“…During the ovulatory phase heterosexual women were more likely to initiate sexual intercourse (Adam, Gold, & Burt, 1978;Bullivant et al, 2004;Van Goozen, Wiegant, Endert, 8 Helmond, & Van de Poll, 1997) ; reported more auto-sexual activity (Harvey, 1987); were more sexually aroused by erotic films (Slob, Ernste, & van der Werff ten Bosch, 1991); rated men other than their current partner as more sexually attractive (Larson, Pillsworth, & Haselton, 2012); and were more prone to fantasize about or have sexual intercourse with men other than their primary partners (Gangestad, Thornhill, & Garver, 2002). One study using eye tracking reported an increase in mean pupil diameter for sexually significant stimuli of participants' actual sexual partners during the ovulatory phase (Laeng & Falkenberg, 2007). It would appear that controlling for menstrual cycle phase is an important consideration when testing women's attention towards sexually appealing or attractive stimuli.…”