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PubMed1999

Effects of naloxone on the acquisition and expression of appetitive and consummatory sexual behavior in male Japanese quail.

Previous studies in Japanese quail indicate that central administration of the opioid antagonist naloxone enhances consummatory sexual behavior (CSB). This effect could be related either to a decrease in sexual satiety or to previously documented stimulatory effects of naloxone on GnRH. The present studies were performed to investigate these two possibilities and to explore for the first time opioid involvement in the expression and acquisition of appetitive aspects of sexual behavior (ASB) in castrated, testosterone-treated Japanese quail. Although no effects on either ASB or CSB were observed in response to peripheral naloxone injections, a significant increase in CSB was observed in males receiving central injections of naloxone. Central injections of naloxone had no effect on the acquisition of a social proximity response used to measure ASB. However, compared to controls a greater number of naloxone-treated birds copulated in the test arena on the first day. Overall, these results indicate an inhibitory role for opioids in CSB, and suggest that opioids are differentially involved in different aspects of sexual behavior.

Analysis of Variance↗
PubMed1987

Friendship and dating relationships among French adolescents.

The focus of this study is to analyse, within the same population, the specificity of friendship in comparison with dating relationships among French adolescents. The subjects interviewed (63 boys and 82 girls, aged 15 to 19 years), all volunteers, were recruited from three "classic and modern" senior high schools and three vocational high schools. The data were collected by using a semi-directive interview (recorded) dealing with subjects' friendships and dating relationships. All hypotheses were confirmed: (1) Friendship between partners of the same sex constitutes the main form of privileged interpersonal relationship in early and middle adolescence. (2) The specificity of interactions between partners lies in their mode of relationship: psycho-social exchanges are more intimate between friends than between dating partners. (3) Exchanges between friends are more intimate than between dating partners even when these partners have complete sexual intimacy.

Adolescent↗
PubMed2002

Date violence and date rape among adolescents: associations with disordered eating behaviors and psychological health.

OBJECTIVES: The goal of the study was to assess the prevalence of date violence and rape in adolescents, to examine associations between date violence and rape and disordered eating behaviors and psychopathology, and to determine if these associations remain significant after controlling for sociodemographic characteristics and other physical and sexual abuse by an adult. METHOD: A Minnesota school-based sample of 81,247 boys and girls in 9th and 12th grades completed the 1998 Minnesota Student Survey. RESULTS: Overall, approximately 9% of girls and 6% of boys had experienced date violence or rape. Significant differences across race and grade were found. Date violence and rape is associated with higher rates of disordered eating behaviors and suicidal thoughts and attempts, and lower scores on measures of emotional well-being and self-esteem. Over 50% of youth reporting both date violence and rape also reported attempting suicide. Controlling for race and age, adolescents who have experienced both date violence and rape were more likely to use laxatives (OR: girls = 5.76; boys = 28.22), vomit (OR: girls = 4.74; boys = 21.46), use diet pills (OR: girls = 5.08; boys = 16.33), binge eat (OR: girls = 2.15; boys = 5.80), and have suicidal thoughts or attempts (OR: girls = 5.78; boys = 6.66) than their nonabused peers. These odds were weakened but remained significant after controlling for other abuse by an adult. Furthermore, a greater percentage of girls and boys who reported an abusive dating experience also reported repeat victimization (physical or sexual abuse perpetrated by an adult) when compared to their peers without an abusive dating experience. DISCUSSION: Abusive experiences during dating relationships may disrupt normal developmental processes, including the development of a stable self-concept and integrated body image during adolescence. This disruption manifests itself through thoughts, feelings, and behaviors. Further research should explore effects of adverse adolescent dating experiences.

Adolescent↗
PubMed2001

Similarity of the song nuclei of male and female Australian magpies (Gymnorhina tibicen).

The organisation of the song control nuclei of the Australian magpie (Gymnorhina tibicen), a species with highly complex song, was investigated. In contrast to most of the songbirds studied so far, the Australian magpie sings throughout the year and both males and females sing. All of the forebrain song nuclei, including the high vocal centre (HVC), the robust nucleus of the archistriatum (RA), Area X and the lateral and medial magnocellular nuclei of the anterior neostriatum (lMAN and mMAN) were found to be well developed in both male and female magpies. Consistent with the known vocal competence of juvenile magpies, all of the song nuclei were also well-developed in juvenile magpies (2--3 months old). HVC in both male and female magpies consists of a rostrolateral and a caudomedial region. The ventromedial part of RA differs from the dorsolateral part by having medium-sized neurons packed in higher density. The HVC to RA projections were labelled anterogradely by DiI and DiA. However, no HVC to Area X projections were labeled by DiI or DiA, suggesting a possible difference from songbirds studied previously.

Animals↗
PubMed1998

Prevention of marital dysfunction: behavioral approaches and beyond.

Marital dysfunction is a significant problem in the U.S., with far-ranging effects on the mental health, physical health, and economic well-being of people who experience it. In addition, marital discord and divorce appear to have adverse effects on children. This review describes the historical roots of current prevention programs and critically reviews marriage preparation programs that have been examined in the peer-reviewed literature. The results of 13 studies suggest that behaviorally oriented, skills-based marriage preparation programs can lead to behavioral changes that may help prevent the emergence of marital dysfunction. Whereas there has been modest improvement in the methodology of the program evaluations, suggestions for continued improvements are made. Ways to enhance the effectiveness of marriage preparation programs using the principles of prevention are described.

Behavior Therapy↗
PubMed1999

Dating violence in mid-adolescence: theory, significance, and emerging prevention initiatives.

