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993 result(s) for "Exposure to Violence - psychology"
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Effectiveness of a brief group psychological intervention for women in a post-conflict setting in Pakistan: a single-blind, cluster, randomised controlled trial
Many women are affected by anxiety and depression after armed conflict in low-income and middle-income countries, yet few scalable options for their mental health care exist. We aimed to establish the effectiveness of a brief group psychological intervention for women in a conflict-affected setting in rural Swat, Pakistan. In a single-blind, cluster, randomised, controlled trial, 34 community clusters in two union councils of rural Swat, Pakistan, were randomised using block permutation at a 1:1 ratio to intervention (group intervention with five sessions incorporating behavioural strategies facilitated by non-specialists) or control (enhanced usual care) groups. Researchers responsible for identifying participants, obtaining consent, enrolment, and outcome assessments were masked to allocation. A community cluster was defined as neighbourhood of about 150 households covered by a lady health worker. Women aged 18–60 years who provided written informed consent, resided in the participating cluster catchment areas, scored at least 3 on the General Health Questionnaire-12, and at least 17 on the WHO Disability Assessment Schedule were recruited. The primary outcome, combined anxiety and depression symptoms, was measured 3 months after the intervention with the Hospital Anxiety and Depression Scale (HADS). Modified intention-to-treat analyses were done using mixed models adjusted for covariates and clusters defined a priori. The trial is registered with the Australian New Zealand Clinical Trials Registry, number 12616000037404, and is now closed to new participants. From 34 eligible community clusters, 306 women in the intervention group and 306 women in the enhanced usual care (EUC) group were enrolled between Jan 11, 2016, and Aug 21, 2016, and the results of 288 (94%) of 306 women in the intervention group and 290 (95%) of 306 women in the EUC group were included in the primary endpoint analysis. At 3 months, women in the intervention group had significantly lower mean total scores on the HADS than women in the control group (10·01 [SD 7·54] vs 14·75 [8·11]; adjusted mean difference [AMD] −4·53, 95% CI −7·13 to −1·92; p=0·0007). Individual HADS anxiety scores were also significantly lower in the intervention group than in the control group (5·43 [SD 4·18] vs 8·02 [4·69]; AMD −2·52, 95% CI −4·04 to −1·01), as were depression scores (4·59 [3·87] vs 6·73 [3·91]; AMD −2·04, −3·19 to −0·88). No adverse events were reported in either group. Our group psychological intervention resulted in clinically significant reductions in anxiety and depressive symptoms at 3 months, and might be a feasible and effective option for women with psychological distress in rural post-conflict settings. WHO through a grant from the Office for Foreign Disaster Assistance.
Null Effects of Game Violence, Game Difficulty, and 2D:4D Digit Ratio on Aggressive Behavior
Researchers have suggested that acute exposure to violent video games is a cause of aggressive behavior. We tested this hypothesis by using violent and nonviolent games that were closely matched, collecting a large sample, and using a single outcome. We randomly assigned 275 male undergraduates to play a first-person-shooter game modified to be either violent or less violent and hard or easy. After completing the game-play session, participants were provoked by a confederate and given an opportunity to behave aggressively. Neither game violence nor game difficulty predicted aggressive behavior. Incidentally, we found that 2D:4D digit ratio, thought to index prenatal testosterone exposure, did not predict aggressive behavior. Results do not support acute violent-game exposure and low 2D:4D ratio as causes of aggressive behavior.
Childhood exposure to violence is associated with risk for mental disorders and adult’s weight status: a community-based study in Tunisia
We sought to investigate the relationship between social violence and adult overweight/obesity and the role of common mental disorders (CMD) in mediating this relationship. A cross-sectional study was conducted from January to June 2016 in Tunisia. Participants were selected from randomly selected Primary Health Care Centers. The Arabic version of the Adverse Childhood Experiences-International Questionnaire (ACE-IQ) was used. A total of 2120 participants were included. Women exposed to social ACEs had higher rates of overweight/obesity than men (13.5 versus 9.5%; P = 0.004). For women, statistically significant partial mediation effects of CMD were observed for exposure to community violence (% mediated = 17.7%). For men, partial mediation was found for the exposure to peer violence (% mediated = 12.5%). Our results provide evidence of the independent increase of overweight/obesity after exposure to social ACEs. Efforts to uncover and address underlying trauma in health care settings may increase the effectiveness of obesity interventions.
