Weakened sympathetic response and lower parasympathetic activity in intimate partner violence perpetrators when empathizing: Influence of autonomous activation in affective approach and prosocial behavior.

The autonomic nervous system (ANS) functioning has been proposed as a relevant method to characterize the therapeutic needs of intimate partner violence (IPV) perpetrators. Nevertheless, research has neglected the influence of the ANS on socio-affective functions in this population. The aim of the present study was to analyze the psychophysiological activity of IPV perpetrators (n = 52) compared to controls (n = 46) following an empathic induction task, performed through negative emotion-eliciting videos. We employed two general ANS markers (heart rate [HR] and respiratory rate [RR]), two sympathetic-related indexes (pre-ejection period [PEP] and skin conductance level [SCL]) and a parasympathetic biomarker (respiratory sinus arrhythmia [RSA]). Additionally, we explored the impact of psychophysiological activity on prosocial behavior using Hare's donation procedure. Compared to controls, IPV perpetrators reported lower HR and SCL following the task, as well as longer PEP, suggesting an attenuated sympathetic response to others' distress. No differences in the RSA response pattern were found, however, IPV perpetrators displayed lower overall RSA levels throughout the protocol, indicative of reduced parasympathetic activity. Besides, while no differences in prosocial performance were observed, greater sympathetic responses and overall parasympathetic activity predicted increased donations across the sample. Thus, a high sympathetic and parasympathetic activity might influence the occurrence of prosocial behavior. The present study provides further evidence supporting that IPV perpetrators cope differently with others' negative emotions. In line with this biopsychosocial perspective, insights are gained on the emotional processing of IPV perpetrators which, in turn, could contribute to improve IPV psychotherapeutic programs.

A Meta-analysis of Cognitive Functioning in Intimate Partner Violence Perpetrators.

Numerous psychologists have shown interest in applying neuropsychological tests to study intimate partner violence (IPV) perpetrators and gain a further understanding of the underlying nature of this type of violence. However, up until now, no meta-analysis has drawn on all the available scientific literature to calculate whether consistent differences exist between the neuropsychological performance of IPV perpetrators and other samples of men (non-violent men, IPV perpetrators with drug misuse, and other men with criminal history). The aim of this study was to carry out this calculation and also measure whether neuropsychological performance explained IPV perpetration. We conducted a meta-analysis following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) criteria. After initially identifying 7243 sources, we eventually included a total of 25 publications. The number of studies included for effect size calculation in each cognitive domain ranged from two to nine. Taking solely into account studies comparing IPV perpetrators with non-violent men, our findings indicate that both IPV perpetrators who misuse drugs and those who do not exhibit worse neuropsychological functioning compared to non-violent men. These differences range from moderate to large for working memory, switching attention, cognitive flexibility, planning abilities, and phonemic fluency. However, while low functioning in response IQ was only observed in IPV perpetrators without drug misuse, continuous attention performance only differed in IPV perpetrators with drug misuse. It should be noted that most conclusions were consistent. In addition, the comparison between IPV perpetrator subsamples and other types of criminal convictions only revealed differences in switching attention, with IPV perpetrators presenting worse abilities than the rest of the subsamples. Finally, we also found some support for significant associations between neuropsychological performance and both physical and psychological IPV perpetration. This meta-analysis is a significant contribution that will help inform future clinical strategies for the early detection of cognitive needs. It will also guide the implementation of new or complementary intervention programs.

Dropout and recidivism are partly explained by emotional decoding and perspective taking deficits of intimate partner violence perpetrators.

Professionals and researchers have dedicated important efforts to understanding the underlying factors that explain the failure to complete interventions (dropout) and the recidivism of men convicted of intimate partner violence (IPV) against their female partners. There is a growing interest in measuring emotional decoding and empathic deficits in IPV perpetrators to better understand dropout and recidivism proneness, due to their direct impact on behavioral regulation. In the current study, we first aimed to examine whether the emotional decoding abilities of facial expressions and empathic abilities (cognitive and emotional), as well as their interrelationships in IPV perpetrators (n = 561), would explain dropout, treatment attendance, and recidivism (risk and official) once treatment ended. Our results allowed us to conclude that emotional decoding abilities and perspective taking (cognitive empathy) were significantly and negatively associated with dropout and recidivism. Two moderation models were significant. On the one hand, participants with low emotional decoding abilities presented lower intervention doses the lower their perspective taking. Furthermore, the percentage of participants that reoffended was higher among individuals with low and moderate perspective taking who dropped out. Therefore, our study highlights the importance of conducting emotional decoding and empathic assessments during the initial stages of intervention programs to clearly outline the therapeutic needs of IPV perpetrators. This would allow designing coadjuvant and complementary training programs that can support the main interventions by increasing treatment adherence and, in turn, reducing the risk of recidivism.

