Detailed analysis of the male copulatory motor pattern in mammals: hormonal bases

Data obtained, using a polygraphic technique, on the characteristics of the motor and genital copulatory responses of male rabbits, rats, mice, hamsters, and guinea pigs are reviewed. This methodology provided detailed information, not accessible to other analyses, on the frequency and dynamic organization of copulatory pelvic thrusting trains of the species studied. This comparative analysis showed that: (1) The male rat may display two types of ejaculatory responses, differing in the dynamic organization of the pelvic thrusting train, and in the duration of the intravaginal thrusting period preceding ejaculation. (2) In the guinea pigs and small rodents, but not in rabbits, pelvic thrusting at ejaculatory responses persists during intromission, and a period of fast intravaginal thrusting is associated with ejaculation. (3) The motor copulatory pattern of the rabbit, but not of the rat, hamster, or guinea pig, is affected by castration and hormone treatment, suggesting that, in rabbits, androgen acts both on motivation and on the spinal neural systems related to copulation.     

The psychophysiological correlates of risk recognition among victims and non-victims of sexual assault

This study examined the psychophysiological correlates of risk recognition in sexual victimization. Victims and non-victims of sexual assault listened to a hypothetical date rape interaction and were asked to indicate the point at which the man had become sexually inappropriate. Subjective and objective (physiology) measures of responding as well as a measure of risk recognition in reaction to the date rape scenario were analyzed to evaluate both between and within-subjects' differences. Results showed that, relative to non-victims, victims of sexual assault displayed significant differences in risk recognition as well as both subjective and objective measures of physiological reactivity. Overall, the results indicate that altered physiological responding to relevant threat cues may be related to individuals' ability to identify and react to threatening sexual situations.     

Therapeutic change in adolescents sexual offenders

IntroductionA number of studies have shown that the treatment of adolescents who have engaged in sexually abusive behavior (AESABs) reduces their risk of sexual recidivism. However, few studies have examined the internal processes leading to these results.ObjectiveThe purpose of our research was to determine whether the treatment of AESABs (n = 43) influences the following factors related to sexual offending: deficient social skills, social isolation, ineffective coping strategies, and cognitive distortions. The impact of motivation for change and trauma symptoms on therapeutic progress was also examined.MethodPre/post-treatment analyses were completed.ResultsThe results of our pre/post-treatment analyses indicate significant changes in social isolation, coping strategies and cognitive distortions, and a significant reduction of trauma symptoms. Only social skills remained deficient. The data on motivation were not sufficient to establish whether motivation was linked to the progress of the subjects.DiscussionOur study highlights the importance of interventions targeting the acquisition of social skills in AESABs. Trauma is also an important factor to consider in the assessment of therapeutic progress, despite not being directly related to sexually abusive behaviour. The limits of the study highlight the importance of establishing an a priori program evaluation framework.     

Cultural Considerations for Treating PTSD in Latinx Sexual Assault Survivors With Prolonged Exposure

There is growing interest in the implementation of culturally responsive mental health care that balances treatment fidelity and cultural fit (Castro et al., 2004). Prolonged exposure (PE) is a first-line, evidence-based treatment for posttraumatic stress disorder (PTSD) and has been successfully implemented in low-income and ethnoracial minority samples (Feske, 2008) and with Latinx individuals specifically (Vera et al., 2011). However, cultural and systemic factors may contribute to Latinx individuals experiencing higher conditional risk for PTSD (Alcántara et al., 2013), disparities in mental health care utilization (Alves-Bradford et al., 2020), and challenges with PTSD treatment delivery (Valentine et al., 2017). Culturally responsive implementation of PE with Latinx clients involves making culturally informed but person-specific assessments of clients, with adaptations as needed. We propose several culturally responsive strategies for therapists to consider when conducting PE with Latinx sexual assault survivors, such as building trust and rapport early on, conducting culturally informed assessment, investing in psychoeducation, optimizing imaginal exposure and in vivo exposure, and problem-solving barriers to homework engagement. Therapists are encouraged to approach this work with cultural humility (Fisher-Borne et al., 2015; Tervalon & Murray-Garcia, 1998) through open listening, critical self-reflection, and consideration for the way in which Latinx identity intersects with other important identity characteristics that can impact treatment relevance and engagement.     

