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April 30, 1887


JAMA. 1887;VIII(18):489-491. doi:10.1001/jama.1887.02391430013004

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If a man perform work with the muscles of, for example, his right hand exclusively, and to the point of fatigue, can he thereafter perform as much work of the same nature, with the left hand as he could if the right hand had not been previously exercised? Such is the question discussed by Dr. N. A. Randolph before the College of Physicians of Philadelphia on March 2. The question does not relate to a comparison of the work of the two hands, but to an examination of the work which may be done by one hand as conditioned by the previous exercise or non-exercise of its fellow; and it is clear that the answer to question depends solely on intracranial processes, and that the answer would throw light on the functional independence or interdependence of the two halves of the brain. And to answer the question two conditions are

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