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Results for “Sexual Behavior”

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PubMed1992

Sexual behavior patterns of gay university men: implications for preventing HIV infection.

Gay male university students less than 25 years old were studied to determine whether they had changed their sexual activity patterns to reduce the risk of HIV infection. Most had not established sexual behavior patterns typical of the older gay men who had been studied in earlier research. Although most of the participants surveyed were concerned about HIV infection, some did engage in risky sexual behavior. The risk-reduction strategies most often used were having fewer sexual partners and being more selective in choosing partners. Future HIV-prevention interventions must be designed to address the needs of this generation of gay men.

Adult↗

PubMed1992

Relationship of AIDS-related attitudes to sexual behavior changes in adolescents.

The impact of the acquired immunodeficiency syndrome (AIDS) epidemic on a group of adolescents was investigated by surveying 197 sexually active, predominantly African-American, urban high school students. Reported sexual behavior changes were evaluated in relation to AIDS-related knowledge and attitudes. Over 50% of the students decreased their frequency of sexual activity, increased their condom use, and/or decreased their number of partners. These students had significantly higher scores on a measure of worry about vulnerability to human immunodeficiency virus (HIV) infection than those whose behavior had not changed. AIDS knowledge, AIDS beliefs, and AIDS-related anxiety interacted with gender to affect sexual behavior change. Male students reporting decreased frequency of sexual activity, for example, had more accurate beliefs about AIDS than males reporting no decrease. Among female students, however, those reporting decreased frequency had less accurate beliefs than those reporting no decrease. These results highlight the importance of considering gender and specific sexual behaviors when designing AIDS education interventions.

Acquired Immunodeficiency Syndrome↗

PubMedDate not supplied

The relationship between pituitary-gonadal function and sexual behavior in healthy aging men.

Few studies have assessed the role of pituitary and gonadal hormones on age-related changes in sexual behavior in healthy men. We conducted a retrospective and prospective evaluation of sexual function and behavior in 77 healthy married men aged 45 to 74 years. The subjects were studied in the sleep laboratory for four nights with the last night devoted to sequential blood sampling every 20 minutes. Significant age-related decreases in sexual desire, sexual arousal and activity, and increases in erectile problems were noted. Aging was negatively correlated with bioavailable testosterone (bT), was positively correlated with luteinizing hormone (LH), and was not related to total testosterone, estradiol, and prolactin. Bioavailable testosterone, and the ratio of bT over LH showed a close association with several sexual behavior dimensions while total testosterone, estradiol, and prolactin demonstrated few or no behavioral relationships. The age-related effect of bT was, however, a more important determinant of the reported behavioral differences than were the effect of bT independent of age. There was no evidence that changes in circulating hormones contribute to erectile disorders in healthy aging men.

Age Factors↗

PubMed1989

Correlation between the sexually dimorphic aromatase of the preoptic area and sexual behavior in quail: effects of neonatal manipulations of the hormonal milieu.

The aromatase of the preoptic area is significantly more active in males than in females. This sex dimorphism in enzyme activity is still found in birds that have been gonadectomized and treated with a same dose of testosterone. This suggests that the sex difference is not the result of a differential activation by the adult hormonal environment but rather is organized neonatally by steroid hormones. As the central aromatization of testosterone is a limiting step in the activation of copulatory behavior by testosterone, the lower aromatase activity in the preoptic area of females might be responsible, at least in part, for their lower sensitivity to the activating effects of testosterone on behavior. Three experiments were carried out to determine whether early manipulations of the hormonal environment, which are known to differentiate sexual behavior, also affect in a permanent way the aromatase activity in the preoptic area. Injection of estradiol benzoate into male embryos on day 9 of incubation decreased the preoptic aromatase activity in parallel to its demasculinizing effect on behavior. Unexpectedly the same treatment tended to increase enzyme activity in females so that the physiological relevance of the observed enzymatic change remains questionable. In two independent experiments, we confirmed that neonatal ovariectomy of female quail interferes with their behavioral differentiation. Females gonadectomized at 4 days post-hatch showed significantly more male-type sexual behavior as adult in response to testosterone than females gonadectomized at the age of 5 weeks. These experiments also confirmed that the preoptic aromatase activity is higher in males than in females but no evidence for an effect of the age of gonadectomy on the enzyme activity could be obtained. The sex difference and experimental modifications observed in the aromatase activity of the preoptic area were not seen in the posterior hypothalamus demonstrating that these effects are specific. The mechanisms controlling the sex difference in aromatase activity are discussed. The difference might be organized by the action of embryonic steroids as suggested by the changes observed in males injected with estradiol benzoate in egg. Alternatively, activational mechanisms cannot be ruled out at present. In one experiment, the activity of the preoptic aromatase was positively correlated with the sexual activity of the birds.(ABSTRACT TRUNCATED AT 400 WORDS)

Animals↗

PubMed1976

The effects of prenatal psychological stress on the sexual behavior and reactivity of male rats.

