LOCATION OF HEAT-SENSITIVE REGION IN HUMAN SKIN

Heat sensitive points on the body skin were investigated in the course of psychophysiological research using thermal and mechanical stimulation on 98 volunteers residing under conditions of pronounced continental climate, in the town of Alma-Ata, with an age range of 20 to 46. Heat sensitive and cold sensitive points were divided into four and two classes respectively on the basis of minimum arousal threshold and nature of the sensation. Receptors of each class were located in the skin at the areas of greatest concentration. Comparison of the thermal range of activity and numbers of active points at different cutaneous sites in humans revealed their differing capacity for perception of different temperature levels.