Christine E. Garver-Apgar

Women's Preferences for Male Behavioral Displays Change Across the Menstrual Cycle

Women prefer both the scent of symmetrical men and masculine male faces more during the fertile (late follicular and ovulatory) phases of their menstrual cycles than during their infertile (e.g., luteal) phases. Mens behavioral displays in social settings may convey signals that affect womens attraction to men even more strongly. This study examined shifts in womens preferences for these behavioral displays. A sample of 237 normally ovulating women viewed 36 or 40 videotaped men who were competing for a potential lunch date and then rated each mans attractiveness as a short-term and a long-term mate. As predicted, womens preference for men who displayed social presence and direct intrasexual competitiveness increased on high-fertility days relative to low-fertility days, but only in a short-term, not a long-term, mating context. These findings add to the growing literature indicating that womens mate preferences systematically vary across the reproductive cycle.

Major Histocompatibility Complex Alleles, Sexual Responsivity, and Unfaithfulness in Romantic Couples

Preferences for mates that possess genes dissimilar to ones own at the major histocompatibility complex (MHC), a polymorphic group of loci associated with the immune system, have been found in mice, birds, fish, and humans. These preferences may help individuals choose genetically compatible mates and may adaptively function to prevent inbreeding or to increase heterozy-gosity and thereby immunocompetence of offspring. MHC-dissimilar mate preferences may influence the psychology of sexual attraction. We investigated whether MHC similarity among romantically involved couples (N = 48) predicted aspects of their sexual relationship. All women in our sample normally ovulated, and alleles at three MHC loci were typed for each person. As the proportion of MHC alleles couples shared increased, womens sexual responsivity to their partners decreased, their number of extrapair sexual partners increased, and their attraction to men other than their primary partners increased, particularly during the fertile phase of their cycles.

Women's sexual interests across the ovulatory cycle depend on primary partner developmental instability

Normally ovulating women have been found to report greater sexual attraction to men other than their own partners when near ovulation relative to the luteal phase. One interpretation is that women possess adaptations to be attracted to men possessing (ancestral) markers of genetic fitness when near ovulation, which implies that womens interests should depend on qualities of her partner. In a sample of 54 couples, we found that women whose partners had high developmental instability (high fluctuating asymmetry) had greater attraction to men other than their partners, and less attraction to their own partners, when fertile.

Women’s Luteal-Phase Sexual Proceptivity and the Functions of Extended Sexuality

Women’s sexuality, unlike that of most mammals, is not solely defined by sexual receptivity during the short window of fertility. Women demonstrate extended sexuality (in which they initiate and accept sexual advances outside of the fertile phase) more than any other mammalian female. In this light, surprisingly little research has addressed the functions of women’s luteal-phase sexuality. On the basis of theory and comparative evidence, we propose that women’s initiation of sex during nonfertile phases evolved in part to garner investment from male partners. If so, women should be particularly prone to initiate luteal-phase sex when the potential marginal gains are greatest. Results from a study of 50 heterosexual couples showed that women increasingly initiate sex in the luteal phase (but not the fertile phase) when they perceive their partners’ investment to lag behind their own. These findings provide evidence for the distinct nature of women’s extended sexuality and may contribute to a more comprehensive understanding of women’s sexuality.

Tobacco-Free Policy Outcomes for an Inpatient Substance Abuse Treatment Center:

We assessed changes in patient census, smoking prevalence, and intention to remain abstinent associated with the voluntary enactment of a campus-wide tobacco-free policy in a for-profit residential addictions treatment center. Employing nationally recognized tobacco-free policy strategies, steps toward implementation were tailored to addictions treatment settings. Census data and survey of client tobacco use data were collected for 1 year before the policy began and for 1 year following the policy. Average daily census increased for both the inpatient and extended residential treatment programs after enactment of the tobacco-free policy. Number of tobacco users admitted to treatment increased significantly, while the number of tobacco users who left treatment early did not significantly change. In addition to reducing smoking, the policy was associated with a significant increase of patients reporting the intention to remain abstinent after discharge. Contrary to common concern, a tobacco-free policy implemented in an inpatient residential addictions treatment setting did not negatively affect census rates. This study suggests potential clinical and organizational benefits for campus-wide tobacco-free policies.

Effects of a Statewide Tobacco Cessation Program Among Individuals Involved With Arkansas Community Correction

In response to a critical need for tobacco cessation services among justice-involved populations, Arkansas Community Correction (ACC) partnered with the University of Colorado’s Behavioral Health & Wellness Program in 2013 to implement the DIMENSIONS: Tobacco Free Program within all probation, parole, and drug court units. In the first 2 years of this statewide, evidence-based program, more than 1,100 individuals from 33 ACC area office locations attended tobacco-free group sessions and provided data on tobacco use and readiness to quit. Results demonstrated a significant reduction in tobacco use among participants as well as increased knowledge, confidence, and intent to quit. This study provides some of the first evidence that members of this vulnerable population will attend tobacco-free group sessions with regularity and make progress toward tobacco cessation.