Analysis of brain activity during change of indoor thermal environment

Abstract

We measured brain activity during changing of indoor thermal environment with light stimulus by near-infrared spectroscopy. The experiment was composed of four parts (without-light trial, with-light trial [3000, 5000, 7200 k trial]) for the light stimulus. In the case of the 3000 k trial, the oxyHb level in the prefrontal cortex tended to increase earlier than the oxyHb level in the without-light trial when the room temperature increased. On the other hand, in the 6700 k trial, the oxyHb level tended to increase later than the oxyHb in the without-light trial.