Effect of Exposure to Gun Violence in Video Games on Children’s Dangerous Behavior With Real Guns
Among resource-rich countries, the United States has the highest rate of child mortality by unintentional firearm use. To test whether children's exposure to violent video games increases dangerous behavior around firearms. This randomized clinical trial was set in a university laboratory and included pairs of children aged 8 to 12 years who knew each other. Of 313 participants who signed up, 250 were tested (2 arrived without partners, 61 did not arrive to participate). Of the 250 children tested, 8 were excluded (2 did not complete the study, 2 had participated in a related study, and 4 were outliers). Each child was paid $25. Data were collected July 1, 2017, to July 31, 2018. In a 3-group randomized design, pairs of children played or watched 1 of 3 versions of the game Minecraft for 20 minutes: (1) violent with guns, (2) violent with swords, or (3) nonviolent. The pairs of children were then placed in a different room and were told they could play with toys and games for 20 minutes. A cabinet in the room contained 2 hidden disabled handguns with counters for trigger pulls. Play sessions were videotaped. Main outcomes were touching a handgun, seconds spent holding a handgun, and number of trigger pulls (including at oneself or the partner). Control variables included sex, age, trait aggressiveness, exposure to violent media, attitudes toward guns, presence of firearms in the home, interest in firearms, and whether the child had taken a firearm safety course. Of 242 participants, 220 children (mean [SD] age, 9.9 [1.4] years; 129 [58.6%] boys) found a gun and were included in analysis. Among the 76 children who played the video game that included gun violence, 47 children (61.8%) touched a handgun. Among the 74 children who played the video game that included sword violence, 42 (56.8%) touched a handgun. Among the 70 children who played the nonviolent video game, 31 (44.3%) touched a handgun. Participants who played a violent version of the game were more likely to shoot at themselves or their partners than those who played a nonviolent game. Other risk factors for dangerous behavior around firearms included self-reported habitual exposure to violent media and trait aggressiveness. Self-reported exposure to violent media was positively associated with total trigger pulls (incidence rate ratio [IRR], 1.40; 95% CI, 1.00-1.98) and trigger pulls at oneself or one's partner (IRR, 1.88; 95% CI, 1.29-2.72). Trait aggression was positively associated with total trigger pulls (IRR, 13.52; 95% CI, 3.14-58.29), trigger pulls at oneself or one's partner (IRR, 25.69; 95% CI, 5.92-111.39), and time spent holding a handgun (IRR, 4.22; 95% CI, 1.62-11.02). One protective factor was having taken a firearm safety training course. Exposure to violent video games increases children's dangerous behavior around firearms. ClinicalTrials.gov identifier NCT03259139.
Central serotonin modulates neural responses to virtual violent actions in emotion regulation networks
Disruptions in the cortico-limbic emotion regulation networks have been linked to depression, anxiety, impulsivity, and aggression. Altered transmission of the central nervous serotonin (5-HT) contributes to dysfunctions in the cognitive control of emotions. To date, studies relating to pharmaco-fMRI challenging of the 5-HT system have focused on emotion processing for facial expressions. We investigated effects of a single-dose selective 5-HT reuptake inhibitor (escitalopram) on emotion regulation during virtual violence. For this purpose, 38 male participants played a violent video game during fMRI scanning. The SSRI reduced neural responses to violent actions in right-hemispheric inferior frontal gyrus and medial prefrontal cortex encompassing the anterior cingulate cortex (ACC), but not to non-violent actions. Within the ACC, the drug effect differentiated areas with high inhibitory 5-HT1A receptor density (subgenual s25) from those with a lower density (pregenual p32, p24). This finding links functional responses during virtual violent actions with 5-HT neurotransmission in emotion regulation networks, underpinning the ecological validity of the 5-HT model in aggressive behavior. Available 5-HT receptor density data suggest that this SSRI effect is only observable when inhibitory and excitatory 5-HT receptors are balanced. The observed early functional changes may impact patient groups receiving SSRI treatment.