Influence of substance use and cognitive impairment on adherence to antiretroviral therapy in HIV+ patients. / Perfil cognitivo de los alcohólicos abstinentes durante un periodo de tiempo prolongado en comparación con un grupo de hombres que no consumen alcohol.

Scarce studies have focused on the cognitive profile of chronic alcoholic men after long-term abstinence. Thus, we examined neuropsychological differences between long-term abstinent alcoholics for an average of 3.2 years (n = 40, LTAA; age = 45.55 ± 8.99) and matched for socio-demographic variables with non-alcoholic controls (n = 39; age = 42.05 ± 11.33). To this aim, we employed a neuropsychological assessment battery covered relevant cognitive domains: IQ, memory, attention, executive functions and empathy. LTAA presented deficits in abstract reasoning, speed processing, sustained attention, working and long-term memory (verbal and visuospatial), cognitive flexibility, inhibition and planning. Although our results must be interpreted with caution because of the cross-sectional nature of our study, it may offer a broader knowledge and understanding of alcohol-related socio-cognitive deficits after long-term abstinence. These deficits might entail risk factors for relapse in alcohol consumption, as they may interfere with recording therapeutic advice and internalizing the verbal material presented in rehabilitation programs. In turn, these impair the global efficacy of alcohol-relapse prevention programs. Hence, this knowledge could be applicable in guiding the development of early coadjutant treatments.

Solo pocos estudios han analizado el perfil cognitivo de los hombres con un trastorno por consumo de alcohol tras un periodo de abstinencia prolongado. Por tanto, este estudio tiene como principal objetivo analizar las diferencias neuropsicológicas entre un grupo de hombres con trastorno por consumo de alcohol pero abstinentes de forma ininterrumpida durante 3,2 años (n = 40, edad = 45,55 ± 8,99) en comparación con un grupo de hombres sin trastorno por consumo de alcohol pero con unas características socio-demográficas similares a las del grupo experimental (n = 39; edad = 42,05 ± 11,33) para establecer diferentes perfiles neuropsicológicos. Empleamos una batería neuropsicológica exhaustiva que evaluó los siguientes dominios cognitivos: CI, memoria, atención, funciones ejecutivas y empatía. El grupo de hombres alcohólicos abstinentes presentaron déficits en razonamiento abstracto, velocidad de procesamiento, atención sostenida, memoria de trabajo y a largo plazo (para información verbal y visuoespacial), flexibilidad cognitiva, y en las capacidades de inhibición y planificación. A pesar de que nuestros resultados deben interpretarse con cautela dado el carácter transversal de nuestro estudio, ofrece información relevante sobre el estado cognitivo de los hombres con un trastorno por consumo de alcohol tras una abstinencia prolongada. Estos déficits podrían estar implicados en las frecuentes recaídas en esta población. Del mismo modo, interferirían en la asimilación de contenidos teóricos de intervenciones psicoterapéuticas, lo que, a su vez, disminuiría la eficacia de las mismas. Por ello, estos resultados deberían ser empleados para el desarrollo de programas de rehabilitación cognitivos coadyuvantes a la psicoterapia.

Improving empathy with motivational strategies in batterer intervention programmes: Results of a randomized controlled trial.

