Measures Of Sexual Behavior Research Articles

Chronic Stress Effects on Sexual Behavior in Male and Female Rats: Mediation by 5-HT 2A Receptors

The effects of chronic psychosocial stress on sexual behavior and on the serotonergic type 2A (5-HT 2A) receptor-mediated behavior “wet dog shakes” (WDS) were investigated in male and female rats. In Experiment 1, both bilaterally adrenalectomized and sham-adrenalectomized female rats were assigned to either a psychosocial stress condition or a control condition for 62 days. On the 63rd day, estrogen-primed females were compared on measures of sexual behavior and WDS. Immediately after the behavioral tests, the same rats were primed with a subthreshold level of progesterone. Three hours after the administration of progesterone, rats were again scored for sexual behavior and WDS. Psychosocial stress was found to facilitate sexual behavior and increase WDS in sham-adrenalectomized female rats providing they were primed with both estrogen and progesterone. In Experiment 2, intact male rats were assigned to either the psychosocial stress condition or the control condition for 30 days. On the 31st day, males were compared on measures of sexual behavior and WDS. No significant differences were revealed on the spontaneous expression of sexual behavior and WDS. Subsequently, males were retested following the administration of the 5-HT 2A agonist, DOI. Psychosocial stress resulted in a significant decrease in male sexual behavior and a concurrent increase in WDS, following the administration of DOI. Taken together, these results suggest that chronic psychosocial stress facilitates female sexual behavior and inhibits male sexual behavior, and that the effects of stress on sexual behavior may be mediated by 5-HT 2A receptor activity.

Measuring AIDS-Related Behaviors in Older Populations: Methodological Issues.

Because of a dearth of research on reporting biases in the measurement of HIV-related sexual and drug use behaviors in older populations, it is frequently assumed that methodological findings of research conducted with younger populations will generalize to older respondents. In this study, estimates of the effect of the experimental manipulation of interview mode (interviewer administered vs. self-administered) were derived separately for three age strata: 12 to 49, 50 to 64, and 65+. Results of these analyses indicate that there were a number of noteworthy reversals in which interviewer-administered questioning in the older age strata produced higher esti-mates of the prevalence of substance use or alcohol-related problem behaviors. These results suggest that caution should be exercised in making generalizations from studies of reporting bias for HIV-related behaviors to older populations.

Effects of brain testosterone implants on appetitive and consummatory components of male sexual behavior in Japanese quail

Aromatization of testosterone (T) into an estrogen is necessary for the activation of consummatory and appetitive sexual behavior in male Japanese quail. T action within the medial preoptic nucleus (POM) is necessary and sufficient to activate consummatory behavior, and some evidence suggests that POM might be involved in the control of appetitive behavior, but other brain regions, such as the bed nucleus of the stria terminalis (BST), an area that contains a dense population of aromatase-immunoreactive neurons, are also likely to be involved. This study was performed to assess the effects of stereotaxic T implants targeting either the POM or the BST on the activation of both components of sexual behavior in castrated male quail. Appetitive sexual behavior was measured by an acquired social proximity response in which a male will approach a window providing visual access to a female after the window has been repeatedly paired with physical access to a female and the possibility to freely interact with her. Rhythmic cloacal sphincter movements that are produced by the male when given visual access to a female were used as another measure of appetitive sexual behavior that does not appear to depend on sexual learning. The experiments confirmed that copulation is necessary for males to develop the social proximity response that is used to measure the appetitive sexual behavior. T implants in the POM activated both components of sexual behavior, suggesting that these components cannot be completely dissociated. In contrast, T implants located within the BST did not affect either component, but because implants in the BST did not activate copulatory behavior, these results do not preclude a role for BST in the expression of a previously acquired appetitive sexual behavior.

Risk factors for repeated gonococcal infections: San Francisco, 1990-1992.

Gonococcal (GC) infections are very common and are sustained by a core group of persons who often have repeated GC infections. Identifying individual risk factors for repeated GC infection is essential so that infection control programs can develop better strategies for decreasing the incidence of GC infection. A case-control study among high-risk persons found that being African American, having previous chlamydia infection, and having less than a high-school education were associated with repeated GC infections. Remarkably, measures of sexual behavior and access to health care were not associated with repeated GC infections. These findings suggest that among high-risk persons, the community prevalence of GC infection is more important in predicting risk for repeated GC infections than individual behavior. Interventions should include continued use of resources in high-prevalence communities and better understanding of the roles social and economic discrimination play in the risk for GC infections.

Reporting sexual risk behavior for HIV: a practical risk index and a method for improving risk indices.

