抄録
Physiological polytypism is very difficult keyword, but it is important to clear this keyword. I will try to show possible approach to physiological polytypism from the study of the non-visual effects of light and circadian rhythm, one of the main areas of physiological anthropology. First, I will show the importance and limitations to study variation in data for physiological responses to light. Next, I will show possible approaches to identify physiological polytypism underlying circadian rhythm and sleep regulation.
