Hari R, Ahonen A, Forss N, Granström M L, Hämäläinen M, Kajola M, Knuutila J, Lounasmaa O V, Mäkelä J P, Paetau R
Low Temperature Laboratory, Helsinki University of Technology, Espoo, Finland.
Neuroreport. 1993 Oct 25;5(1):45-8. doi: 10.1097/00001756-199310000-00011.
Whole-head magnetoencephalographic recordings revealed two parietal epileptic foci in homotopic areas of the hemispheres. The discharges occurred 17-20 ms later on the left than on the right hemisphere, implying the existence of a left-sided mirror focus. The foci were about 1 cm posterior to the hand primary somatosensory area, identified by evoked response measurements, and thus suggested epileptic activity at the parietal association cortex, in agreement with the observed callosal conduction time.
全脑磁脑图记录显示，在大脑半球的同位区域有两个顶叶癫痫病灶。左侧半球的放电比右侧半球晚17 - 20毫秒，这意味着存在左侧镜像病灶。通过诱发反应测量确定，这些病灶位于手部初级体感区后方约1厘米处，因此提示顶叶联合皮质存在癫痫活动，这与观察到的胼胝体传导时间一致。