As a means of enhancing public health efforts to control sexual transmission of human immunodeficiency virus (HIV), methods were developed to report on risk behavior in a manner that is comparable and widely interpretable. An elementary sexual behavior risk index (the vaginal episode equivalent index) that is in accord with some of the essential knowledge about sexual transmission of HIV is described, and a multivariate ordinal risk (MOR) method that can be used to improve such risk indices is introduced. An example shows that these approaches are applicable to observational studies of seroconversion. The MOR represents a powerful new tool to develop valid comparable measures of sexual risk behavior and, thereby, to advance HIV prevention research.

High-risk sexual behavior among drug users. The utility of a typology of alcohol variables.

The purpose of this study was to develop a typology of drug users based on alcohol use variables and then determine the utility of this typology for predicting high-risk sexual behavior, controlling for the personality traits of sensation seeking and risk proneness. A sample of 283 out-of-treatment drug users in Anchorage, Alaska, were interviewed regarding their alcohol and drug use, sexual behavior, sensation seeking, and risk proneness. The sample was 66% male; 44% white, 26% black, and 24% Native American; had a median age of 36 years; and a median monthly income of $500 to $999. Cluster analyses of alcohol variables showed the presence of two clusters, one of which is characterized by relatively high alcohol consumption and early age of first alcohol use. This alcohol typology was significantly related to several sexual risk behaviors, including having sex with multiple partners without consistent condom use (chi 2(1) = 10.47, p < .01), having sex with an injection drug user (IDU) without consistent condom use (chi 2(1) = 4.87, p < .05), number of sex partners (t(281) = -2.16, p < .05), STD history (chi 2(1) = 7.86, p < .01), and having traded sex for drugs or money recently (chi 2(1) = 6.91, p < .01) or in one's lifetime (chi 2(1) = 9.20, p < .01). All but one of these associations remained significant after controlling for sensation seeking and risk proneness. Among this sample of out-of-treatment drug users, a typology based on patterns of alcohol use was found to be associated with several measures of high-risk sexual behavior. Drug users who were classified as high risk on the basis of their lifetime and current alcohol use patterns were found to be significantly more likely than low-risk drug users to have engaged in risky sexual behavior. Risk proneness does not appear to account for this pattern of associations.

Reliability and validity of self-report measures of HIV-related sexual behavior: progress since 1990 and recommendations for research and practice.

The trustworthiness of self-reported sexual behavior data has been questioned since Kinsey's pioneering surveys of sexuality in the United States (Kinsey et al., 1948, 1953). In the era of HIV and AIDS, researchers and practitioners have employed a diversity of assessment techniques but they have not escaped the fundamental problem of measurement error. We review the empirical literature produced since Catania et al.'s (1990) review regarding reliability and validity of self-administered and automated questionnaires, face-to-face interviews, telephone interviews, and self-monitoring approaches. We also provide specific recommendations for improving sexual behavior assessment. It is imperative that standardized self-report instruments be developed and used for sexual risk-behavior assessment.

Behavioral Evidence for Individual Recognition in Japanese Quail

Abstract Two studies were performed to explore the ability of male Japanese quail to discriminate between individual females, and between individual males within a context related to reproduction. Male quail were found to spend more time in front of and looking through a window providing visual access to a female with which they were repeatedly allowed to copulate, compared to a female with which they had never been allowed to copulate. In contrast, when males were allowed to freely interact with both females, no differences were observed in consummatory measures of sexual behavior. With respect to a male's ability to discriminate between individual males, during repeated pairings between the same males, dominant males displayed an elevation in cloacal contact movements (CCM) compared to their subordinate partners. The difference in CCM between members of each pair developed over several days suggesting that the males were learning to recognize and respond to one another according to a dominance relationship. During subsequent separate pairings with both familiar (i.e. the birds previously used during the repeated pairings) and novel individuals, both subordinates and dominants were found to crouch more often in the presence of novel birds. Subordinate males were also found to peck more often at a glass partition separating them from a novel dominant compared to a familiar dominant. Male quail thus appear capable of discriminating between individual females and individual males as indicated by behavioral measures relevant to reproduction.