Subjective Sleep Disturbances in Sexual Assault Survivors: Associations With Trauma and Posttraumatic Stress Disorder Symptom Severity

Prior work implicates sleep disturbance in the development and maintenance of posttraumatic stress disorder (PTSD). However, the majority of this literature has focused on combat veteran men, and limited work has examined links between sleep disturbance and PTSD symptoms in sexual assault survivors. This is a notable gap in the literature, as sexual trauma is disproportionately likely to result in PTSD and is more common in women. We sought to examine the relations between subjective sleep disturbance, sexual assault severity, and PTSD symptoms in a sample of sexual assault survivors with PTSD (PTSD+), without PTSD (PTSD-), and healthy controls. The sample (N = 60) completed the Insomnia Severity Index and prospectively monitored their sleep for 1 week using the Consensus Sleep Diary. The sexual assault survivors also completed the Sexual Experiences Survey and PTSD Checklist-5. Results of group comparisons found that the PTSD+ group reported significantly higher insomnia symptoms, longer sleep onset latency, more nocturnal awakenings, and lower sleep quality compared to the healthy control group and higher insomnia symptoms compared to the PTSD- group. Results of regression analyses in the sexual assault survivors found that insomnia symptoms and number of nocturnal awakenings were significantly associated with higher PTSD symptoms, and sexual assault severity was significantly associated with higher insomnia symptoms, longer sleep onset latency, and lower sleep quality. These findings highlight specific features of sleep disturbance that are linked to trauma and PTSD symptom severity among sexual assault survivors.     

Adolescents’ and their friends’ sexual behavior and intention: Selection effects of personality dimensions

Using simulation investigation for empirical network analyses (in RSiena) we examined how personality and sexual behavior and intention were related to peer processes in Dutch adolescents. Our main research questions were: (a) do adolescents cluster together in friendship networks based on personality, sexual behavior, and/or sexual intention? And (b), do adolescents influence each other in their sexual behavior and intention? Results showed that adolescents clustered together based on dissimilarity in agreeableness, and similarity in gender and sexual intention. Further, we found that adolescents with lower levels of emotional stability had friends with more similar levels of sexual intention. The limited variance and low base rates of sexual behavior and intention did not allow us to explicitly test socialization effects.     

Loneliness under assault: Understanding the impact of sexual assault on the relation between loneliness and suicidal risk in college students

The present study sought to examine for how loneliness and sexual assault are involved in predicting suicidal risk (viz., hopelessness & suicide probability) in a sample of 334 college students. Specifically, we were interested in examining whether sexual assault may play an additive as well as interactive role in the prediction of suicidal risk above and beyond loneliness. Results from regression analyses indicated that both loneliness and sexual assault were important and unique predictors of suicidal risk in students. Moreover, consistent with expectations, we found support for a Loneliness × Sexual Assault interaction in predicting both hopelessness and suicide probability. Inspection of the interactions indicated that the highest levels of suicidal risk were present for lonely students who had experienced some form of sexual assault. Some important implications of the present findings are discussed.     

Father Knows Best: Paternal Presence and Sexual Debut in African‐American Adolescents Living in Poverty

Adolescents found within single‐parent families without a residential father have reported higher levels of sexual debut and higher levels of reported pregnancy. Using data from the Mobile Youth Survey, the purpose of this study is to determine the impact of the presence of a father figure on the sexual debut of African‐American adolescents living in poverty and to determine if gender moderates the relationship between the presence of a father figure and sexual debut. Additionally, this study will examine the family processes in which the presence of a father figure can affect the sexual debut of African‐American adolescents who live within economically and socially disadvantaged communities. The results revealed that African‐American adolescents reporting a father figure had lower rates of sexual debut than those youth reporting no father figure. Gender was not found to be a significant moderator in the relationship between father figure presence and sexual debut. However, existing curfews and family rules did account for some of the effects of presence of a father figure and sexual debut. The results suggest that when adolescents have a father figure in their lives, it may reduce the possibility of early sexual debut.