Atsuko Matsuo

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PURPOSE By means of the intraoperative electrophysiologic observation, we reevaluated the "transfer" theory that a transcallosal volley invoked by a cortical spike discharge in one hemisphere directly causes its contralateral counterpart via the corpus callosum (CC). METHODS Twenty-six patients who underwent corpus callosotomy were the subjects of this(More)
OBJECTIVE Corpus callosotomy tends to decrease seizure frequency and severity rather than transforming the seizure pattern from a generalized form into a lateralized or a partial one. The finding implies that bisection of the corpus callosum (CC) disrupts the epileptogenicity itself. In order to gain further insight into the possible role played by the CC(More)
1 Is a cortical spike discharge " transferred " to the contralateral cortex via the corpus callosum? : An intraoperative observation of electrocorticogram and callosal compound action potentials Abstract Purpose: By means of the intraoperative electrophysiological observation, the authors reevaluated the " transfer " theory that a transcallosal volley(More)
Objective: Corpus callosotomy tends to decrease seizure frequency and severity rather than transforming the seizure pattern from a generalized form into a lateralized or a partial one. The finding implies that bisection of the corpus callosum (CC) disrupts the epileptogenicity itself. In order to gain further insight into the possible role played by the CC(More)
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