Abstract
This study investigated the effect of sweat secretion on negative and positive skin potential responses. In Experiment 1, the relationship between the rate of negative skin potential amplitude in the skin potential response (negative component rate) and the latency from the onset of the skin potential response to the sweating response (SPR-sweating latency) were determined. Six students participated in Experiment 1. Student's t-test indicated that the lower was the negative component rate, the shorter was the SPR-sweating latency. This result suggests that the less negative component shortens the SPR-sweating latency. In Experiment 2, the influence of the amount of sweat in the ducts on the positive component was investigated to clarify whether the presence of sweat in the ducts was important for the efficient secretion of sweat. Eight students participated in Experiment 2. It was found that when the ducts were saturated with sweat, the positive monophasic wave increased. Based on these results, we have developed an efficient-sweating model. ( Japanese Journal of Physiological Psychology and Psychophysiology, 23 (3) : 217-226, 2005.)
