J.Jpn. Surg. Soc.. 56(7): 910-915, 1955

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EXPERIMENTAL STUDIES OF EPILEPTIC SEIZURE ON THE BASIS OF MARCH OF MOVEMENT
Ⅱ. SPREADING MODE OF CONVULSIVE MOVEMENT ON SURGICAL INTERVENTION OF THE BRAIN

1. When the unilateral cerebral motor area is extripated or the corpus callosum is incised, only unilateral convulsion is elicited on stimulation which is strong enough to produce bilateral convulsion.
2. The stimulation on the motor area after incision of the internal capsule and nucleus Ientiformis has been reported not to produce convulsion. But the present report states that convulsion starts from the homolateral limb after a long latent period on a prolonged stimulation. In this case, extirpation of the contralateral motor area or incision of the rostral one third of the corpus callosum makes convulsion to cease.
The excitalion given to the motor ariea where an incision has been made on the nucleus lentiformis and internale capsul seems to pass through the rostral one-third of corpus callosum resulting in the deveIopment of convulsion by exciting the contralateral motor area.
(author's abstract)

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