OBJECTIVES: Empathy (i.e., the ability to decode emotions, as well as cognitive and emotional empathy) is involved in moral reasoning, prosocial behaviour, social and emotional adequacy, mood and behaviour regulation. Hence, alterations in these functions could reduce behaviour control and the adoption of specific types of violence such as intimate partner violence (IPV). Although interventions for IPV perpetrators focus on reducing IPV risk factors and increasing protective factors to prevent this kind of violence, the study of the effectiveness of these programmes in promoting changes in empathy (cognitive and emotional) has been neglected. DESIGN: Hence, the main aim of this study was to compare the effectiveness of two different modalities of IPV intervention programmes (Standard Batterer Intervention Programs [SBIP] vs. SBIP + Individualized Motivational Plan [IMP]) in promoting empathic improvements after both interventions. METHOD: Participants were randomly assigned to receive SBIP (n = 40) or SBIP + IMP (n = 53). The effectiveness of the intervention in the total sample and the group effects were evaluated with general linear model repeated-measures ANOVA. RESULTS: Results revealed that only the IPV perpetrators who received the SBIP + IMP were more accurate in decoding emotional facial signals and presented better cognitive empathy (perspective taking) after the intervention programme. CONCLUSIONS: Our study reinforces the view that different modalities of IPV intervention might lead to different cognitive outcomes after the intervention. Thus, these results may help professionals to develop specific intervention programmes focused on improving cognitive abilities in order to reduce IPV recidivism. PRACTITIONER POINTS: Interventions for batterers' neglected empathic changes after these programmes. Not enough randomized controlled trials for these kinds of interventions. An improvement in the ability to decode emotions after the intervention programme. An improvement in cognitive empathy (perspective taking) after the intervention programme. Different modalities of IPV intervention might lead to different cognitive outcomes after the intervention.

The importance of impulsivity and attention switching deficits in perpetrators convicted for intimate partner violence.

It has been stated that Attention deficit hyperactivity disorder (ADHD) increases the likelihood of risky behavior such as intimate partner violence (IPV), but the cognitive mechanisms that facilitate or underlie these types of behavior remain unexplained. In this regard, several authors have established that impulsivity and inattentive symptoms might affect basic processes such as emotional decoding and set-shifting abilities, which are important processes for emotional and behavioral regulation. Hence, these symptoms entail a reduction in sensitivity to key contextual stimuli. Accordingly, the main aim of this study was to examine the involvement of impulsivity (assessed by self-reports) and attention switching impairments (assessed with the Attention Switching Task; AST), as well as the associations between these cognitive processes in facial emotion decoding (assessed by the eyes test) and cognitive flexibility impairments (measured by the Wisconsin Card Sorting Test, WCST) in a sample of IPV perpetrators (n = 89; mean age = 40) and a control group matched on socio-demographic characteristics (n = 39; mean age = 41). IPV perpetrators had higher trait impulsivity and greater attention switching costs than controls. Moreover, differences were also found between groups in facial expression decoding and WCST performance, with IPV perpetrators showing lower Eyes Test and WCST scores. Mainly, we observed that the ability to recognize facial expressions was poorer when individuals showed high impulsivity in both groups, but this association was only explained by deficits in attention switching in IPV perpetrators. Our research reinforces the importance of impulsivity and inattentive symptoms as targets for specific cognitive rehabilitation interventions designed to prevent the long-term IPV risk of recidivism.

Reduced cardiovascular activation following chronic stress in caregivers of people with anorexia nervosa.

Caring for offspring diagnosed with eating disorders (EDs) puts caregivers under high levels of chronic stress, which have negative consequences for their health. Unfortunately, caregivers have received little attention from mental health professionals. Chronic stress experienced by informal caregivers has been associated with the alteration of body homeostasis, and therefore, the functioning of various physiological systems. This could be the basis of health problems in informal caregivers of people with EDs. The main objective of this study was to analyze physiological response, in terms of heart rate (HR) and heart rate variability (HRV), to an acute laboratory stressor in a sample of informal caregivers of individuals with anorexia nervosa (n = 24) compared to a sample of noncaregivers (n = 26). In addition, the relationship between depressive mood and the aforementioned cardiovascular response parameters was analyzed in the group of caregivers. Caregivers had higher high-frequency (HF) power HRV, and lower HR, low-frequency (LF) power HRV and LF/HF ratio values than noncaregivers, which suggests lower cardiovascular reactivity to the acute stressor than noncaregivers. Moreover, a blunted HR response to stress was associated with high depressive mood scores in caregivers. Hence, it seems that the worse the mood the lower the cardiovascular reactivity to stressful events in this population. Developing and implementing psychotherapeutic interventions focused on stress management would help caregivers to reduce their stress levels and cope more effectively with stressors.

