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Article
August 10, 1912

The Physiology of the Semicircular Canals and Their Relation to Seasickness.

JAMA. 1912;LIX(6):469. doi:10.1001/jama.1912.04270080151040

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Abstract

The first 336 pages of this interesting book are devoted to a discussion of the anatomy and physiology of the labyrinth with its incoming and outgoing tracts, inclusive of the sympathetic or autonomic nervous system. In the remainder of the volume the author explains in detail the mechanism and the rationale of the new tests of rotation, caloric and galvanic stimulation of the labyrinthine structures, all of which he utilized in order to produce experimentally a series of symptoms akin to seasickness. In addition he studied the effects of seasickness itself on circulation, respiration and digestion during several transatlantic voyages, of which he made careful daily records. Coroelating his own experimental findings with the actual symptoms of seasickness as observed by himself and others, he concludes that their cause is to be found in the labyrinthine structures. He believes that seasickness in ordinary conditions of health is primarily the response

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