[Study of histoenzymologic signs of selective neuronal hyperactivity].

Injection of kainic acid into the cerebellum leads to a neuroexcitatory and neurotoxic effect on neurons connected with cerebellar granule cells. Observation of the activities of dehydrogenases taking part in glucose metabolism and glutamate dehydrogenase shows that Purkinje cells undergo a rapid destruction. Lesions of small stellate cells come later.