Blunted Cortisol Awakening Response and Poor Self-Perceived Health in Informal Caregivers of People with Eating Disorders.

Caring for offspring diagnosed with eating disorders (EDs) entails being under high chronic stress, with negative consequences for health. However, most previous research has only evaluated self-report measures of health, biological markers being poorly studied. In this regard, the evaluation of the cortisol awakening response (CAR) could add significant information about the biological basis of health disturbances in this population. The main aim of the present study was to compare CAR and self-reported health between informal caregivers (ICs) of people with EDs and non-caregivers. Furthermore, we explored the effect of the nature of the diagnosis, comparing ICs of people with anorexia and bulimia nervosa. ICs had a blunted CAR, and more anxiety and insomnia, and social dysfunction, together with poorer perceived general health than non-caregivers. ICs of people with anorexia nervosa had higher levels of morning cortisol and burden, and more social dysfunction and severe depression than those of people with bulimia nervosa. Our results demonstrate marked health problems in ICs of people with EDs, especially when the care recipient has anorexia nervosa. Copyright © 2016 John Wiley & Sons, Ltd and Eating Disorders Association.

Empathy Impairments in Intimate Partner Violence Perpetrators With Antisocial and Borderline Traits: A Key Factor in the Risk of Recidivism.

Antisocial, borderline, and narcissistic personality traits have been described as characteristics of intimate partner violence (IPV) perpetrators. Furthermore, deficits in cognitive empathy and impairments in emotional decoding processes may at least partially explain conduct disorders and social dysfunction in general. However, previous research has not explored potential associations between empathy deficits and the aforementioned traits or whether they are reflected in recidivism in IPV perpetrators. Accordingly, the main aim of this study was to explore associations between empathy deficits, antisocial, borderline, and narcissistic traits and the risk of recidivism in this population. The sample consisted of 144 IPV perpetrators (mean age = 41 years). High antisocial and borderline personality traits in this sample were associated with a high risk of recidivism, these relationships being moderated by poor empathy skills. Moreover, in IPV perpetrators with both antisocial and borderline personality traits, the risk of recidivism was higher than in those with only one of these traits. In contrast, narcissistic traits were unrelated to the risk of recidivism and impairments in empathy. The results of our study highlight the importance of empathy deficits and may help professionals to develop specific intervention programs focusing on improving empathy skills in antisocial and borderline IPV perpetrators.

Genetic and environmental contributions to the inverse association between specific autistic traits and experience seeking in adults.

Autistic traits are characterized by social and communication problems, restricted, repetitive and stereotyped patterns of behavior, interests and activities. The relation between autistic traits and personality characteristics is largely unknown. This study focused on the relation between five specific autistic traits measured with the abridged version of the Autism Spectrum Quotient ("social problems," "preference for routine," "attentional switching difficulties," "imagination impairments," "fascination for numbers and patterns") and Experience Seeking (ES) in a general population sample of adults, and subsequently investigated the genetic and environmental etiology between these traits. Self-reported data on autistic traits and ES were collected in a population sample (n = 559) of unrelated individuals, and in a population based family sample of twins and siblings (n = 560). Phenotypic, genetic and environmental associations between traits were examined in a bivariate model, accounting for sex and age differences. Phenotypically, ES correlated significantly with "preference for routine" and "imagination impairments" in both samples but was unrelated to the other autistic traits. Genetic analyses in the family sample revealed that the association between ES and "preference for routine" and "imagination impairments" could largely be explained by a shared genetic factor (89% and 70%, respectively). Our analyses demonstrated at a phenotypic and genetic level an inverse relationship between ES and specific autistic traits in adults. ES is associated with risk taking behavior such as substance abuse, antisocial behavior and financial problems. Future research could investigate whether autistic traits, in particular strong routine preference and impaired imagination skills, serve as protective factors for such risky behaviors. © 2015 Wiley Periodicals, Inc.

Cardiovascular reactivity to a marital conflict version of the Trier social stress test in intimate partner violence perpetrators.

