Conditioning changes in differential skin temperature.

8 male Ss were presented with visual and auditory analog feedback regarding the difference between forehead and finger temperature. 4 Ss were instructed to raise the temperature of their finger in comparison with the forehead, while a second group of 4 Ss was instructed to lower the temperature of their finger in comparison with the temperature of the forehead. After 12 15-min. training sessions all Ss were able to produce changes in differential skin temperature in the specified direction. Differential changes in skin temperature correlated highly with changes in absolute finger temperature. These results are discussed as relevant to the clinical application of skin temperature control.