Thermographic measurement of sexual arousal: a discriminant validity analysis.

Thermographic measurement was discovered to be a valid method for assessing human sexual arousal, in that it achieved adequate discriminant validity and that it covaried with self-reports of sexual arousal. The advantages of this procedure over other physiological methods are that it provides a thermogram indicating flow rate and transfer of heat, allows for cross-gender comparisons, and is a more ecologically valid method of assessing sexual arousal.