An expanded approach to batterer intervention programs incorporating neuroscience research

Partner Violent Men's Perspectives on the Factors That They Believe Contributed to Their Abusive Behaviors

While research on perpetration of intimate partner violence (IPV) is growing, few studies have sought to explore perpetrators' perspectives on their abusive behaviors. Thus, much remains unknown regarding how perpetrators view their abuse. We conducted 34 semistructured, open-ended interviews with men convicted of an IPV crime in which we broadly explored their perspectives on contributors to abuse. A history of exposure to violence as children, experiences with other traumatic events, and other causes (e.g., drug abuse) were the most cited. Our findings highlight areas where intervention efforts need to be tailored to address the unmet needs of men who perpetrate.

Hormonal Profile in Response to an Empathic Induction Task in Perpetrators of Intimate Partner Violence: Oxytocin/Testosterone Ratio and Social Cognition

Empathy deficits have been proposed to be an important factor for intimate partner violence (IPV). IPV perpetrators have shown a differential change in salivary oxytocin (sOXT), testosterone (sT), and cortisol (sC), following empathic and stress tasks, compared to non-violent men. However, the influence of empathic deficits in those hormones after an emotion-induction task in IPV perpetrators remains unclear. We analyzed the effects of an empathic induction task on endogenous sOXT, sT and sC levels, as well as their hormonal ratios, in IPV perpetrators (n = 12), and compared them to controls (n = 12). Additionally, we explored the predictive capacity of empathy-related functions (measured with the interpersonal reactivity index) in the hormonal responses to the task. IPV perpetrators presented lower sOXT changes and higher total sT levels than controls after the task, lower sOXT/T change and total sOXT/T levels, as well as higher total sT/C levels. Notably, for all participants, the lower the perspective taking score, the lower the total sOXT levels and sOXT changes and the higher the sT changes were. Low perspective taking also predicted smaller sOXT/T and sOXT/C changes in the empathic induction task, and higher total sT/C levels for all participants. Therefore, our results could contribute to furthering our ability to focus on new therapeutic targets, increasing the effectiveness of intervention programs and helping to reduce IPV recidivism in the medium term.

Resting-state functional connectivity and socioemotional processes in male perpetrators of intimate partner violence against women

Intimate partner violence against women (IPVAW) is a serious and overwhelming public concern. Neuroimaging techniques have provided insights into the brain mechanisms underlying IPVAW perpetration. The purpose of this study is to examine the resting-state functional connectivity (rsFC) involving the process of social decision-making of male perpetrators. Twenty-six male perpetrators convicted for an IPVAW crime were compared to 29 men convicted for crimes other than IPVAW (other offenders) and 29 men with no criminal records (non-offenders) using a seed-based approach. Seeds were located in areas involved in reflective (prefrontal), impulsive (amygdala and striatum) and interoceptive (insula) processing. Then, as an exploratory analysis, the connectivity networks on male perpetrators were correlated with measures of executive functions and socioemotional self-report measures. Male perpetrators in comparison to other offenders and non-offenders, presented higher rsFC between prefrontal, limbic, brainstem, temporal and basal ganglia areas. Also male perpetrators showed higher rsFC between insula, default mode network and basal ganglia, while lower rsFC was found between prefrontal and motor areas and between amygdala, occipital and parietal areas. Exploratory correlations suggest that the specific rsFC in male perpetrators might be more related to socioemotional processes than to executive functions. These results showed that male perpetrators present a specific rsFC in brain systems that are essential for an adaptive social decision-making.

Treatment for perpetrators of intimate partner violence: What is the evidence?

Intimate partner violence (IPV) is recognized as a worldwide health issue that calls for urgent interventions to prevent the significant physical and mental harm it poses to the individuals involved and to reduce its wider deleterious impacts on society. Despite 40 years of research in the field, incidence rates of IPV have not significantly declined and treatment services for perpetrators of IPV are scarce. Empirical research has been hindered by ideological disputes, and the most commonly used treatment approaches-the feminist-oriented Duluth approach and cognitive-behavioral treatments-lack evidence for their efficacy. This introduction to this issue of In Session reviews these ideological controversies and the current state of empirical evidence for the treatment of perpetrators of IPV; and summarizes the five papers, commissioned from different countries in Europe, North America, and Africa, comprising this issue, each of which presents a novel therapeutic intervention for this heterogeneous population.

The effectiveness of interventions to prevent recidivism in perpetrators of intimate partner violence: A systematic review and meta-analysis

BACKGROUND

Previous reviews of interventions to prevent recidivistic intimate partner violence (IPV) have cited minimal benefits and have been critical of interventions adopting a 'one-size-fits-all' approach to a heterogenous category of offenders. The present systematic review and meta-analysis assesses evidence for interventions situated in a risk-need-responsivity framework, in comparison with the more traditional 'one-size-fits-all' intervention approach.

METHOD

Six databases (PsycINFO, Web of Science, PubMed, EMBASE, SCOPUS, PILOTS) were searched for studies examining effectiveness of IPV interventions.

RESULTS

Thirty-one studies met the inclusion criteria. Studies were analysed separately depending on whether they compared two treatments (n = 17) or used a no-treatment control group (n = 14). In the meta-analysis, overall effect sizes were OR = 0.52, 95% CI [0.35-0.78] for interventions with follow-up of ≤ one year (p < 0.001) and OR = 0.60, 95% CI [0.46-0.78] for interventions with follow-up between one and two years (p < 0.001). The pooled effects from the studies using follow-up of greater than two years did not reach statistical significance. Subgroup analyses suggested that effect sizes differed across treatment types, with risk-need-responsivity treatments performing well against other modalities.

CONCLUSIONS

Risk-need-responsivity treatments showed promise in the short-to-medium term, but the challenge of sustaining effects into the longer term remains.

Factors Associated With Batterer Intervention Program Attrition

Batterer intervention programs' (BIPs) curriculum have been criticized for their one-size-fits-all approach to rehabilitation with recent research suggesting specialized and client-centric approaches to batterer intervention may be more effective than traditional programming. Adverse childhood experiences (ACEs) have been examined as a risk factor for intimate partner violence (IPV) perpetration and numerous studies suggest a relationship between ACEs and low mental health treatment engagement. However, absent from the conversation is how ACEs may influence BIP treatment engagement and more specifically how ACEs influence BIP program attendance and attrition. The current study used administrative data from a sample of 268 men enrolled in a county-operated BIP to explore this question. BIP participants who experienced any ACEs, only household dysfunction ACEs, and/or both household dysfunction ACEs and child abuse/neglect ACEs had decreased odds of BIP attrition compared to participants with no ACEs. These findings have practical implications regarding screening, service delivery, and BIP curricula and highlight additional research needed on this topic.