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PubMedDate not supplied

The multiple dimensions of sexual behavior as risk factor for sexually transmitted disease: the sexually experienced are not necessarily sexually active.

Sexual behavior is a crucial risk factor for sexually transmitted diseases (STDs), but no national data exist to define a true population at risk. Instead, limited information describes sexual behavior in specific population groups (adolescents, women in their twenties) only in terms of a single dimension: sexual experience. To address the multiple dimensions of sexual behavior, we analyzed data collected from a nationally representative sample of reproductive age women in the 1982 National Survey of Family Growth (NSFG). We found 86% of women aged 15-44 to be sexually experienced. Teenagers are the least experienced (45% and 56% of whites and others, respectively) and the least sexually active of all reproductive women. While sexual experience increases with age, sexual activity shows a curvilinear age pattern: it increases up to age 35 and decreases slightly from age 35 to 44. Teenagers report the least consistent sexual activity (less than 25%) and the highest level of abstention (38% and 31% for whites and others, respectively) following sexual experience. These findings indicate sexual experience as a measure of sexual behavior should be further refined to provide a more accurate estimate of the population at risk for STD.

Adolescent↗
PubMed2004

Sexual behavior and responsiveness to sexual stimuli following laboratory-induced sexual arousal.

Sexual excitement can be seen as an action disposition. In this study sexual arousal was expected to generate sexual action and to increase interest and responsiveness to sexual stimuli. In two experiments, male and female participants were exposed to a neutral or a sexual film. We measured genital and subjective responses to the film, and sexual behavior following the laboratory visit. In Experiment 2, film exposure was followed by a task in which participants rated the sexual arousability of neutral and sexual pictures. Rating time of the sexual pictures served as an index for sexual interest. Responsiveness to the sexual pictures was measured by modulation of spinal tendinous (T) reflexes. Sexual activity, but not sexual desire, was higher for participants in the sexual film condition than for participants in the neutral condition. Sexual interest and responsiveness to still pictures were not higher for participants in the sexual film condition than for those in the neutral film condition. In addition, men who saw the neutral film showed a greater responsiveness to still pictures than men who saw the sexual film. The results support the view of sexual arousal as an emotional state generating action tendencies and actual sexual behavior.

Adult↗
PubMed1998

Regulation of male sexual behavior by progesterone receptor, sexual experience, and androgen.

Recent studies have demonstrated that physiological doses of progesterone may facilitate the androgen-dependent display of male sexual behavior in laboratory rats and three species of lizard. We used mice with a targeted disruption of the progesterone receptor to investigate whether such interactions exist in male mice and whether they may be modified by sexual experience. We found that naive intact male progesterone receptor knockout (PRKO) mice exhibit reduced mount frequencies compared to wild-type (WT) mice. Also unlike WT mice, sexually experienced PRKO males show profound losses in many measures of sexual behavior following castration. In a second experiment, we tested whether male mice heterozygous for a null mutation at the progesterone receptor locus were responsive to testosterone and progesterone treatment. We found that heterozygous males showed a reduced response to testosterone. The data are consistent with experiments indicating that the progesterone receptor is able to facilitate male-typical sex behaviors in other species and suggest novel mechanisms underlying the interaction of androgens and experience.

Androgens↗
PubMed1999

Getting a high response rate of sexual behavior survey among the general population in Japan: three different methods of survey on sexual behavior.

The purpose of this study was to specify the most accurate, reliable and valid technique for a general sexual behavioral survey in Japan. This pilot study was conducted to assure a high response rate and to keep respondents' privacy confidential by using an anonymous questionnaire survey technique. The sample (360 potential respondents) was selected randomly from basic resident registers in two geographically different areas. From the registries, 90 residents, aged 20 to 49 years old, were randomly selected to represent each sex from each area. The subjects were randomly assigned to three groups each having a different procedure of requesting the completion of the survey and providing the questionnaires: (1) Postal Group, (2) Telephone Group, and (3) Face-to-face Group. The survey was carried out from October 1995 to February 1996. Effective response rates for the above mentioned three groups were 69.2%, 69.2% and 55.8%, respectively. It is difficult to determine the best method when only considering the effective response rates. However, judging from our effort and expense, the mail survey is the best possible procedure and would be a reasonable method for a national sexual behavior survey.