Intimate partner violence (IPV) perpetrators have been categorized into two groups based on their heart rate (HR) reactivity to stress following Gottman's studies. Overall, type I perpetrators tend to show autonomic underarousal, whereas type II or reactive perpetrators present a hyper-reactivity in anticipation of stress. In this study, changes in HR, pre-ejection period (PEP), vagal ratio as well as psychological state variables (anxiety and anger) in response to stress were assessed, comparing a group of type II IPV perpetrators (based on violence reports and psychological assessment; n = 17; mean age = 37) with non-violent controls (n = 17; mean age = 35) using modified version of the Trier Social Stress Test. IPV perpetrators had higher HRs and lower vagal ratios than controls, particularly during the recovery period. Moreover, the former presented shorter PEPs than controls. There were no differences between groups in the magnitude of response of the HR, PEP or vagal ratio. High baseline anxiety and anger were associated with an HR increase during the preparation time in IPV perpetrators but not in controls. These findings indicate a different cardiovascular pattern of response to psychosocial stress in IPV perpetrators, especially during recovery. Thus, they contribute to understanding the biological functioning of violence sub-types, supporting the validity of cardiovascular measures as diagnostic indicators for IPV classification.

Prenatal testosterone of progenitors could be involved in the etiology of both anorexia nervosa and autism spectrum disorders of their offspring.

OBJECTIVES: High intrauterine testosterone (T) levels seem to play a role in the development of autism spectrum disorders (ASDs), but their role in anorexia nervosa (AN) is controversial. Parents with masculinized 2D:4D ratios, a marker of the organizational effects of T, may have other relevant biological characteristics, in particular exposing their offspring to high T levels in the prenatal environment. This would increase the likelihood of their offspring developing these disorders. METHODS: The present study examined whether parents of offspring with AN (n=34; mean age= 51) and ASD (n=36; mean age=45) differ from control parents (n=40; mean age=43) in 2D:4D ratio, as well as by salivary T levels and its relationships. RESULTS: Our results revealed that AN and ASD parents (fathers and mothers) have masculinized 2D:4D ratios of the right hand compared to control parents. However, the difference compared to controls was larger in the ASD than the AN group. Furthermore, current salivary T levels were negatively related to the 2D:4D ratio in ASD and AN parents only. CONCLUSIONS: Our data partially support the view of high prenatal masculinization as a potential intermediate phenotype to the development of these disorders in their offspring.

The contribution of brain volume to explain autonomous imbalance during recovery from acute stress in batterers.

AIM: Many authors have suggested that intimate partner violence (IPV) perpetrators present an imbalance between both branches of the autonomous nervous system when coping with acute stress. Concretely, there is a predominance of the sympathetic branches over the parasympathetic ones when recovering from stress. This imbalance can be explained by their tendency toward anger rumination, and more concretely, by their focus on thoughts of revenge during this period. Unfortunately, there is a gap in the scientific literature in terms of using magnetic resonance imaging (MRI) techniques to assess which brain structures would explain this tendency of IPV perpetrators when coping with acute stress. METHOD: The main objective of this study was to assess whether the gray matter volume (GMV) of relevant brain structures, signaled in previous scientific literature, moderates the association between thoughts of revenge and sympathetic activation during the recovery period, based on skin conductance levels (SCL) after being exposed to stress, in a group of IPV perpetrators (n = 58) and non-violent men (n = 61). RESULTS: This study highlighted that the GMV of the left nucleus accumbens, right lobules of the cerebellum, and inferior temporal gyrus in IPV perpetrators moderated the association between thoughts of revenge and SCL during the recovery period. Accordingly, the higher the thoughts of revenge, the higher the sympathetic predominance (or higher SCL levels), especially among IPV perpetrators with the lowest GMV of these brain structures. Nonetheless, those variables were unrelated in the control group. CONCLUSIONS: Our study highlights the involvement of certain brain structures and how they explain the tendency of some IPV perpetrators to ruminate anger or, more precisely, to focus on thoughts of revenge when they recover from acute stress. These results reinforce the need to incorporate neuroimaging techniques during screening processes to properly understand how IPV perpetrators deal with stress, which in turn helps target their needs and design concrete intervention modules.

Executive dysfunction and cortical variations among intimate partner violence perpetrators and the association with sexism.