Effects of Paraventricular Lesions on Sex Behavior and Seminal Emission in Male Rats

Ackerman, A. E., G. M. Lange and L. G. Clemens. Effects of paraventricular lesions on sex behavior and seminal emission in male rats. PHYSIOL BEHAV. 63(1) 49–53, 1998.—Oxytocinergic neurons of the paraventricular nucleus (PVN) of the hypothalamus have been implicated in modulating male sexual responses in rats. Previous investigators have shown that cerebrospinal fluid concentrations of oxytocin (OT) increased after ejaculation and that intraventricular administration of OT and electrolytic lesions of the PVN increased temporal measures of male sexual behavior. Recently, we have demonstrated that OT-immunoreactive neurons in the parvocellular subnuclei of the PVN project to lower levels of spinal cord. In the present study, N-methyl- d-aspartic acid lesions, which have been shown to destroy parvocellular PVN neurons while leaving magnocellular neurons intact, were used to evaluate the role of parvocellular neurons on male copulatory behavior and seminal emissions. OT-immunoreactive fibers were reduced in the lower lumbar spinal cord (L 5-L 6) following N-methyl- d-aspartic acid lesions in the PVN. This reduction was associated with a significant decrease in seminal emission at the time of ejaculation, but mount, intromission and ejaculatory latencies were unaffected.

Effects of Dopamine Agonists on Appetitive and Consummatory Male Sexual Behavior in Japanese Quail

The effects of pharmacological manipulations of dopaminergic transmission on appetitive and consummatory aspects of male sexual behavior were investigated in castrated male Japanese quail treated with exogenous testosterone. Appetitive male sexual behavior was assessed by measuring a learned social proximity response and consummatory behavior was assessed by measuring copulatory behavior per se. The nonselective dopamine receptor agonist, apomorphine, inhibited in a dose-dependent manner both components of male sexual behavior. Two indirect dopamine agonists were also tested. Nomifensine, a dopamine re-uptake inhibitor, decreased appetitive sexual behavior but increased the frequency of mount attempts, a measure of consummatory sexual behavior. Amfonelic acid, a compound that enhances dopaminergic tone by a complex mechanism, increased aspects of both appetitive and consummatory behaviors. These data suggest that, in quail, as in rodents, increases in dopaminergic tone facilitate both appetitive and consummatory aspects of male sexual behavior. Apomorphine may be inhibitory in quail because it acts primarily on D2-like receptors, unlike in rats, where it stimulates sexual behavior and acts primarily on D1-like receptors at low doses but interacts with D2-like receptors at higher doses. This is supported by the observation that stereotyped pecking, a behavior stimulated selectively in quail by D2 agonists, was increased by apomorphine but not by the two indirect agonists. The observed partial dissociation between the effects of these dopaminergic agonists on appetitive and consummatory sexual behaviors suggests that these two components of male sexual behavior may be controlled by the action of dopamine through different neuronal systems.

Effects of Progesterone on the Sexual Behavior of Castrated, Testosterone-Treated Male Cynomolgus Monkeys (Macaca Fascicularis)

Zumpe, D., A.N. Clancy and R.P. Michael. Effects of progesterone on the sexual behavior of castrated, testosterone-treated male cynomolgus monkeys (Macaca fascicularis). Physiol Behav 62(1) 61–67, 1997.—In male cynomolgus monkeys the synthetic progestin, medroxyprogesterone acetate (MPA), decreases testosterone (T) levels and sexual behavior, binds to progestin receptors in brain, and reduces by about 70% the uptake of [3H]androgens by both brain and genital tract tissues. To examine the behavioral effects of progesterone (P) itself, eight castrated, T-treated males were each tested twice weekly with an estrogenized female before, during, and after they were treated with two SC Silastic P implants. Data from six 4-week treatment periods were analyzed to facilitate comparisons with our previous data using MPA: i) baseline, ii) weeks 4–7 of P treatment, iii) weeks 8–11 of P treatment, iv) weeks 1–4 after P implants were removed, v) weeks 5–8 after P withdrawal, and finally vi) weeks 9–12 after P withdrawal (384 1 h behavior tests). Weekly blood samples (N = 192) were analyzed by radioimmunoassay to determine plasma levels of both T and P. P treatment, which resulted in high plasma P levels (about 44 ng/ml), produced decrements in measures of male sexual behavior and motivation that were both qualitatively and quantitatively similar to those produced by MPA treatment but, unlike MPA, P did not decrease plasma T levels or change them in any way (about 850 ng/100 ml throughout). The findings suggest that P implants may be preferable to weekly MPA injections in the treatment of male sex offenders because they require less patient compliance and may not have MPA's troubling side effects.

Psychological and social factors associated with histories of risk for human immunodeficiency virus infection among African-American inner-city women.

