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May 9, 1914


JAMA. 1914;LXII(19):1476-1477. doi:10.1001/jama.1914.02560440032012

Aside from its purely scientific interest the study of the cutaneous sensations has a direct bearing on the every-day experiences of practical medicine. Not long ago the essential function of the sensory nerves of the skin was conceived of as relating almost solely to the sensation of touch. Little by little our knowledge has been extended and it has been shown that these nerves mediate a number of qualities of sensation, such as pressure, warmth, pain, heat and cold. It is established to-day that the cutaneous senses are not distributed uniformly over the whole skin, but are associated with discrete points or spots. The warm and cold spots, for example, have a distinctly punctiform distribution. Not a little effort has been expended by physiologists in mapping this out; in measuring the delicacy of some of these senses in various regions of the skin; in determining the threshold stimulus and the

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