The measurement of female sexual arousal within the primary research as well as in clinical practice suffers from several difficulties. In particular, the discrepancy between subjectively perceived sexual excitement and physiological arousal (e.g. change in vaginal pulse amplitude or in vaginal temperature) was found.
Moreover, the enormous variability in subjective preferences of women for male stimuli appearance together with their low sexual reactivity to static visual erotic stimuli contribute to the fact that standardized set of erotic stimuli for women is recently not available.