Minority women constitute the fastest-growing segment of the American epidemic of human immunodeficiency virus/acquired immunodeficiency syndrome (HIV/AIDS). The present study examined the psychological and social factors related to HIV risk among 153 African-American inner-city women who completed measures of HIV risk history, sexual and substance use behaviors, perceived risk for HIV infection, self-efficacy to reduce risk (belief that one can effectively perform specific behaviors), and perceived social norms supporting risk reduction. Fifty-five percent of the women (n = 84) reported at least one factor that had placed them at known risk for HIV infection. Results of a stepwise regression analysis showed that HIV risk history was associated with self-perceived risk for HIV infection and self-efficacy to perform risk-reducing actions. Social norms for safer sex did not contribute significantly to the explained variance. Women at risk were more likely to have been forced or coerced into unwanted sex and were less likely to have been familiar with their most recent sex partner. These result suggest that HIV risk-reduction interventions targeting inner-city women should focus on skills training approaches to build self-efficacy and empower women to adopt risk-reducing practices.

Continued high-risk sex among HIV seropositive gay and bisexual men seeking HIV prevention services.

The authors examined HIV risk-related sexual behaviors in an ethnically diverse sample of HIV seropositive gay and bisexual men (N = 86). Measures of sexual behavior, substance use, condom attitudes, behavior change intentions, and engagement in risk-reducing practices were completed. Thirty-nine percent of the men reported engaging in unprotected anal intercourse in the past 3 months. Unprotected anal intercourse was associated with using nitrite inhalants, sex partners who used substances before sex, and low intentions to change risk behavior. These results highlight the difficulties that people living with HIV infection face in maintaining a lifetime of safer sex and the necessity of integrating clinical and prevention interventions for these persons.

Priming Effects of HIV Risk Assessments on Related Perceptions and Behavior: An Experimental Field Study

HIV-AIDS prevention research requires assessment administration formats that do not enhance response bias or risk sensitization. In the present study, reactivity of self-reported sexual history measures used in HIV prevention research was examined in a sample of 158 African American women. Sexual history assessments were administered in one of three formats: self-administration, administration assisted by overhead projections of measures explaining items while participants completed their own assessment instruments, or face-to-face interviews, with follow-up assessments completed 2 weeks later. Consistent with previous research, test-retest coefficients indicated moderate stability of the sexual behavior measures. We also found that participants who self-administered measures were less likely to return for the 2-week follow-up. Tests for measurement reactivity showed that self-administered questionnaires and face-to-face interviews primed sensitization to personal risk and intentions to change risk behaviors to a greater extent than did the projector-assisted assessments. We conclude that sexual behaviors can be assessed with moderate test-retest stability in inner-city women and some administration procedures may enhance preparedness to change HIV risk behaviors.

Testing a theoretical model of adolescent sexual behavior among rural families in poverty

This was a study of 357 adolescents, aged 13 to 17 years, who resided in a family receiving AFDC in 10 rural counties in Arkansas. The study had a twofold purpose: 1) to examine what elements of social control, social learning, and strain theories predicted 3 measures of sexual behavior; and 2) to test an integrated theoretical model with 2-stage least squares regression to see if it fit the data on the 3 measures of sex. The measures of sexual behavior were frequency of sexual intercourse in the past year, number of sexual partners in the past year, and number of sexual partners in lifetime. Bivariate analyses revealed that the consistent predictors of the 3 measures of sex were age, gender, attachment to mother, beliefs, parental supervision and punishment, family and friend support, frustration, and use of rationalizations. The theoretical model that fit all measures of sex showed that bonding influences sexual behavior through frustration, and that age, gender and rationalizations directly impact behavior.

Early Olfactory Experience, Novelty, and Choice of Sexual Partner by Male Rats

After rearing by citral-scented or unscented dams, adult male rats were given simultaneous choices of citral-scented or unscented female partners in approach, contact, and sexual behavior tests. There was no evidence that mate choice had been affected by the early rearing experience. In Experiment 1, both citral and control males approached citral-scented females in a T-apparatus at slightly above chance levels and exhibited no differences in copulatory behavior during successive pairings. In Experiment 2, normally reared males directed their first mount more rapidly to a citral female, but otherwise mated equally with the scented and unscented females. In Experiment 3, citral-reared males approached citral and unscented females equally, whereas controls approached citral females less often. With 2 females in the same arena (Exp. 3), the first mount was more rapid when the odor of the partner matched that of the dam, but no other measure of sexual behavior was affected by the partner's odor. Despite the importance of early olfactory experience for the development of social behavior, a preference for estrous-related odors is evidently not learned before mating experience. Under some circumstances, a novel odor added to familiar conspecific odors may attract naive males to potential partners.

