P25 components of the cerebral SEP was observed, while the S11 and S13 components of the cervical response did not change. The amplitude reduction of the SEP components was larger when low frequency vibration was used. Recordings performed after cooling the hand further suggest that the reduction of the amplitude of the SEP components induced by vibration is likely to depend on activation of muscle receptors. These findings could reflect an interaction between limniscal and spino-cerebellar inputs, possibly occurring at the thalamo-cortical levels, a concept compatible with the hypothesis that muscle spindle afferents do contribute to kinaesthesia or position-sense.

摘要

在10名健康受试者中,研究了手部肌肉机械振动对正中神经刺激诱发的体感诱发电位(SEP)的影响。观察到大脑SEP的N17、N20和P25成分的振幅显著降低,而颈部反应的S11和S13成分没有变化。使用低频振动时,SEP成分的振幅降低更大。手部冷却后进行的记录进一步表明,振动引起的SEP成分振幅降低可能取决于肌肉感受器的激活。这些发现可能反映了边缘系统和脊髓小脑输入之间的相互作用,可能发生在丘脑皮质水平,这一概念与肌肉纺锤体传入神经确实有助于运动觉或位置觉的假设相一致。

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The effect of cooling on mammalian muscle spindles.冷却对哺乳动物肌梭的影响。
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Muscle afferents and kinaesthesia.肌肉传入神经与动觉
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