抄録
We are studying the effects of different vertical indoor air temperatures on physiological and psychological responses and working performance. In our previous paper, thermal discomfort rarely occurred in the 'head cool and foot warm' condition. However, it was shown that performance might deteriorate in this condition. The current experiment also used an air-conditioning box in a climatic chamber. Eight male and eight female subjects were exposed to four conditions where the upper part of body was a constant temperature (25℃) and the lower parts were 16℃, 19℃, 22℃, 25℃, respectively. In the 'foot cool and head warm' condition, thermal discomfort occurred more in female subjects than males. The rate of correct answers to a memory search task by females was higher than males at 25℃, but lower at 22℃ or below.