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Dive into the research topics where Katharin Hermenau is active.

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Featured researches published by Katharin Hermenau.


Child and Adolescent Psychiatry and Mental Health | 2011

Childhood adversity, mental ill-health and aggressive behavior in an African orphanage: Changes in response to trauma-focused therapy and the implementation of a new instructional system

Katharin Hermenau; Tobias Hecker; Martina Ruf; Elisabeth Schauer; Thomas Elbert; Maggie Schauer

BackgroundThe number of orphans in Sub-Saharan Africa is constantly rising. While it is known that family or community care is preferable over institutional care of African orphans, little is known about the quality of care in orphanages and possibilities of improvement.Study 1MethodsExposure to traumatic stress, experiences of violence in the home, school and orphanage, as well as mental ill-health and aggression of 38 children (mean age of M = 8.64 years) living in an orphanage in rural Tanzania were assessed at two time points. The severity of post-traumatic stress disorder symptoms (PTSD), depressive symptoms, and internalizing and externalizing problems were used as indicators of mental ill-health.ResultsViolence experienced in the orphanage correlated more strongly with all indicators of mental ill-health than violence in the former home, school or neighborhood at time point 1. Additionally, violence experienced in the orphanage had a positive relationship with the aggressive behavior of the children at time point 2.Study 2MethodsWith the help of the pre-post assessment of Study 1, the implementation of a new instructional system and psychotherapeutic treatment (KIDNET) for trauma-related illness were evaluated.ResultsIn response to both, a change in the instructional system and psychotherapeutic treatment of PTSD, a massive decline in experienced violence and in the severity of PTSD-symptoms was found, whereas depressive symptoms and internalizing and externalizing problems exhibited little change.ConclusionsThese studies show that violence, especially in the orphanage, can severely contribute to mental ill-health in orphans and that mental health can be improved by implementing a new instructional system and psychotherapeutic treatment in an orphanage. Moreover, the results indicate that the experience of violence in an orphanage also plays a crucial role in aggressive behavior of the orphans.


Child Abuse & Neglect | 2014

Corporal punishment and children's externalizing problems: A cross-sectional study of Tanzanian primary school aged children ☆

Tobias Hecker; Katharin Hermenau; Dorothea Isele; Thomas Elbert

The adverse effect of harsh corporal punishment on mental health and psychosocial functioning in children has been repeatedly suggested by studies in industrialized countries. Nevertheless, corporal punishment has remained common practice not only in many homes, but is also regularly practiced in schools, particularly in low-income countries, as a measure to maintain discipline. Proponents of corporal punishment have argued that the differences in culture and industrial development might also be reflected in a positive relationship between the use of corporal punishment and improving behavioral problems in low-income nations. In the present study we assessed the occurrence of corporal punishment at home and in school in Tanzanian primary school students. We also examined the association between corporal punishment and externalizing problems. The 409 children (52% boys) from grade 2 to 7 had a mean age of 10.49 (SD=1.89) years. Nearly all children had experienced corporal punishment at some point during their lifetime both in family and school contexts. Half of the respondents reported having experienced corporal punishment within the last year from a family member. A multiple sequential regression analysis revealed that corporal punishment by parents or by caregivers was positively related to childrens externalizing problems. The present study provides evidence that Tanzanian children of primary school age are frequently exposed to extreme levels of corporal punishment, with detrimental consequences for externalizing behavior. Our findings emphasize the need to inform parents, teachers and governmental organizations, especially in low-income countries, about the adverse consequences of using corporal punishment be it at home or at school.


International Journal of Law and Psychiatry | 2012

Appetitive aggression in former combatants - Derived from the ongoing conflict in DR Congo

Tobias Hecker; Katharin Hermenau; Anna Maedl; Thomas Elbert; Maggie Schauer

Soldiers and combatants often report that committing violence can be appealing, fascinating and exciting (Elbert, Weierstall, & Schauer, 2010). This appetite for aggression was investigated in a sample of 224 former combatants from different armed groups and forces in eastern DRC. In a semistructured interview they were questioned about their military history, exposure to violence and perpetrated violence. Appetitive aggression was assessed with a 15-item-scale (Weierstall & Elbert, 2011), which was successfully implemented in comparable samples (Weierstall, Schalinski, Crombach, Hecker, & Elbert, submitted for publication). A sequential multiple regression was conducted to determine possible predictors of appetitive aggression. Perpetrated violence types, recruitment type, and joining as a child were significant predictors and explained 26% of the variability in appetitive aggression. Duration or military rank within the armed group and exposure to violence did not play a significant role. Thus, combatants reporting high levels of appetitive aggression are characterized by perpetrating a high number of violent acts, joining armed groups on their own accord and as children. Joining an armed group on ones own accord indicates pre-existing appetitive aggression. However, joining young and perpetrating violence on a regular basis seem to intensify the appetite for aggression.


Journal of Traumatic Stress | 2013

Does perpetrating violence damage mental health? Differences between forcibly recruited and voluntary combatants in DR Congo.

