A long-term study of the effects of electro-convulsions on the structure of the cerebral cortex.

In this study is described the quantitative structure of one circumscribed area of the cerebral cortex 2 months after a series of electro-consulsions. The results indicate a persistent change in the nuclear volume of the cerebral neurons in this area. There was no loss of neurons in the cortex. The changes described are diffuse in the cerebral cortex and not restricted to particular architectonic layers.