Behind the Pencil/Paper Measurement of Sexual Coercion: Interview‐Based Clarification of Men's Interpretations of Sexual Experiences Survey Items1

The ubiquity of self‐report pencil and paper surveys in sexual coercion research is matched only by the lack of attention to respondents' individual interpretations of survey items. Our purpose in this study was to examine men's interpretations of four apparently ambiguous items from a commonly used sexual coercion research instrument, the original Sexual Experiences Survey (SES; Koss &amp; Oros, 1982). After completing the SES, college men (N = 102) were immediately interviewed about their interpretations of 4 of the SES items. Across the interviews, the men reported a variety of interpretations of each item. Ignoring SES item interpretations when forming research conclusions has significant implications for sexual coercion research. Based on the results of this investigation, we urge caution in interpreting results of studies based on self‐administered measures of coercive sexual behavior.

Health beliefs and teenage condom use: a prospective study.

The authors investigated the extent to which Health Belief Model (HBM) measures can be used to predict subsequent sexual activity and consistency of condom use among teenagers, especially those who report having new sex partners. Results from a longitudinal survey of sex behavior and HIV-relevant cognitions among 258 sexually active 16 and 18 year olds in Dundee, Scotland, are reported. Participants responded to a confidential postal questionnaire on their demographic characteristics, previous sexual experience, prior condom use, beliefs specified by the HBM, peer norms regarding condom use, and condom use intentions. Measures of sexual behavior and condom use consistency were then included in a follow-up questionnaire 1 year later. Demographic and HBM measures, as determined through discriminant analysis, did not account for significant proportions of variance in the consistency of condom use or mediate the effects of prior sexual experience or demographic measures. The respondents who reported more frequent sexual intercourse were less likely to use condoms consistently while those who had used condoms previously reported more consistent use. Female respondents were less likely than the young men to follow through upon their intentions to consistently use condoms.

Dose-dependent decrements in adult male rat sexual behavior after neonatal clorimipramine treatment

Previous studies found that months after clorimipramine (CLI) treatment of male neonatal rats, the mature animals developed behavioral deficits and REM sleep abnormalities that modeled human endogenous depression. In the initial studies neonatal rats received CLI 30 mg/kg/IP daily from age 8 through 21 days. Diminished sexual activity of the adult rats treated neonatally in this manner was a behavioral deficit that supported the depression model. However, in subsequent studies in our laboratory, the same neonatal treatment occasionally failed to produce adult sexual deficiencies found in the initial studies. The inconsistency raised the possibility that neonatal CLI treatment was not a reliable method to produce an animal model of depression. An alternative hypothesis was that the CLI dose was too low. The present study tested this hypothesis. Placebo or one of four CLI doses was administered daily to male neonatal rats ( n = 12/treatment group) from age 8 days through 21 days: 30 (the original dose), 40, 50, and 60 mg/kg/IP. Six components of adult sexual behavior were measured at age 5 months. Deficiency of each sexual behavior was found to be dose-dependent ( r = 0.5, p < 0.001). The 30 mg/kg/day dose caused deficiencies in some, but not all, sexual behavior measures. Higher doses caused deficiencies in all measures of sexual behavior. The results support the hypothesis that neonatal CLI treatment at doses higher than the original 30 mg/kg/day caused reliable impairments in adult male rat sexual behavior, and thereby support the reliability of neonatal CLI treatment to produce an animal model of endogenous depression.

Ethnic and gender differences in sexuality: Variations in sexual behavior between Asian and non-Asian university students

Seven hundred and two (346 non-Asian, 356 Asian) undergraduate volunteers were assessed in a confidential laboratory setting on levels of interpersonal sexual behavior (e.g., petting, intercourse), intrapersonal sexual behavior (e.g., fantasy, masturbation), and sociosexual restrictiveness (e.g., lifetime number of partners, number of "one-night stands"). The purpose was to examine possible differences in sexual behavior between Asian and non-Asian Canadian university students and to determine the association between North American residency and the sexual behavior of Asians. The role of gender on sexual behavior both across and within ethnic groups was also examined. Statistical analyses revealed that Asian students were significantly more conservative than non-Asian students on all measures of interpersonal sexual behavior and sociosexual restrictiveness. Significant differences were also noted between Asian and non-Asian students on most measures of intrapersonal sexual behavior. With the exception of two fantasy items, length of residency in Canada was unrelated to interpersonal sexual behavior, intrapersonal sexual behavior, or sociosexual restrictiveness among Asians. Although gender differences were substantial for intrapersonal sexual behaviors such as fantasy and masturbation, no significant gender differences were found for measures of interpersonal sexual experience, with the exception of reported number of one-night stands.