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July 31, 1937

Die bioelektrischen Erscheinungen der Hirnrindenfelder mit allgemeineren Ergebnissen zur Physiologie und Pathophysiologie des zentralnervösen Griseum

JAMA. 1937;109(5):386. doi:10.1001/jama.1937.02780310064035

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This important and scholarly monograph deals with the fluctuating electrical currents that can be registered with suitable apparatus when terminals (either silver wires or porous bootelectrodes) are applied to the brains of animals under local anesthesia. Many of the illustrations are specimens of curves so obtained from monkeys and cats. Human encephalograms also are discussed; the Berger rhythm, seen when electrodes are applied to the intact skin either occipitofrontally or bitemporally, is discussed on page 79. In particular the author studied the cyto-architectonics of the cerebral cortex as related to the wave forms obtained from various regions. Thus area 17 of the occipital lobe gives action currents in response to visual stimuli, but if one shifts the electrode beyond the boundary of this cytologically homogeneous region into an adjacent but different region, say area 18, the currents change. The difficult question of cerebral localization is taken up in the final

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