Male offspring of prenatally stressed rats showed low levels of copulatory behavior during a series of brief tests with estrous females but successfully impregnated female cagemates during long term tests of breeding effectiveness. Sexual performance on the short term tests was inversely related to open field activity with the offspring of prenatally handled mothers exhibiting more sexual behavior and less open field activity. The results support the notion that prenatal stress influences both the sexual behavior and emotional reactivity of male offspring. Deficits observed during short term tests of breeding effectiveness appear to be reversible under optimal conditions.

Animals↗

PubMed1980

Thalamocortical mechanisms in odor-guided behavior. II. Effects of lesions of the mediodorsal thalamic nucleus and frontal cortex on odor preferences and sexual behavior in the hamster.

The role of the thalamocortical "olfactory" pathway in odor preferences and sexual behavior was examined in the hamster, a species which depends crucially upon olfaction for mating. Before and after ablation of primary or secondary olfactory structures, male hamsters were tested for threshold, interest, and preference for the odor of an estrus female hamster and other odors. Sexual competency was also observed in daily mating sessions. Disruption of the primary olfactory pathway resulted in an absence of interest in odors and mating. Lesions of the mediodorsal thalamic nucleus or frontal neocortex of the rhinal sulcus did not result in anosmia, but did eliminate or alter odor preferences and resulted in inappropriate, inefficient, precopulatory and copulatory behavior. It appears that substructures in the thalamofrontal pathway playa role in discriminative or cognitive aspects of processing adaptively significant stimuli.

Animals↗

PubMed1998

Athletic participation and sexual behavior in adolescents: the different worlds of boys and girls.

Using multivariate analysis of covariance to test hypotheses about the effects of sports and sexual behavior on a sample of 611 Western New York adolescents, this study concludes that athletic participation and gender interact to influence adolescent sexual outcomes. Female athletes report significantly lower rates of sexual activity than female nonathletes; male athletes report slightly (though not significantly) higher rates than male nonathletes. The gender-specific effect of sports on sexual behavior remains, net of the impacts of race, age, socioeconomic status, quality of family relations, and participation in other extracurricular activities. This paper introduces cultural resource theory to explain how athletic participation influences both traditional cultural scripts and exchange resources, which, in turn, condition the sexual bargaining process and its outcomes for adolescents.

Adolescent↗

PubMed1990

Sexual behavior of Filipino female prostitutes after diagnosis of HIV infection.

A study of female prostitutes in Manila who tested positive for human immunodeficiency virus (HIV) antibody ascertained demographic and sexual behavior information following diagnosis. Counselling alone did not appear to have a major impact on the sexual behavior of the HIV positive women since most continued to work as prostitutes. Switching from high risk to low risk jobs in bars is not effective in preventing HIV positive women from engaging in prostitution. Revoking work permits is only effective if enforced with adequate follow up. Alternative job training programs may offer a viable approach.

Contraceptive Devices, Male↗

PubMed2002

Disinhibition of female sexual behavior by a CRH receptor antagonist in Syrian hamsters.

Several conditions that inhibit female sexual behavior are thought to be associated with altered corticotropin-releasing hormone (CRH) activity in the brain. The present experiments examined the hypothesis that endogenous CRH receptor signaling mediates the inhibition of estrous behavior by undernutrition and in other instances of sexual dysfunction. Intracerebroventricular (ICV) infusion of CRH or urocortin inhibited estrous behavior in ovariectomized steroid-primed hamsters. Conversely, ICV infusion of the CRH receptor antagonist astressin prevented the suppression of estrous behavior by food deprivation or by ICV administration of neuropeptide Y. Astressin treatment also induced sexual receptivity in nonresponders, animals that do not normally come into heat when treated with hormones, and this effect persisted in subsequent weekly tests in the absence of any further astressin treatment. Activation of the hypothalamo-pituitary-adrenocortical axis was neither necessary nor sufficient to inhibit estrous behavior, indicating that this phenomenon is due to other central actions of CRH receptor agonists. This is the first direct evidence that CRH receptor signaling may be a final common pathway by which undernutrition and other conditions inhibit female sexual behavior.

Animal Nutritional Physiological Phenomena↗

PubMed1995

[Sexual behavior in adolescents and young subjects].