Confidentiality↗
PubMed2006

Discordance between sexual behavior and self-reported sexual identity: a population-based survey of New York City men.

BACKGROUND: Persons reporting sexual identity that is discordant with their sexual behavior may engage in riskier sexual behaviors than those with concordant identity and behavior. The former group could play an important role in the spread of sexually transmitted diseases. OBJECTIVE: To describe discordance between self-described sexual identity and behavior among men who have sex with men and associations between identity-behavior and risk behaviors. DESIGN: Cross-sectional, random digit-dialed telephone survey of health status and risk behaviors. SETTING: New York City. PARTICIPANTS: Population-based sample of 4193 men. MEASUREMENTS: Concurrent measures of sexual identity and sexual behaviors, including number and sex of sex partners, condom use during last sexual encounter, and recent testing for HIV infection. Sex partner information was ascertained in a separate section from sexual identity; all participants were asked about the number of male sex partners and then were asked about the number of female sex partners in the past year. RESULTS: Of New York City men reporting a sexual identity, 12% reported sex with other men. Men who had sex with men exclusively but self-identified as heterosexual were more likely than their gay-identified counterparts to belong to minority racial or ethnic groups, be foreign-born, have lower education and income levels, and be married. These men were more likely than gay-identified men who have sex with men to report having only 1 sexual partner in the previous year. However, they were less likely to have been tested for HIV infection during that time (adjusted prevalence ratio, 0.6 [95% CI, 0.4 to 0.9]) and less likely to have used condoms during their last sexual encounter (adjusted prevalence ratio, 0.5 [CI, 0.3 to 1.0]). LIMITATIONS: The survey did not sample groups that cannot be reached by using residential telephone services. CONCLUSIONS: Many New York City men who have sex with men do not identify as gay. Medical providers cannot rely on patients' self-reported identities to appropriately assess risk for HIV infection and sexually transmitted diseases; they must inquire about behavior. Public health prevention messages should target risky sexual activities rather than a person's sexual identity.

Adolescent↗
PubMed2003

Sexual behaviors and opinions on sexuality of adolescents in a slum community in Bangkok.

This study was a survey research aiming to investigate sexual behaviors and opinions on sexuality of adolescents in a slum community. The study group comprised of 377 adolescents aged 12-22 years in a slum community in Bangkok randomly selected, and data were collected using self-administered questionnaires. Results indicated that 18.8% of the adolescents were sexually experienced with the average age of 15 years old at first intercourse. 63.1% of the adolescents had unprotected sexual intercourse with lovers or friends. Almost one-third of the population believed that premarital sexual activity was acceptable. One-sixth of the adolescents agreed that having sexual intercourse with a lover is safe, assuming that they had trustworthy partners and that having sexual intercourse was the best way to prevent their lover from having sexual activities with other partners. In addition, gender and age range were found to be the factors that significantly related to the adolescents' opinions that premarital sexual activity was acceptable and having sexual intercourse with a lover was safe (p < 0.05), whereas the relationship between the opinions and education level was statistically insignificant. It is recommended that familial, academic, community and public health support are necessary in educating the adolescents on reproductive health and family planning in order to reduce high risk behaviors associated with acquiring HIV and other STDs.

Adolescent↗
PubMed2000

Stimulation of the medical preoptic area facilitates sexual behavior but does not reverse sexual satiation.

The aim of the present study was to establish whether electrical and/or drug stimulation of the medial preoptic area/anterior hypothalamus (mPOA/AH) surmounts the sexual behavior inhibition that results from copulation to exhaustion. Thus, intermittent electrical stimulation of the mPOA/AH (alone or combined with the systemic injection of yohimbine or apomorphine, at doses that were subthreshold for reversing sexual exhaustion) or intrapreoptic treatments to block GABAergic transmission were applied to sexually satiated rats. The results suggest that the mPOA/AH is not responsible for male sexual behavior inhibition or for the pharmacologically induced sexual behavior expression in satiated rats. Data are discussed in terms of the roles ascribed to the mPOA/AH, both in the control of sexual behavior expression and in the regulation of the postejaculatory interval.

Animals↗
PubMed1983

Reproductive success, postpartum maternal behavior, and masculine sexual behavior of neonatally androgenized female hamsters.