Adolescent dating violence is an important juncture in the developmental pathway to adult partnership violence. As a window of opportunity for positive change, the present review considers the theoretical and empirical work on adolescent dating and dating violence. A consideration of the scope of the problem, developmental processes, and theoretical formulations precede a review of six relationship violence prevention programs designed for and delivered to youth. Five programs are school-based and one operates in the community. Prevention is targeted toward both universal (e.g., all high school students) and selected adolescent populations (e.g., youths with histories of maltreatment, or problems with peer aggression). Programs addressed specific skills and knowledge that oppose the use of violent and abusive behavior toward intimate partners; one program addressed interpersonal violence more generally, and was also included in this review because of its implications for dating violence initiatives. Positive changes were found across studies in violence-related attitudes and knowledge, also, positive gains were noted in self-reported perpetration of dating violence, with less consistent evidence in self-reported victimization. However, these findings should be considered preliminary due to limited follow-up and generalizability. Conceptual and methodological issues are discussed with a view toward improving assessment methods and research design.

Adolescent↗
PubMed2001

Dating violence: a critical review of the literature.

The investigation of dating violence has previously been underrepresented in the interpersonal violence literature. Within the past 2 decades, however, researchers have significantly advanced our knowledge of the variables associated with dating violence. This critical article provides a comprehensive review of the current body of literature on dating aggression. Research on dating violence is presented, progressing from prevalence rates and types of violence to an exploration of victim and perpetrator characteristics. There is an emphasis on the necessity to establish a theoretical model of typology to allow investigation of the distinct subgroups of violent individuals. The deficits in the present body of literature are presented and include sampling methods, dependent measures, and data analyses. Finally, implications for future research and prevention are provided.

Aggression↗
PubMed2001

Reduction of female-directed song motifs induced by repeated singing in laboratory-bred zebra finches.

Songbirds such as zebra finches show a remarkable degree of neural plasticity associated with the motor act of singing. Here we show that in adult male zebra finches repeated female-directed singing episodes are associated with a change in subsequent singing behavior involving a progressive long-lasting decline in the number of song motifs sung. This reduction in song motif production cannot be completely explained by the circadian rhythm, declining motivation or neuromuscular exhaustion. Paired song induction sessions reveal that the time course of motif reduction during repeated singing can be best explained by the cumulative effect of reduction produced by each singing episode. These results suggest that song production in zebra finches is prone to a form of rapid behavioral adaptation.

Adaptation, Physiological↗
PubMedDate not supplied

The influence of personality, cognition, and behavior on perceptions and metaperceptions following alcoholic beverage selection in a dating situation.

This study was designed to investigate perceptions and metaperceptions of individuals in a mixed sex dating situation in which they were offered alcohol. Male and female participants who were unfamiliar with one another were brought together in individual sessions and asked to imagine that they were on a blind date. At the outset of the 15-minute interaction, they each had an opportunity to select an alcoholic or nonalcoholic drink; after receiving their drink, they interacted privately. At the conclusion of the interaction, participants completed questionnaires that solicited their view of their partner and their perception of their partner's view of them. Results indicate that alcohol expectancies predicted alcoholic beverage selection. When women selected alcohol, they found their partner more likeable; those men whose partner was drinking believed that their partner found them more likeable. Additionally, when both partners were drinking they perceived each other as more extroverted, although they did not think their partner perceived them as extroverted. These results are discussed in terms of implications for further research on the role of alcohol as a cue in a mixed-sex social/dating environment.

Adult↗
PubMed1998

Factors and their origins in mate selection and choice among humans: implications for individual psychotherapy and counseling.

A mechanism of mate selection in humans is proposed and elaborated. It is further proposed that this mechanism constitutes one of the important factors for stability and the necessary longevity of the procreational dyad and therefore the procreational success of humans as a species. The concepts and mechanisms of assortative mating (homogamy) and that of complementarity of temperaments of the mates (heterogamy) which guide such selections are described, the relationships between the two are explored, and finally their possible early developmental origins are proposed. Evidence from a small study of 20 married couples' responses in temperament tests is offered as well as some illustrative case histories all pointing to those mechanisms. The argument is based mainly on principles of evolutionary psychology.

Adult↗
PubMed1999

Adolescent violence.

Adolescents are the victims, perpetrators, and witnesses of violent acts in the home, at school, and on the streets. Adolescent violence describes a dynamic, destructive, and repercussive process. This article discusses the unique aspects of adolescent violence and the involvement undertaken by the emergency department when adolescent violence results in the need for emergency care.

Adolescent↗
PubMed2006

Romance and sex: pre-marital partnership formation among young women and men, Pune district, India.

Using qualitative and survey data in a rural and an urban slum setting in Pune district, India, this paper describes patterns of pre-marital romantic partnerships among young people aged 15-24, in spite of norms that discourage opposite-sex interaction before marriage. 25-40% of young men and 14-17% of young women reported opposite-sex friends. Most young people devised strategies to interact with others, largely from the same neighbourhood. There were wide gender differences with regard to making or receiving romantic proposals, having a romantic partner and experiencing hand-holding, kissing and sexual relations. For those who engaged in sexual relations, the time from the onset of the partnership to having sexual relations was short. Sex most often took place without protection or communication, and for a disturbing minority of young women only after persuasion or without consent. Among those who were unmarried, a large percentage had expected to marry their romantic partner, but for a third of young women and half of young men the relationship had been discontinued. Partnership formation often leads to physical intimacy, but intimacy should be wanted, informed and safe. Findings call for programmes that inform youth in non-threatening, non-judgmental and confidential ways, respect their sexual rights and equip them to make safe choices and negotiate wanted outcomes.

Adolescent↗