The purpose of this paper was to obtain information about sexual behavior of university students. To achieve this goal we implemented a survey which was answered anonymously by 438 students, 123 women and 315 men. They were divided into three age groups. Between women, sexual activity grew with age, but between men, on the contrary, the highest percentage was verified in the youngest age group. The age at which sexual activity was started decreased in one year each four years of age and is two years ahead in boys. Reasons stated for this decision by women were based on values and love, while pleasure and opportunity were appointed by men. Both men and women of all ages showed a high number of sexual partners. Sexual transmitted diseases were acknowledged by a high number of students. This results clearly show the necessity of an educational programme including sexual advisory and sexual transmitted diseases prevention in all health care actions designed for university students.

Adolescent↗

PubMed1992

Effects of prenatal morphine on adult sexual behavior and brain catecholamines in rats.

Female rats exposed to morphine in utero (5-10 mg/kg twice a day on days 11-18 of gestation) were significantly inhibited in their sexual behavior when compared to saline-exposed controls. In contrast, males exposed prenatally to morphine had shorter post-ejaculatory intromission latencies and, after the first test, exhibited increased mounting and intromitting activity relative to controls. Examination of the brain catecholamine content revealed that morphine in utero may permanently alter adult hypothalamic norepinephrine levels in male and female rats. The morphine-induced alterations in hypothalamic norepinephrine levels were sexually dimorphic. In the hypothalamus of male rats, norepinephrine content was increased 95%, whereas in the hypothalamus of female rats it was decreased 57% relative to controls. These results suggest that prenatal morphine exposure, which differentially affects adult male and female sexual behavior, also alters hypothalamic norepinephrine content in a sexually dimorphic fashion.

Animals↗

PubMed2003

Family communication and religiosity related to substance use and sexual behavior in early adolescence: a test for pathways through self-control and prototype perceptions.

This research tested predictions about pathways to substance use and sexual behavior with a community sample of 297 African American adolescents (M age: 13.0 years). Structural modeling indicated that parent-adolescent communication had a path to unfavorable prototypes of substance users; quality of parent-adolescent relationship had paths to good self-control, higher resistance efficacy, and unfavorable prototypes of sexually active teens; and religiosity had inverse direct effects to both substance use and sexual behavior. Self-control constructs had paths to prototypes of abstainers, whereas risk taking had paths to prototypes of drug and sex engagers and direct effects to outcomes. Prototypes had paths to outcomes primarily through resistance efficacy and peer affiliations. Effects were also found for gender, parental education, and temperament characteristics. Implications for self-control theory and prevention research are discussed.

Adolescent↗

PubMed2002

Adherence to antiretroviral therapy and its association with sexual behavior in a national sample of women with human immunodeficiency virus.

To delineate the relationship between adherence to human immunodeficiency virus (HIV) therapy and sexual behavior among HIV type 1-infected women in the United States, data were collected from October 1998 through March 1999 from 766 HIV-positive women on adherence to therapy, risk behavior, and disease markers. Adherence rates of >/=95% were reported by 66% of the patients. In multivariate analyses, patients with lower rates of adherence tended to be younger (odds ratio [OR], 1.69), to be active drug users (OR, 2.27), to have detectable virus load levels (OR, 2.00), and to have a lower quality of life (OR, 1.20). Among sexually active women, lower adherence rates were associated with an increased risk for inconsistent condom use (adjusted OR, 2.17). Although counseling regarding sexual behavior and adherence to treatment regimens are often addressed separately, our data highlight the importance of discussing these factors in relation to one another, particularly with regard to patients experiencing virologic failure.

Adult↗

PubMed2006

A population-based study on alcohol and high-risk sexual behaviors in Botswana.

BACKGROUND: In Botswana, an estimated 24% of adults ages 15-49 years are infected with HIV. While alcohol use is strongly associated with HIV infection in Africa, few population-based studies have characterized the association of alcohol use with specific high-risk sexual behaviors. METHODS AND FINDINGS: We conducted a cross-sectional, population-based study of 1,268 adults from five districts in Botswana using a stratified two-stage probability sample design. Multivariate logistic regression was used to assess correlates of heavy alcohol consumption (>14 drinks/week for women, and >21 drinks/week for men) as a dependent variable. We also assessed gender-specific associations between alcohol use as a primary independent variable (categorized as none, moderate, problem and heavy drinking) and several risky sex outcomes including: (a) having unprotected sex with a nonmonogamous partner; (b) having multiple sexual partners; and (c) paying for or selling sex in exchange for money or other resources. Criteria for heavy drinking were met by 31% of men and 17% of women. Adjusted correlates of heavy alcohol use included male gender, intergenerational relationships (age gap > or =10 y), higher education, and living with a sexual partner. Among men, heavy alcohol use was associated with higher odds of all risky sex outcomes examined, including unprotected sex (AOR = 3.48; 95% confidence interval [CI], 1.65 to 7.32), multiple partners (AOR = 3.08; 95% CI, 1.95 to 4.87), and paying for sex (AOR = 3.65; 95% CI, 2.58 to 12.37). Similarly, among women, heavy alcohol consumption was associated with higher odds of unprotected sex (AOR = 3.28; 95% CI, 1.71 to 6.28), multiple partners (AOR = 3.05; 95% CI, 1.83 to 5.07), and selling sex (AOR = 8.50; 95% CI, 3.41 to 21.18). A dose-response relationship was seen between alcohol use and risky sexual behaviors, with moderate drinkers at lower risk than both problem and heavy drinkers. CONCLUSIONS: Alcohol use is associated with multiple risks for HIV transmission among both men and women. The findings of this study underscore the need to integrate alcohol abuse and HIV prevention efforts in Botswana and elsewhere.