Sex differences in maternal behavior induced by pup stimulation (sensitization) have been reported for rats and hamsters and may be affected by the presence or absence of perinatal androgen treatment. Postpartum maternal behavior and litter survival in golden hamsters treated with testosterone propionate (TP) as neonates were studied. A high dose of TP (300 micrograms)1 eliminated feminine reproductive capacity when given on Day 2 or 4 postpartum and had no discernible effect on Day 12. Treatment on Days 6, 8, or 10 resulted in treatment day-dependent deficiencies in reproductive success which fell short of sterility in most females. These deficiencies included low birth weight, weight gain, and higher litter losses than controls. However, the maternal behavior of TP dams, as measured by retrieval and crouching, appeared to be normal. The disparity between delivery and successful rearing of normal-weight young may include uterine incompetence, lactation deficiency, and hypercannibalism. Behavioral masculinization was a more sensitive index of neonatal androgen action than any aspect of defeminization, but the two phenomena were dissociated in individuals.

Animals↗
PubMed1990

Catecholamines and the initiation of sexual behavior in male rats without sexual experience.

The purpose of the present experiments was to investigate the effects of modified catecholaminergic neurotransmission upon sexual behavior in inexperienced males. Such males are critically dependent on stimuli from the female in order to initiate sexual behavior, and catecholamines are known to modulate interactions with environmental stimuli. It was found that D-amphetamine, 0.5 and 1 mg/kg, and amfonelic acid, 0.25 and 0.5 mg/kg, reduced mount and intromission latencies. Pimozide, in doses between 0.25 and 1 mg/kg, and cis(Z)-flupentixol, 0.5 mg/kg, reduced the proportion of animals displaying sexual behavior. The noradrenergic neurotoxin DSP4 (50 mg/kg one week before behavioral observation) shortened intromission latency while the noradrenaline precursor threo-dihydroxyphenylserine (10 mg/kg + carbidopa 50 mg/kg) increased mount and intromission latencies. In a test for social and exploratory behaviors it was found that amfonelic acid, in a dose of 0.5 mg/kg, augmented sniffing and rearing without affecting nonsexual interaction with a receptive female. Flupentixol (0.5 mg/kg) had a slight inhibitory effect on exploratory behavior and no effect on nonsexual interaction with a female. It is suggested that enhanced dopaminergic activity facilitates the initiation of sexual behavior due to an increased general arousal and not because of a specific effect on that behavior. The role of noradrenaline is less clear at present.

Animals↗
PubMed2005

MDMA and sexual behavior: ecstasy users' perceptions about sexuality and sexual risk.

This study examines the relationship between MDMA (Ecstasy), sexual behavior, and sexual risk taking. The sample consisted of 98 current and former users of MDMA. Several strategies were utilized to recruit respondents and data were collected through in-depth interviews during 1997 and 1998. The majority of respondents had used MDMA during the 6-month period prior to the interview and a large percentage had consumed the drug on 100 occasions or more. Most respondents reported feelings of emotional closeness while consuming MDMA but without the desire for penetrative sex. Others, however, reported that MDMA increased sexual arousal and some respondents (in particular, gay and bisexual females) had used MDMA specifically for sexual enhancement. Sexual risk taking (e.g., having multiple partners, engaging in sex without a condom) was prevalent among respondents who did engage in sexual activity during MDMA episodes. Explanations for the findings are offered and implications for prevention/intervention are discussed.

Adolescent↗
PubMed1995

Sexual behavior problems and psychopathology symptoms in sexually abused girls.

OBJECTIVE: This study contrasted a group of sexually abused girls, aged 6 to 12 years, with two demographically comparable control groups, girls from a child psychiatry outpatient department, and girls from a general pediatric clinic to determine whether differences in sexual behavior and psychopathology symptoms could be demonstrated. METHOD: All girls and their mothers underwent an evaluation protocol composed of two parent-report inventories, the Child Behavior Checklist and the Child Sexual Behavior Inventory. RESULTS: Sexually abused girls and psychiatric controls manifested more psychopathology symptoms, including internalizing and externalizing behaviors, than the nonpsychiatric controls. Relative to both control groups, sexually abused girls manifested more sexual behavior problems: masturbating openly and excessively, exposing their genitals, indiscriminately hugging and kissing strange adults and children, and attempting to insert objects into their genitals. Abuse by fathers or stepfathers involving intercourse was associated with particularly marked sexual behavior disturbances. There was a subgroup of sexually abused girls who tended to force sexual activities on siblings and peers. All of these girls had experienced prolonged sexual abuse (more than 2 years) involving physical force which was perpetrated by a parent. CONCLUSIONS: Findings suggest that sexual abuse in preadolescent girls is associated with sexual behavior problems.

