[105]
Since music thus directly and powerfully affects the chief vital
processes, it is not surprising that it should indirectly influence
various viscera and functions. As Tarchanoff and others have demonstrated,
it affects the skin, increasing the perspiration; it may produce a
tendency to tears; it sometimes produces desire to urinate, or even actual
urination, as in Scaliger's case of the Gascon gentleman who was always
thus affected on hearing the bagpipes. In dogs it has been shown by
Tarchanoff and Wartanoff that auditory stimulation increases the
consumption of oxygen 20 per cent., and the elimination of carbonic acid
17 per cent.
In addition to the effects of musical sound already mentioned, it may be
added that, as Epstein, of Berne, has shown,[106] the other senses are
stimulated under the influence of sound, and notably there is an increase
in acuteness of vision which may be experimentally demonstrated. It is
probable that this effect of music in heightening the impressions received
by the other senses is of considerable significance from our present point
of view.
Why are musical tones in a certain order and rhythm pleasurable? asked
Darwin in _The Descent of Man_, and he concluded that the question was
insoluble.
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