The pathology of emotions : physiological and clinical studies / by Ch. Féré ; rendered into English by Robert Park.

  • Charles Féré
Date:
1899
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Licence: Public Domain Mark

Credit: The pathology of emotions : physiological and clinical studies / by Ch. Féré ; rendered into English by Robert Park. Source: Wellcome Collection.

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    in tlie compressed air apparatus used by divers in working under water : or lor therapeutic purposes. Iu the first the pressure varies in general from two to four atmospheres, in the second it scarcely exceeds one, and frequently it is not used above one-quarter. Under the influence of this augmentation the movements are easier: * the efforts bring less quickly the sense of suffocation (l’essouflement); in spite of the abundance of sweats, thirst is little felt, the appetite is augmented. If the sojourn in the apparatus is prolonged exhaustion follows : to a species of intoxication at the beginning succeeds a physical and mental depression. I have observed that under an augmentation of pressure, even feeble in kind, (such as one obtains in aerotherapic apparatus), there is induced an augmentation of the muscular force simulta- neously with a diminution in the time of reaction; coinciding with a sensation of well-being. I shall have to return to these facts apropos of the physiology of attention. III. Man can support enormous variations of temperature. In certain countries of Africa temperatures of 50 deg. to 60 deg. C. It is observed that in the stokeholes of steamers which traverse the Ited Sea the temperature attains 65 deg., or even 75 deg.: we have observed experimentally that in dry stoves temperatures of 120 deg., and even 132 deg., can be supported during a short space of time. On the other hand, we have noted in Siberia temperatures of— 63 deg. Man can, therefore, live in temperatures differing almost as much as 200 deg. The regulation of animal heat which adapts itself to the environ- ment is dependent upon that part of the digestive process which furnishes the combustible to1 the machine; and, on the other hand, to the respiration which furnishes the oxygen, and accelerates or retards combustion; and the pulmonary and cutaneous transpira- tion which regulates the loss of caloric. In the process of heat loss, radiation, conductibility, and evaporation play a more or less pre- dominant role according to the circumstances. The movements of the air favour evaporation in proportion as the air is dry. In animals of a constant temperature the quantity of oxygen absorbed by the blood varies in inverse ratio to the temperature of the air they respire; the augmentation of the quantity of respired oxygen * I'oley. Du travail clans fair comprimi.
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