Fig. 1.

Electroencephalogram findings. A. An electroencephalogram recorded during remission of psychosis at the first visit to our hospital. Sporadic sharp waves are evident at F8 and T4 and also at F7 and T3, though rarely. B. An electroencephalogram recorded during IIP. Frequent independent bitemporal sharp waves are evident and are particularly remarkable on the left side. C. An electroencephalogram recorded during PIP. Frequent independent bitemporal sharp waves are evident and are particularly remarkable on the left side. D. An electroencephalogram recorded during remission of psychosis after starting lamotrigine. Epileptiform discharge remarkably decreased, and only right temporal sharp waves are evident.