Abstract
The effects of the unilateral lesion of the lateral geniculate body on the spontaneous EEGs and visual evoked responses were studied to learn the decomposition of high-order nervous activity. The results obtained showed inhibitory effects on EEGs and visual evoked responses at the middle lateral gyrus (L3) and fascilitatory effects on those at the lateral suprasylvian gyrus(SS2). There were fascilitatory effects on those at the posterior sylvian gyrus in the somesthetic area and inhibitory effects on the centro-medianus in one of the unspecific areas.