Origin of somatosensory evoked scalp responses in man.
Origin of somatosensory evoked scalp responses in man.
复制标题
人类体感诱发头皮反应的起源。
DOI：
10.3171/jns.1969.31.2.0117
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发表时间：
1969
影响因子：
4.1
通讯作者：
S. Goldring
中科院分区：
文献类型：
--
作者：
P. E. Stohr;S. Goldring
由于从头皮记录的体感诱发电位与直接从大脑（动物或人）产生的体感诱发电位之间的相似性，头皮反应的早期部分被认为来自初级感觉区域，晚期部分更广泛地起源于相关区域或顶点的中线皮层。 2,5-1~ 然而，这些假设是否正确，是否存在同侧和对侧皮质贡献，或者整个头皮反应是否仅源自对侧初级感觉区，这些问题仍然悬而未决，本文将讨论这些问题。该研究以一组接受选择性皮质消融治疗癫痫的患者为中心。为了我们的目的，它们提供了一个独特的机会，因为有些需要单独切除体感手部区域，或者与其他组织一起切除，从而使我们能够将这种消融对头皮反应的影响与其他脑切除的效果进行比较。此外，在手术过程中，对整个暴露区域进行了多次皮质记录，以识别能够产生体感反应的所有皮质区域。将这些皮质反应与同时引发的头皮电位进行比较提供了额外的重要信息。方法
ECAUSE of similarities between somatosensory evoked potentials recorded from the scalp and those arising directly from the brain (animal or man), early components of the scalp response have been thought to arise from the primary sensory area, late ones to originate more diffusely in associated areas or midline cortex at the vertex. 2,5-1~ However, whether these assumptions are correct, whether there is an ipsilateral as well as a contralateral cortical contribution, or whether the entire scalp response derives only from the contralateral primary sensory area, are questions which remain unanswered and with which this paper will deal. The study centers on a group of patients who had selective cortical ablations for epilepsy. For our purpose they afforded a unique opportunity in that some required excision of the somatosensory hand area, either alone, or in addition to other tissue, thus enabling us to compare the effects of such ablations, on the scalp response, with that of other cerebral excisions. Also, during surgery multiple cortical recordings were made from the entire exposed field to identify all cortical areas that are capable of generating a somatosensory response. Comparison of these cortical responses with scalp potentials that were elicited simultaneously provided additional important information. Methods