On The Physiology Of The Semicircular Canals And Their Relation To Seasickness PDF Download

Excerpt from On the Physiology of the Semicircular Canals and Their Relation to Seasickness Six years ago the author undertook to write an arti cle on the etiology of seasickness. Not satisfied with a mere expression of views without appeal to experimental fact, and believing that the semicircular canals were in some way involved in the causation of the malady, he undertook of his own suggestion and forethought, a series of experiments using rotations, aural irrigations, stimula tion of the retina by strong light, galvanism applied to the mastoid areas, etc., to determine whether by such means phenomena resembling those of seasickness could be experimentally reproduced. The results of his earliest experiments fulfilled his expectations to such an extent, that he proceeded to a thorough study of the semicircular canals, as affected by rotations, aural irrigations and gal vanism. The phenomena of nystagmus and the displacements of the head that occur in rotations, aural irrigations, and galvanism applied to the mastoid areas, were observed by him independently and the mechanisms involved in their production studied and worked out before he had any information of the work done by Barany, Neumann and others. He makes therefore, no pretensions for this part of his work on the score of priority in time, but submits it to the profession in the hope that the work will speak for itself. Armed with the knowledge and experience gained from a thorough study of the sickness produced by rotations. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.