Tobias Hecker; Katharin Hermenau; Anna Maedl; Harald Hinkel; Maggie Schauer; Thomas Elbert

As a consequence of the ongoing conflict in the Democratic Republic of the Congo (DRC), combatants are constantly involved in various forms of violence. Findings concerning the impact of perpetrating violence on mental health are contradictory, ranging from increasing to buffering the risk for mental ill health. The present study investigated the impact of perpetrating violence on mental health. In total, 204 forcibly recruited and voluntary male combatants (mean age = 24.61 years) from different armed groups in the eastern DRC took part in the study. In a semistructured interview, respondents were questioned about appetitive aggression and posttraumatic stress disorder (PTSD) as well as self-experienced violence and self-perpetrated violent offending. A multivariate analysis of variance (η(2) = .23) revealed that voluntary combatants perpetrated more violent acts (η(2) = .06) and showed higher appetitive aggression η(2) = .03). A moderated multiple regression analysis (R(2) = .20) showed that perpetrating violence was positively related to PTSD in forcibly recruited combatants, but not in voluntary combatants. Thus, perpetrating violence may not necessarily qualify as a traumatic stressor. Further studies might consider assessing the combatants perception of committing violent acts.


Tradition | 2014

MALTREATMENT AND MENTAL HEALTH IN INSTITUTIONAL CARE—COMPARING EARLY AND LATE INSTITUTIONALIZED CHILDREN IN TANZANIA

Katharin Hermenau; Tobias Hecker; Thomas Elbert; Martina Ruf-Leuschner

Research has shown the harmful potential of institutional care on young children; however, little is known about the consequences of institutional care on infants in Sub-Saharan Africa. We compared 35 Tanzanian children who were institutionalized at birth to 4 years of age with a matched group of 35 children who were institutionalized at 5 to 14 years of age. We examined adverse childhood experiences over the course of their entire lives, in their family of origin and in institutional care, and mental health problems at primary school age, such as depressive symptoms, aggressive behavior, and internalizing and externalizing problems. Results showed that early institutionalized children reported more adverse experiences during their time in institutional care and a greater variety of mental health problems than did late institutionalized children. Moreover, maltreatment in institutional care was positively related to mental health problems only in early institutionalized children. We conclude that adverse experiences in institutional care play an important role for early institutionalized children who need special care from adequately educated caregivers. Therefore, training concepts focusing on the needs of the youngest children have to be developed, tested, and established. Countries such as Tanzania need policies that apply to all orphanages to ensure an adequate standard of quality in childcare.


Journal of Aggression, Maltreatment & Trauma | 2013

Addressing Post-traumatic Stress and Aggression by Means of Narrative Exposure: A Randomized Controlled Trial with Ex-Combatants in the Eastern DRC

Katharin Hermenau; Tobias Hecker; Susanne Schaal; Anna Maedl; Thomas Elbert

Former child soldiers and ex-combatants are at high risk of developing trauma-related disorders and appetitive aggression, which reduce successful integration into peaceful societies. In a randomized controlled clinical trial, we offered Narrative Exposure Therapy for Forensic Offender Rehabilitation (FORNET) to 15 ex-combatants with the goal of reducing traumatic stress and appetitive aggression compared to “treatment as usual.” Measures included the PTSD Symptom Scale-Interview and the Appetitive Aggression Scale assessed prior to treatment and 2 weeks and 6 months after the treatment. We also assessed closeness to combatants as an index of reintegration. The treatment group reported reduced PTSD symptoms and less contact with combatants. Appetitive aggression decreased substantially in both groups. The results indicate that it is feasible to add psychological treatment to facilitate the reintegration process. We wish to thank the former combatants and former child soldiers who participated in this study and the Congolese translators. We also want to thank the very motivated and reliable staff of the reintegration center, especially Pascal Badibanga Zagabe, Leonce Kyakimwa, Lydie Mirimo Ajua, David Ngufu, and Matata Banyene. Furthermore, we want to thank Charlotte Salmen for conducting the follow-up interviews and James Moran for conducting the follow-up interviews as well as proofreading the manuscript. Sources of support: Deutsche Forschungsgemeinschaft (DFG), vivo international. Trial registration clinicaltrials.gov Identifier: NCT01625117


European Journal of Psychotraumatology | 2013

Growing up in armed groups: trauma and aggression among child soldiers in DR Congo

Katharin Hermenau; Tobias Hecker; Anna Maedl; Maggie Schauer; Thomas Elbert

Background Child soldiers are often both victims and perpetrators of horrendous acts of violence. Research with former child soldiers has consistently shown that exposure to violence is linked to trauma-related disorders and that living in a violent environment is correlated with enhanced levels of aggression. Objective To gain more insight into the experiences and the mental health status of former child soldiers, we conducted a survey with N=200 former child soldiers and adult combatants in the DR Congo. Methods We conducted semi-structured interviews concerning military experiences, experienced and perpetrated violence, and mental health. Results Former child soldiers reported more experienced and perpetrated violence, a greater severity of trauma-related suffering, as well as higher appetitive aggression than adult ex-combatants. Appetitive aggression was related to more perpetrated violence, higher military ranks, voluntary recruitment and higher rates of reenlistments in former child soldiers. Conclusions Our results indicate that growing up in an armed group is related to higher levels of trauma-related disorders and aggressive behavior. This may explain the challenge of reintegrating former child soldiers. It is thus important to consider mental health problems, particularly trauma-related disorders and aggressive behavior, of former child soldiers for designing adequate reintegration programs.


