Trauma und sexuelle Störungen

Background

Sexual disorders are common among patients with traumatic childhood experiences, especially when they were exposed to sexual abuse. Despite the fact that trauma-associated sexual disorders imply serious consequences for the persons concerned, to date the topic has not found much consideration in the research and clinical contexts.

Material and methods

This study investigated the prevalence and relationships of sexual disorders and experiences of sexual abuse in 189 patients (81?% women, 19?% men) with complex posttraumatic stress disorder. All participants completed the Interview zur Diagnostik der komplexen posttraumatischen Belastungsstörung (I-kPTBS, interview on diagnostics of complex posttraumatic stress disorder) and the traumatic antecedents questionnaire (TAQ).

Results

At least one sexual disorder was found in 77.2?% of the participants. In both sexes hyposexual disorders were more common than hypersexual disorders. Women showed more hyposexual disorders than men and men showed more hypersexual disorders than women. Of the participants 50.8?% reported experiences of sexual abuse and women were more often affected than men. The presence of hyposexual disorders was clearly associated with the existence of experiences of child sexual abuse.

Conclusion

There is a need for research on and effective treatment concepts for trauma-associated sexual disorders. The development of new therapeutic approaches should be realized in interdisciplinary cooperation.     

Changes in Behaviour and Body Weight Following a Single or Double Social Defeat in Rats

In a series of experiments, the consequences of a single and double social conflict on various behaviours and body weight in rats were studied. Animals were subjected to social defeat by placing them into the territory of an aggressive male conspecific for one hour, either once, or twice at the same time on two consecutive days. To assess the consequences of social defeat, three experiments were performed with independent groups of rats. In the first experiment, an open field test was performed two days after the last conflict. Locomotor activity was strongly reduced after social defeat. There were no differences between the single and double defeat group. To assess the effects of social defeat on subsequent social behaviour, a second experiment was performed in which experimental animals were confronted with an unfamiliar non-aggressive rat two days after a single or double conflict. Social defeat resulted in a reduction of social contact with the unfamiliar conspecific. There was no difference between the single and double conflict group. In the third experiment, the effects of social conflict on food intake, body weight and saccharine preference were measured. Food intake was not affected after a single conflict, but in the double conflict group food intake was decreased for several days. Body weight gain was decreased after both single and double social defeat. The decrease was stronger in the double conflict group. Water intake and saccharine preference were not significantly affected. This study revealed that social defeat in rats causes pronounced changes in various behaviours and body weight. Different aspects of behaviour are differentially affected by defeat with respect to the magnitude and time course of the changes induced. Moreover, different behavioural parameters are differentially sensitive to repetition of the stressor.