Malfunctioning in executive functioning has been proposed as a risk factor for intimate partner violence (IPV). This is not only due to its effects on behavioral regulation but also because of its association with other variables such as sexism. Executive dysfunctions have been associated with frontal and prefrontal cortical thickness. Therefore, our first aim was to assess differences in cortical thickness in frontal and prefrontal regions, as well as levels of sexism, between two groups of IPV perpetrators (with and without executive dysfunctions) and a control group of non-violent men. Second, we analyzed whether the cortical thickness in the frontal and prefrontal regions would explain sexism scores. Our results indicate that IPV perpetrators classified as dysexecutive exhibited a lower cortical thickness in the right rostral anterior cingulate superior frontal bilaterally, caudal middle frontal bilaterally, right medial orbitofrontal, right paracentral, and precentral bilaterally when compared with controls. Furthermore, they exhibited higher levels of sexism than the rest of the groups. Most importantly, in the brain structures that distinguished between groups, lower thickness was associated with higher sexism scores. This research emphasizes the need to incorporate neuroimaging techniques to develop accurate IPV profiles or subtypes based on neuropsychological functioning.

The role of intimate partner violence perpetrators' resting state functional connectivity in treatment compliance and recidivism.

To expand the scientific literature on how resting state functional connectivity (rsFC) magnetic resonance imaging (MRI) (or the measurement of the strength of the coactivation of two brain regions over a sustained period of time) can be used to explain treatment compliance and recidivism among intimate partner violence (IPV) perpetrators. Therefore, our first aim was to assess whether men convicted of IPV (n = 53) presented different rsFC patterns from a control group of non-violent (n = 47) men. We also analyzed if the rsFC of IPV perpetrators before staring the intervention program could explain treatment compliance and recidivism one year after the intervention ended. The rsFC was measured by applying a whole brain analysis during a resting period, which lasted 45 min. IPV perpetrators showed higher rsFC in the occipital brain areas compared to controls. Furthermore, there was a positive association between the occipital pole (OP) and temporal lobes (ITG) and a negative association between the occipital (e.g., occipital fusiform gyrus, visual network) and both the parietal lobe regions (e.g., supramarginal gyrus, parietal operculum cortex, lingual gyrus) and the putamen in IPV perpetrators. This pattern was the opposite in the control group. The positive association between many of these occipital regions and the parietal, frontal, and temporal regions explained treatment compliance. Conversely, treatment compliance was also explained by a reduced rsFC between the rostral prefrontal cortex and the frontal gyrus and both the occipital and temporal gyrus, and between the temporal and the occipital and cerebellum areas and the sensorimotor superior networks. Last, the enhanced rsFC between the occipital regions and both the cerebellum and temporal gyrus predicted recidivism. Our results highlight that there are specific rsFC patterns that can distinguish IPV perpetrators from controls. These rsFC patterns could be useful to explain treatment compliance and recidivism among IPV perpetrators.

Cortisol response to stress in caregivers of offspring with autism spectrum disorder is associated with care recipient characteristics.

Providing care for people with autism spectrum disorder (ASD) is particularly stressful and frequently associated with disturbances in the hypothalamic-pituitary-adrenal (HPA) axis of the caregiver. This study examined whether the stress response is modulated by factors such as age of the care recipient and number of years spent by the caregiver in providing care for the ASD individual. Caregivers of children (n = 15), adolescents (n = 12), and adults (n = 11) with ASD were exposed to two episodes of acute psychosocial stressor in a 1 day session. Salivary cortisol samples were obtained before, during, and after the stressor episodes. Psychological characteristics (states of anxiety, anger, and mood) were measured before and after the stressor episodes. The characteristics of the ASD individuals (age, degree of autism, global activity, and level of autonomy) were also registered. A difference in stress response was found when caregivers of ASD children were compared with those of ASD adolescents and adults, ε = 0.25, F(2.24,53.65) = 5.82, p < 0.004; ε = 0.23 and F(2.11,48.43) = 4.88, p < 0.01, respectively. Thus, upon acute-stressor exposure, caregivers of ASD individuals presented a stress response that correlated with the age of the patient (the older the patient, the lower the cortisol response). Additional factors, such as number of years spent providing care and level of autonomy of the recipient, also significantly contributed to the stress response. Together, the results demonstrate that recipient characteristics contribute to the detection of high-risk individuals within a caregiver population.

High testosterone levels and sensitivity to acute stress in perpetrators of domestic violence with low cognitive flexibility and impairments in their emotional decoding process: a preliminary study.

