Human Physiology, Vol. 4 of 5 (Classic Reprint)

Human Physiology, Vol. 4 of 5 (Classic Reprint) PDF Author: Luigi Luciani
Publisher: Forgotten Books
ISBN: 9781440049736
Category : Psychology
Languages : en
Pages : 544

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Book Description
Excerpt from Human Physiology, Vol. 4 of 5 Movement and Sensation are the two extremes of the processes of animal life by which the organism is brought into direct relation with the outer world. Movements are always objective in character and can be studied directly by external observation. Sensations are invariably subjective, and can only be directly analysed by introspection, and indirectly inferred from the expressional movements which are their external concomitants. It follows that the physiology of sensation in man is the necessary starting point for the comparative physiology of sensation in animals; and the intimate observation of our own consciousness is the only available basis for judging the psychical activities of animals or of other men. All organs of the body that are supplied with afferent nerves continually send information of their functional state to the central nervous system, and exert a reflex controlling influence along the efferent nerves without passing the threshold of consciousness. At other times they send to the centres messages which are not entirely subconscious, but emerge vaguely and indefinitely in consciousness as a more or less decided sense of well-being or the reverse. Or again, the messages from the different organs to the centres may definitely cross the threshold of consciousness and give rise to distinct sensations which differ in quality and intensity. 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.