March 29, 1930


JAMA. 1930;94(13):1006-1007. doi:10.1001/jama.1930.02710390104016

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Lectures in Paris by Professor Cannon  Prof. Walter Bradford Cannon of Harvard University has been delivering a series of five lectures at the Faculté de médecine, in which he expounded his research on the physiology of the emotions. The first lecture, delivered in the presence of the dean and the professors of the faculty of medicine, dealt with the physiologic changes that accompany strong emotion, through sympathicosuprarenal excitation. In his second lecture Professor Cannon took up the interpretation of emotional reactions from the standpoint of their utility, preparing the animal for flight, increasing the dextrose in the blood, which is needed for muscular effort, and increasing oxygenation, which makes possible the destruction of lactic acid produced by the work of the muscles. Thus a great increase of strength results. The speaker locates in the thalamic region of the brain the central control of the emotions. Phylogenetically the thalamus is the

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