Hormonal and neuropsychological impairment in intimate partner violence (IPV) perpetrators could play a role in domestic violence. For characterizing whether there is a specific psychobiological response to stress, participants who had previously been jailed for IPV and controls were compared for testosterone and cortisol levels, tested for 2D:4D ratio (as an indicator of masculinization), and given several trait questionnaires and neuropsychological tests related to executive functions and theory of mind. After performing the Trier Social Stress Test (TSST), IPV perpetrators experienced decreases in salivary testosterone (T) levels, a moderate worsening of mood, slight anxiety, and a salivary cortisol (C) level increase. Moreover, high basal T was related with high levels of anger and anxiety and worse mood. However, that basal mood does not significantly alter T levels in response to stress. Nonetheless, controls experienced smaller changes in T and larger changes in C and psychological mood. With respect to neuropsychological and cognitive empathic features, IPV perpetrators showed poorer executive performance and emotional recognition than controls. In addition, deficits in both neuropsychological domains were positively associated. Regarding emotional empathy, IPV perpetrators showed higher levels of personal distress than controls. The 2D:4D ratio was lower in IPV perpetrators than in controls. Moreover, only in the former a smaller 2D:4D ratio was related to large increases in T in response to stress and poor emotional recognition. Together with social aspects involved in IPV, differences in psychobiological variables and their relationships could play a relevant role in the onset and perpetuation of violent behavior.

Psychophysiological responses to cooperation: the role of outcome and gender.

Instances of sustained cooperative behaviour in humans can be considered as an adaptive strategy that enhances the probability of reaching a goal. This study investigates psychophysiological responses to cooperation in healthy subjects, while considering outcome and gender as potential moderators of these responses. Salivary cortisol levels (Csal), heart rate (HR), skin conductance level (SCL), nonspecific skin conductance responses (NSRs), and mood states were measured at different points before, during and after a Lego house-building task in undergraduate men (n = 22) and women (n = 20). Once the task was finished, the experimenter informed the participants about the outcome obtained (positive or negative). Cooperation produces an increase in HR, SCL, and NSR responses. When the outcome is positive it produces a gradual diminution in Csal levels, but when the outcome is negative there is a significant increase in Csal levels after the task followed by a progressive decrease. Men with positive outcomes showed a lower area under curve (AUC) in Csal than women with a negative outcome. Men had more NSR responses in all periods other than the rest period. Several mood states are differently affected by the combined effect of outcome and gender. Our laboratory results can be generalized to other situations in which negotiation, mediation, and cooperative strategies are relevant for taking decisions and/or solving problems. The authors wish to thank Dr Tinca Polderman and John Rawlins for the revision of the English text. This study was supported by the Ministry of Business, Research and Science of the Valencia Regional Government (GVPRE/2008/260, GVACOMP/2010/250, and PROMETEO/2011/048) and the Ministry of Science and Education of the Spanish Government (PSI2008-04408/PSIC).

Neuropsychological Performance, Substance Misuse, and Recidivism in Intimate Partner Violence Perpetrators.

Previous research has pointed out the importance of neuropsychological impairments in intimate partner violence (IPV) perpetrators for reoffending/recidivism once treatment ends. However, less is known about whether substance misuse is associated with impairments or deficits, which facilitate recidivism. In this study, we first aimed to assess whether IPV perpetrators with (n = 104) and without (n = 120) substance misuse showed differences in specific neuropsychological variables in comparison with non-violent men (n = 82). Second, we examined whether there were differences in IPV perpetrators' recidivism and whether these differences were explained by neuropsychological performance. Our results revealed that IPV perpetrators with substance misuse showed worse cognitive performance than controls. Furthermore, we also found differences between IPV perpetrators without substance misuse and controls, but only in terms of executive functioning. There were no differences in neuropsychological performance between the two groups of IPV perpetrators, although those with substance misuse presented higher recidivism rates than those without substance misuse. Finally, cognitive flexibility, verbal fluency, and worse attention functioning were related to high recidivism in both groups of IPV perpetrators. This study underlies the importance of performing neuropsychological assessments during the initial stages of intervention programs for IPV perpetrators in order to design coadjutant neuropsychological/cognitive training to address not only the psychological needs (including substance misuse) of IPV perpetrators, but also their neuropsychological needs.