European Journal of Psychotraumatology | 2013

Aggression inoculates against PTSD symptom severity* insights from armed groups in the eastern DR Congo

Tobias Hecker; Katharin Hermenau; Anna Maedl; Maggie Schauer; Thomas Elbert

Background In the ongoing conflict in the Democratic Republic of the Congo (DRC), combatants are exposed to massive forms of violence and other traumatic stressors. Nevertheless, many combatants do not suffer from trauma-related disorders, although they have experienced numerous traumatizing events. Perceiving aggressive behavior as fascinating and arousing might be a defense against trauma-related disorders in the violent environment of war and conflict. Objective Thus, in this study we investigated the relationship between the exposure to traumatic stressors, appetitive aggression, and posttraumatic stress disorder (PTSD) symptom severity. We hypothesized that cumulative traumatic experiences correlated positively and appetitive aggression negatively with PTSD symptom severity. Method In total, 105 voluntary male combatants from different armed groups in the eastern DRC took part in this study. In a semistructured interview, respondents were questioned about their exposure to traumatic stressors, the extent of appetitive aggression (Appetitive Aggression Scale) and their PTSD symptom severity (PTSD Symptom Scale - Interview). Results A multiple sequential regression analysis showed that traumatic events were positively related to PTSD symptom severity. For participants with low to medium PTSD symptom severity, appetitive aggression correlated negatively with PTSD symptom severity. Conclusions The results of this study provide further support for earlier findings that repeated exposure to traumatic stressors cumulatively heightens the risk of PTSD and revealed that appetitive aggression buffers the risk of developing PTSD symptoms under certain circumstances. Thus, the perception of aggressive behavior as fascinating and arousing seem to help combatants to adapt to violent environments but may also be one reason for recurrent failure of reintegration programs for excombatants.


Frontiers in Psychology | 2015

Improving care quality and preventing maltreatment in institutional care - a feasibility study with caregivers.

Katharin Hermenau; Elisa Kaltenbach; Getrude Mkinga; Tobias Hecker

Institutionalized children in low-income countries often face maltreatment and inadequate caregiving. In addition to prior traumatization and other childhood adversities in the family of origin, abuse and neglect in institutional care are linked to various mental health problems. By providing a manualized training workshop for caregivers, we aimed at improving care quality and preventing maltreatment in institutional care. In Study 1, 29 participating caregivers rated feasibility and efficacy of the training immediately before, directly after, and 3 months following the training workshop. The results showed high demand, good feasibility, high motivation, and acceptance of caregivers. They reported improvements in caregiver–child relationships, as well as in the children’s behavior. Study 2 assessed exposure to maltreatment and the mental health of 28 orphans living in one institution in which all caregivers had been trained. The children were interviewed 20 months before, 1 month before, and 3 months after the training. Children reported a decrease in physical maltreatment and assessments showed a decrease in mental health problems. Our approach seems feasible under challenging circumstances and provides first hints for its efficacy. These promising findings call for further studies testing the efficacy and sustainability of this maltreatment prevention approach.


Development and Psychopathology | 2016

Associations among child abuse, mental health, and epigenetic modifications in the proopiomelanocortin gene (POMC) : a study with children in Tanzania

Tobias Hecker; Karl M. Radtke; Katharin Hermenau; Andreas Papassotiropoulos; Thomas Elbert

Child abuse is associated with a number of emotional and behavioral problems. Nevertheless, it has been argued that these adverse consequences may not hold for societies in which many of the specific acts of abuse are culturally normed. Epigenetic modifications in the genes of the hypothalamus-pituitary-adrenal axis may provide a potential mechanism translating abuse into altered gene expression, which subsequently results in behavioral changes. Our investigation took place in Tanzania, a society in which many forms of abuse are commonly employed as disciplinary methods. We included 35 children with high exposure and compared them to 25 children with low exposure. Extreme group comparisons revealed that children with high exposure reported more mental health problems. Child abuse was associated with differential methylation in the proopiomelanocortin gene (POMC), measured both in saliva and in blood. Hierarchical clustering based on the methylation of the POMC gene found two distinct clusters. These corresponded with childrens self-reported abuse, with two-thirds of the children allocated into their respective group. Our results emphasize the consequences of child abuse based on both molecular and behavioral grounds, providing further evidence that acts of abuse affect children, even when culturally acceptable. Furthermore, on a molecular level, our findings strengthen the credibility of childrens self-reports.

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Anna Maedl

University of Konstanz

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