Homan R W, Herman J, Purdy P
Electroencephalogr Clin Neurophysiol. 1987 Apr;66(4):376-82. doi: 10.1016/0013-4694(87)90206-9.
We employed CT scanning to correlate scalp markers placed according to the international 10-20 system with underlying cerebral structures. Subjects were 12 normal volunteers. Measurements included assessment for cranial asymmetry to determine the effect of skull asymmetry on cortical location of electrodes. Results were correlated with the cortical histological map of Brodmann. Primary cortical locations agree well with previously published data and provide cortical localization in greater detail than previous studies. Variability of cortical electrode location was substantial in some cases and not related to cranial asymmetry. The results indicate that CT scanning or other neuroimaging techniques which reveal detailed cerebral anatomy would be potentially highly useful in defining the generators of electrocerebral potentials recorded from the scalp.
我们采用CT扫描，将根据国际10-20系统放置的头皮标记与潜在的脑结构进行关联。受试者为12名正常志愿者。测量包括评估颅骨不对称性，以确定颅骨不对称对电极皮质位置的影响。结果与布罗德曼皮质组织学图谱相关。主要皮质位置与先前发表的数据吻合良好，并且比以往研究更详细地提供了皮质定位。在某些情况下，皮质电极位置的变异性很大，且与颅骨不对称无关。结果表明，能够揭示详细脑解剖结构的CT扫描或其他神经成像技术，在确定从头皮记录的脑电活动电位的产生源方面可能非常有用。
