A method of evaluating the level of anxiety and/or truthfulness of a person may include measuring the skin temperature of the person at at least three regions of the skin of the person, requesting the person to supply information, measuring the skin temperature at the at least three regions while the person supplies the information, and measuring the skin temperature at the at least three regions after the person supplies the information. The level of anxiety and/or truthfulness of the person may be determined based at least partially on a combination of the difference between the measured skin temperature of the person before the information is supplied and the measured skin temperature of the person while the information is supplied, and the difference between the measured skin temperature of the person while the information is supplied and the measured skin temperature of the person after the information is supplied.
Method of evaluating level of anxiety of person based on skin temperature