Abstract
Electroencephalograms were obtained from 17 normal, adult [male][male]. Monopolar recording from electrodes on the scalp gave a truer representation of the amt. of [alpha] activity over the 2 hemispheres of the cerebral cortex than did bipolar recording. Evidence was presented which showed that the 2 cerebral hemispheres were relatively independent of each other, and that the [alpha] rhythm might arise in all regions of the cerebral cortex. Theoretical implications of the exptl. findings were discussed.

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