摘要
在２０例健康受试者中进行４０次主动手指活动（ＡＭＴ）试验，研究ＡＭＴ对短潜伏期体感诱发电位（ＳＬＳＥＰ）顶、中央成份的影响。结果：ＡＭＴ对ＳＬＳＥＰ各波峰潜伏期没有影响，对颈髓电位Ｎ１３，远场电位Ｐ１４、Ｎ１８及顶部电位Ｎ２０波幅没有抑制，而中央前成份Ｐ２２、Ｎ３０及顶成份Ｐ２５明显受抑制。认为：ＡＭＴ对ＳＬＳＥＰ的抑制作用属一种运动闸门作用，其部位可能在运动皮层。
Shortlatencysomatosensoryevokedpotentials(SL SEP)wererecordedduringactivefingermovement(AMT)in20healthymen(40tests)andefectsofactivefingermovementonparietalandfrontalcomponentofSL SEPswerestudied.ItwasshownthatthepeaklatencyofeachcomponentofSL SEPwerenotchangedduringAMT.TheamplitudeofcervicalpotentialN18,farfieldpotentialP14,Nl8andparietalcomponentN20werealsonotinhibited.However,theamplitudeofprefrontalcomponentP22N30,parietalcomponentP25weresignificanthyinhibited.Itisconcludedthattheinhi bitionofAMTonSL SEPisconsideredasmovementgatingwhichmaybelocatedinmotorcortexarea.
出处
《中国应用生理学杂志》
CAS
CSCD
1996年第4期321-323,共3页
Chinese Journal of Applied Physiology
关键词
运动闸门
短潜伏期
体感诱发电位
神经生理学
movementgating
shortlatencysomatosensoryevokedpotential
activefingermovement