Adult↗

PubMed1997

How peer education changed peer sexuality educators' self-esteem, personal development, and sexual behavior.

Despite peer education's having become an extremely common strategy on many college campuses, very few outcome evaluations of these programs, particularly evaluations that focus on the peers themselves, have been performed. In this article, we report on a study that measured changes in self-esteem, personal development, and sexual behavior over 1 academic year in 65 sexuality peer educators from 10 universities in the United States. Objective measures of those traits demonstrated a shift in a positive direction; after analysis, however, the changes were not statistically significant. Qualitative data described increased levels of self-esteem, confidence, and safer sexual behavior as a major outcomes of the program, reinforcing the notion of the positive effects of peer education. Implications for program enhancement and considerations of the importance of evaluation are discussed, and recommendations for future research are offered.

Adolescent↗

PubMed2001

Development and psychometric testing of the Wilmoth Sexual Behaviors Questionnaire-Female.

The purpose of this study was to develop and test the Wilmoth Sexual Behaviors Questionnaire-Female. As initially developed, the WSBQ-F consisted of 54 items arranged in 8 subscales. Items were rated on a Likert-type scale, with high scores reflecting more consistent use of a sexual behaviour. A convenience sample of 310 women with breast cancer (n = 165) and healthy women (n = 145) participated in the study. An Index of Content Validity of 1.00 was obtained. Construct validity was estimated using exploratory factor analysis and the known groups method. Internal consistency reliability was .94 for the total scale, with coefficients ranging between 0.52 and 0.94 for the subscales. The test-retest correlation coefficient was .81 for the total scale; coefficients were between .58 and .88 for the subscales. Initial testing of the measure suggests that the WSBQ-F is a reliable and valid measure of female sexual behaviours.

Adult↗

PubMed1984

An analysis of self-reported sexual behavior in a sample of normal males.

Ninety-eight presumably normal London men, age 20-35 and sexually active in a stable relationship, responded to an invitation at their work place to participate in a detailed sexuality interview. The interview was developed by a group of WHO collaborators to measure possible effects on sexual functioning resulting from various medical regimens (for example, a male contraceptive pill). It assessed frequency of coitus and masturbation during the previous 4 weeks, a variety of subjective ratings of sexual interest, satisfaction, and quality of relationships, as well as reports of the nature and incidence of various sexual problems. The study sample's responses displayed internal consistency and in general supported the inference that the sample was not atypical. The data appear to support Westoff's (1974) notion that the frequency of coitus has increased since the early normative reports by Kinsey et al. (1948). Most importantly, the results of principal components analyses point to the fact that overall sexual drive or "libido" (e.g., frequency of sexual behavior) is independent of several other possibly significant dimensions, including latency to orgasm, quality of sexual experience, autoeroticism, and the incidence of erectile difficulties. It is concluded that the sexuality interview provides potentially useful baseline data against which to evaluate effects of sexual therapy or drug regimens.

Adult↗

PubMed1996

Examination of the relationship between African American adolescents' condom use at sexual onset and later sexual behavior: implications for condom distribution programs.

School-based condom distribution programs have generated considerable controversy across the country. In the present study 249 sexually active African American adolescents who did (n = 119) and did not (n = 130) use a condom during their initial sexual experience were compared to assess whether condom use at the onset of sexual activity was associated with later differences in sexual behavior. The results indicated that youths who used a condom from the onset of sexual activity were more likely to have used a condom in the most recent intercourse occasion, less likely to be diagnosed with a sexually transmitted disease (STD) or to combine substance use with sexual activity, endorsed more positive attitudes toward condoms, and were older when they initiated sexual activity. The findings have implications for condom availability programs and indicate that initial condom use was not associated with earlier onset of sexual activity and was associated with higher rates of precautionary behavior among sexually active minority adolescents.

Adolescent↗