Pre- and postnatal exposure to intimate partner violence among South African HIV-infected mothers and infant developmental functioning at 12 months of age
In rural South Africa, pregnant HIV-infected women report high rates of psychological (55%) and physical (20%) intimate partner violence (IPV). IPV increases the risk of infant developmental delays. Such delays may have negative socioemotional and cognitive outcomes throughout the lifespan. This paper assesses the relationship between IPV and infant development in rural South Africa. The present investigation was a cross-sectional add-on follow-up designed retrospectively. A randomly selected sub-sample of mothers from the main randomized controlled trial (n = 72) were asked to participate with their infants at 12 months of age; all women invited agreed to participate. Women were 18.35 ± 5.47 weeks pregnant; demographics, HIV disclosure status, and pre- and postnatal IPV measured via the Conflict Tactics Scale during pregnancy at baseline and 12 months post-partum were assessed. Infant HIV serostatus and developmental functioning at 12 months of age were assessed. Women were a mean age of 29 ± 2 years. One third had completed at least 12 years of education and had a monthly income of ~ US$76. At 12 months post-partum, 6% of infants tested HIV seropositive. Postnatal physical IPV was associated with delays in cognitive and receptive language development p < 0.05, but only in unadjusted analyses. This study identified an association between early IPV exposure and infant cognitive and receptive communication delays. Given the small sample size, findings support replication. Longitudinal studies are needed to confirm temporal order and identify appropriate timing for interventions in HIV-exposed infants.
Differentiating Between Us & Them: Reduced In-Group Bias as a Novel Mechanism Linking Childhood Violence Exposure with Internalizing Psychopathology
Strong in-group bonds, facilitated by implicit favoritism for in-group members (i.e., in-group bias), promote mental health across development. Yet, we know little about how the development of in-group bias is shaped by early-life experiences. Childhood violence exposure is known to alter social information processing biases. Violence exposure may also influence social categorization processes, including in-group biases, in ways that influence risk for psychopathology. We examined associations of childhood violence exposure with psychopathology and behavioral and neural indices of implicit and explicit bias for novel groups in children followed longitudinally across three time points from age 5 to 10 years old (n = 101 at baseline; n = 58 at wave 3). To instantiate in-group and out-group affiliations, youths underwent a minimal group assignment induction procedure, in which they were randomly assigned to one of two groups. Youth were told that members of their assigned group shared common interests (in-group) and members of the other group did not (out-group). In pre-registered analyses, violence exposure was associated with lower implicit in-group bias, which in turn was associated prospectively with higher internalizing symptoms and mediated the longitudinal association between violence exposure and internalizing symptoms. During an fMRI task examining neural responses while classifying in-group and out-group members, violence-exposed children did not exhibit the negative functional coupling between vmPFC and amygdala to in-group vs. out-group members that was observed in children without violence exposure. Reduced implicit in-group bias may represent a novel mechanism linking violence exposure with the development of internalizing symptoms.
