Abstract
In daily life, the perception of warm and cold sensations is perceived by receiving warm and cold stimulation of various intensities. Creating an environment that perceives warm or cool is useful, but an environment that is too warm or too cool is an unpleasant environment. Therefore, it is necessary to measure the temperature at which one begins to perceive the warm and cold stimulation and the temperature at which one perceive the warm and cold stimulation as unpleasant. In this study, a subject experiment was conducted with subjects born and raised in regions with different thermal environments. As a result, for each subject born and raised in different regions, the temperature difference at which one begins to perceive the warm and cold stimulation and the temperature difference at which one perceive the warm and cold stimulation as unpleasant were grasped. the temperature difference at which one begins to perceive the warm and cold stimulation was largely influenced by the sensitivity of the cold receptors themselves, and regional differences were relatively small. However, the temperature difference at which one perceive the warm and cold stimulation as unpleasant was influenced by environmental history, with greater regional differences.