Analysis of Variance↗
PubMed1979

Dissociation of active from immobility components of sexual behavior in female rats by central 6-hydroxydopamine: implications for CA involvement in sexual behavior and sensorimotor responsiveness.

Ovariectomized female rats were given a hormone treatment (2 X 8 micrograms/kg estradiol benzoate) that normally supports only low levels of lordosis responding and no soliciting behavior in tests with sexually active males. When subjected to an intraventricular 6-hydroxydopamine (6-OHDA) procedure (with pargyline pretreatment) that produced 85% and 95% depletions of caudate dopamine and cortical norepinephrine respectively, these females exhibited a dramatic increase in the intensity and frequency of lordotic responding but no soliciting behavior over 3 weekly tests. The increase in lordosis was not due to a drug- or stress-induced release of adrenal progesterone, since dexamethasone suppressed the progesterone levels, as documented by radioimmunoassay, but not the higher receptivity of 6-OHDA treated females. In other ovariectomized females given a hormone regimen (2 X 50 micrograms/kg estradiol benzoate plus 500 micrograms progesterone) that supported maximal levels of lordosis and soliciting, the same 6-OHDA treatment prolonged the average duration of lordosis while actually decreasing the incidence and duration of soliciting. The hypothesis is put forward that the differential effects of interfering with catecholamine, and more likely dopamine function on the soliciting and lordosis components of female sexual behavior might best be understood as a dissociation between mutually antagonistic behavior patterns such that responsiveness involving active orientation and forward locomotion is suppressed, whereas responses requiring immobility are augmented.

Animals↗
PubMed1997

Weekly and seasonal variation in sexual behaviors among adolescent women with sexually transmitted diseases.

PURPOSE: The objective of this research is to describe aspects of the organization of adolescent sexual behavior in order to understand factors associated with risk for sexually transmitted diseases (STD). METHODS: Subjects were 82 females (ages 16-19 years; 77% African-American) participating in a larger STD study. Subjects completed diaries for each coital event, recording date of event, partner initial, condom use, and use of drugs or alcohol before intercourse. Partner change was defined as any event for which the sex partner initials differed from those listed for the most recent previous coital event. RESULTS: The 82 subjects recorded 1265 coital events; the average span of the records was 10 weeks. Intercourse was least likely on Sundays (154 of 1265; 12.2%) and most common on Friday and Saturday (221 of 1265 for each day; 17.5%). The proportion of coital events associated with drugs or alcohol increased from Sunday to Saturday, although the proportion of coital events in which a condom was used did not vary significantly. Intercourse was most common in spring and summer, and least frequent in winter. CONCLUSIONS: These data indicate substantial temporal organization of adolescent sexual behaviors that may be related to risk of sexually transmitted diseases. Some STD-preventive interventions may be most effective when targeted to higher risk times.

Adolescent↗
PubMed1992

Risk factors for adolescent sexual behavior, fertility, and sexually transmitted diseases.

Current understanding of the risk factors related to adolescent initiation of sexual activity, use of contraception, pregnancy, and STDs is examined. From recent research on adolescent fertility, findings that have particular relevance to school health or reflect new understandings of adolescent sexuality are summarized. In selected cases, prevention programs that build directly on an understanding of these risk factors are cited.

Adolescent↗
PubMed1991

Gender, knowledge about AIDS, reported behavioral change, and the sexual behavior of college students.

This article reports on an analysis of the relationships among knowledge about AIDS, self-reported changes in sexual behavior, and independent measures of those behaviors--condom use, coital frequency, and number of partners. The sample consisted of 195 sexually active, heterosexual college students attending a northeastern state university in spring 1988. With other relevant variables held constant, statistically significant associations in the predicted direction were found between knowledge and reported change and each of the dependent variables among the men, especially the men not involved in relationships. Among women, however, the only significant association was that between reporting the beginning of condom use and the frequency with which condoms were used in the past year. Possible reasons for these gender differences are discussed.

Acquired Immunodeficiency Syndrome↗