Prevalence and Risk Factors of Major Depressive Disorder Among Women at Public Antenatal Clinics From Refugee, Conflict-Affected, and Australian-Born Backgrounds
Pregnancy may increase the risk of depression among women who self-identify as refugees and have resettled in high-income countries. To our knowledge, no large systematic studies among women with refugee backgrounds in the antenatal period have been conducted. To compare the prevalence of major depressive disorder (MDD), trauma exposure, and other psychosocial risk factors among women who identify as refugees, women from the same conflict-affected countries, and women from the host nation and to test whether self-identification as a refugee indicates greater likelihood of prevalence and risk. This cross-sectional study was undertaken in 3 public antenatal clinics in Sydney and Melbourne, Australia, between January 2015 and December 2016. Overall, 1335 women (685 consecutively enrolled from conflict-affected backgrounds and 650 randomly selected from the host nation) participated. Data analysis was undertaken between June and September 2018. One-hour interviews covering mental health, intimate partner violence, and other social measures. World Health Organization measure for intimate partner violence and the Mini-International Neuropsychiatric Interview from the Diagnostic and Statistical Manual of Mental Disorders (Fourth Edition) for MDD. To make a diagnosis, 1 of 2 items relating to being consistently depressed for 2 weeks and 3 further symptoms that cause personal distress or psychosocial dysfunction were endorsed. Overall, 1335 women (84.8% overall response rate), comprising 685 (51.3%) from conflict-affected countries (women self-identifying as refugees: 289 [42.2%]) and 650 (48.7%) from the host nation, participated. The mean (SD) age was 29.7 (5.4) years among women from conflict-affected backgrounds and 29.0 (5.5) years among women born in the host nation. Conflict-affected countries included Iraq (260 [38.0%]), Lebanon (125 [18.2%]), Sri Lanka (71 [10.4%]), and Sudan (66 [9.6%]). Women who identified as refugees reported higher exposure to 2 to 3 (67 [23.2%]) and 4 or more (19 [6.6%]) general traumatic events compared with women from the host nation (103 [15.8%] and 21 [3.2%], respectively). Women who identified as refugees also reported higher exposure to 1 (147 [50.9%]) and 2 or more (97 [33.6%]) refugee-related traumatic events compared with women from the host nation (86 [13.2%] and 20 [3.1%], respectively). Women who identified as refugees reported higher rates of psychological intimate partner violence than women born in the host nation (124 [42.9%] vs 133 [20.5%]; P < .001). Women who identified as refugees were less likely to identify 5 or more supportive family or friends compared with women born in the host nation (36 [12.5%] vs 297 [45.7%]; P < .001). A greater proportion of women who identified as refugees reported experiencing 3 or more financial stressors compared with women born in the host nation (65 [22.5%] vs 41 [6.3%]; P < .001). Women who identified as refugees had the highest prevalence of MDD (94 [32.5%]), followed by women from other conflict-affected backgrounds (78 [19.7%]), and women born in the host nation (94 [14.5%]). Women identifying as refugees reported a higher prevalence of MDD and all the indicators of adversity related to that disorder. Even after risk factors were accounted for, refugee status was associated with risk of MDD. Assessing whether women attending an antenatal clinic self-identify as refugees may offer an important indicator of risk of MDD and a range of associated psychosocial adversities.
Imagery rescripting and eye movement desensitisation and reprocessing for treatment of adults with childhood trauma-related post-traumatic stress disorder: IREM study design
Background Post-traumatic stress disorder (PTSD) that originates from childhood trauma experiences can develop into a chronic condition that has lasting effects on an individual’s functioning and quality of life. While there are evidence-based guidelines for treating adult onset PTSD, treatments for adults with childhood trauma-related PTSD (Ch-PTSD) are varied and subject to ongoing debate. This study will test the effectiveness of two trauma-focused treatments, imagery rescripting (ImRs) and eye movement desensitisation and reprocessing (EMDR) in participants with Ch-PTSD. Both have been found effective in treatment of adult PTSD or mixed onset PTSD and previous research indicates they are well-tolerated treatments. However, we know less about their effectiveness for treating Ch-PTSD or their underlying working mechanisms. Methods IREM is an international multicentre randomised controlled trial involving seven sites across Australia, Germany and the Netherlands. We aim to recruit 142 participants (minimum of n  = 20 per site), who will be randomly assigned to treatment condition. Assessments will be conducted before treatment until 1-year follow-up. Assessments before and after the waitlist will assess change in time only. The primary outcome measure is change in PTSD symptom severity from pre-treatment to 8-weeks post-treatment. Secondary outcome measures include change in severity of depression, anger, trauma-related cognitions, guilt, shame, dissociation and quality of life. Underlying mechanisms of treatment will be assessed on changes in vividness, valence and encapsulated belief of a worst trauma memory. Additional sub-studies will include qualitative investigation of treatment experiences from the participant and therapists’ perspective, changes in memory and the impact of treatment fidelity on outcome measures. Discussion The primary aims of this study are to compare the effectiveness of EMDR and ImRs in treating Ch-PTSD and to investigate the underlying working mechanisms of the two treatments. The large-scale international design will make a significant contribution to our understanding of how these treatments address the needs of individuals with Ch-PTSD and therefore, potentially improve their effectiveness. Trial registration Australian New Zealand Clinical Trials Registry ACTRN12614000750684 . Registered 16 July 2014.