抄録
The aims of this study were to investigate seasonal effects on cutaneous thermal perception and differences between tropical and temperate natives (Japanese). Male tropical natives (n=7) and male Japanese (n=11) participated in this study. Their cutaneous thermal thresholds for warm and cool sensations were measured during 4 seasons. Our results showed that: (1) Tropical natives were less sensitive to warmth and cold than Japanese: (2) In the Japanese group, there were significant seasonal differences, and that they were more sensitive to cold in summer than winter: (3) In the tropical group, the cutaneous warm/cold sensitivity levels of heat acclimatized tropical natives were retained after residence of at least 42 months, and were not affected by seasonal variations in Japan.