La investigación previa ha puesto de manifiesto la importancia de los déficits neuropsicológicos para la reincidencia en los hombres penados por violencia contra la mujer en las relaciones de pareja (o maltratadores) una vez que han finalizado el tratamiento. Sin embargo, disponemos de un menor conocimiento sobre si el abuso de sustancias se relacionaría con los déficits neuropsicológicos, lo que, a su vez, facilitaría la reincidencia por parte de los maltratadores. Por lo tanto, el primer objetivo de este estudio fue el de analizar si existían diferencias entre un grupo de maltratadores con abuso de sustancias (n = 104) y otro sin consumo de sustancias (n = 120) en comparación con un grupo de hombres no violentos (n = 82). En segundo lugar, examinamos si existían diferencias en la reincidencia entre los grupos de maltratadores y si estas diferencias se explicaban por su funcionamiento neuropsicológico. Nuestros resultados pusieron de manifiesto que los maltratadores con abuso de sustancias mostraron un peor rendimiento cognitivo que los controles. Además, también encontramos diferencias entre el grupo de maltratadores sin abuso de sustancias y los controles, pero solo en las funciones ejecutivas. Del mismo modo, no hubo diferencias en el rendimiento neuropsicológico entre los dos grupos de maltratadores, aunque aquellos con abuso de sustancias presentaron tasas de reincidencia más altas que aquellos sin consumo de sustancias. Finalmente, la flexibilidad cognitiva, la fluidez verbal y el peor funcionamiento de la atención se relacionaron con una alta reincidencia en ambos grupos de maltratadores. Este estudio subraya la importancia de realizar evaluaciones neuropsicológicas durante las etapas iniciales de los programas de intervención para los maltratadores con el fin de diseñar programas neuropsicológicos o de entrenamiento cognitivo para abordar no solo las necesidades psicológicas (incluido el abuso de sustancias) de los maltratadores, sino también sus necesidades neuropsicológicas.

Reactive vs proactive aggression: A differential psychobiological profile? Conclusions derived from a systematic review.

INTRODUCTION: Scholars have established subcategories of aggressive behavior in order to better understand this construct. Specifically, a classification based on motivational underpinnings makes it possible to differentiate between reactive and proactive aggression. Whereas reactive aggression is characterized by emotional lability, which means it is prone to impulsive reactions after provocation, proactive aggression is driven by low emotionality and high levels of instrumentality to obtain benefits. Some authors have conceived these two types as having a dichotomous nature, but others argue against this conceptualization, considering a complementary model more suitable. Hence, neuroscientific research might help to clarify discussions about their nature because biological markers do not present the same biases as psychological instruments. AIM: The main objective of this study was to carry out a systematic review of studies that assess underlying biological markers (e.g., genes, brain, psychophysiological, and hormonal) of reactive and proactive aggression. METHODS: To carry out this review, we followed PRISMA quality criteria for reviews, using five digital databases complemented by hand-searching. RESULTS: The reading of 3993 abstracts led to the final inclusion of 157 papers that met all the inclusion criteria. The studies included allow us to conclude that heritability accounted for approximately 45% of the explained variance in both types of aggression, with 60% shared by both, especially, for overt and physical expression forms, and 10% specific to each type. Regarding allelic risk factors, whereas low functioning variants affecting serotonin transport and monoaminoxidase increased the risk of reactive aggression, high functioning variants were associated with proactive aggression. Furthermore, brain analysis revealed an overlap between the two types of aggression and alterations in the volume of the amygdala and temporal cortex. Moreover, high activation of the medial prefrontal cortex (PFC) facilitated proneness to both types of aggression equally. Whereas stimulation of the right ventrolateral (VLPFC) and dorsolateral (DLPFC) reduced proneness to aggression, inhibition of the left DLPFC increased it. Finally, psychophysiological and hormonal correlates in general did not clearly differentiate between the two types because they were equally related to each type (e.g., low basal cortisol and vagal variability in response to acute stress) CONCLUSIONS: This study reinforces the complementary model of both types of aggression instead of a dichotomous model. Additionally, this review also offers background about several treatments (i.e., pharmacological, non-invasive brain techniques…) to reduce aggression proneness.