The action of brief polarizing currents on the cerebral cortex of the rat (1) during current flow and (2) in the production of long‐lasting after‐effects

During the course of work on the effects of polarizing currents on the electrical activity of the rat cerebral cortex, we found that prolonged changes in the level of cortical activity could be produced by relatively brief periods of polarizing. This paper describes the after-action of transcortical polarizing current upon the activity evoked by stimulating the forepaw and upon spontaneous firing in cortical neurones.

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