Abstract
Recent studies have reported that women exhibit elevated preferences for behavioral dominance in potential mates on higher fertility days of the menstrual cycle. This study was designed to test which hormonal signals may be associated with such cycle phase shifts in dominance preferences. Women indicated their mate preferences for dominant personality traits, and self-reported cycle day was used to estimate each woman’s levels of estrogen, FSH, LH, progesterone, prolactin, and testosterone on her day of testing. Women’s preferences for dominance in long-term mates were elevated on cycle days when estrogen is typically elevated, including during the luteal phase when conception is not possible. Preferences for dominance in short-term mates were highest on cycle days when LH and FSH are typically peaking. These findings support the existence of two types of hormone-regulated psychological mechanisms, each of which is proposed by a distinct functional theory of menstrual phase preference shifts: (1) a between-cycle mechanism that increases preferences for dominance in long-term mates during more fertile cycles characterized by higher estrogen, and (2) a within-cycle mechanism that couples enhanced preferences for dominance in short-term mates to the timing of ovulation.
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