Violence-exposed Youth Research Articles

Examining the protective effects of social capital and social support on the perpetration of violence among a national sample of adolescents

IntroductionMillions of children witness violence and are victims of violence each year. Previous research suggests that this is a risk factor for perpetrating violence. There is a paucity of studies...

Community Violence Exposure is Associated with Hippocampus–Insula Resting State Functional Connectivity in Urban Youth

Our previous work has linked childhood violence exposure in Black youth to functional changes in the hippocampus, a brain region sensitive to stress. However, different contexts of violence exposure (e.g., community, home, school) may have differential effects on circuitry. We investigated the unique effect of community violence in predicting resting-state functional connectivity (rsFC) in the hippocampus. Fifty-two (26F) violence-exposed Black youth ages 8–15 performed resting-state functional neuroimaging scans while looking at a fixation cross for seven minutes with eyes open. Seed-based analyses were conducted to examine the association between total violence exposure and rsFC of the hippocampus to the whole brain. Follow-up hierarchical regression analysis were performed to specifically investigate community violence. Violence exposure was associated with higher hippocampus rsFC with a core node of the Default Mode Network (i.e., posterior cingulate cortex) and lower hippocampal rsFC with a core node of the Salience Network (i.e., insula). Community violence uniquely associated with lower hippocampus–insula rsFC, after controlling for home and school violence, sex and age. Age-related decreases in hippocampus–insula rsFC were also present in youth with lower violence exposure, but not in youth with higher violence exposure. This is one of the first studies to investigate the unique impact of community violence, above home and school violence, on threat circuitry. Our data suggest functional alterations in the hippocampus in violence-exposed youth, and that violence in the community may be a more salient form of threat exposure compared to other forms of violence experienced by youth.

Childhood exposure to interpersonal violence is associated with greater transdiagnostic integration of psychiatric symptoms.

Childhood exposure to interpersonal violence (IPV) may be linked to distinct manifestations of mental illness, yet the nature of this change remains poorly understood. Network analysis can provide unique insights by contrasting the interrelatedness of symptoms underlying psychopathology across exposed and non-exposed youth, with potential clinical implications for a treatment-resistant population. We anticipated marked differences in symptom associations among IPV-exposed youth, particularly in terms of 'hub' symptoms holding outsized influence over the network, as well as formation and influence of communities of highly interconnected symptoms. Participants from a population-representative sample of youth (n = 4433; ages 11-18 years) completed a comprehensive structured clinical interview assessing mental health symptoms, diagnostic status, and history of violence exposure. Network analytic methods were used to model the pattern of associations between symptoms, quantify differences across diagnosed youth with (IPV+) and without (IPV-) IPV exposure, and identify transdiagnostic 'bridge' symptoms linking multiple disorders. Symptoms organized into six 'disorder' communities (e.g. Intrusive Thoughts/Sensations, Depression, Anxiety), that exhibited considerably greater interconnectivity in IPV+ youth. Five symptoms emerged in IPV+ youth as highly trafficked 'bridges' between symptom communities (11 in IPV- youth). IPV exposure may alter mutually reinforcing symptom co-occurrence in youth, thus contributing to greater psychiatric comorbidity and treatment resistance. The presence of a condensed and unique set of bridge symptoms suggests trauma-enriched nodes which could be therapeutically targeted to improve outcomes in violence-exposed youth.

School Discipline as a Consequence of Violent Victimization in Adolescence: Understanding the Mediating Roles of Head Injury and Behavior.

Pathways from violence to head injury and poor long-term outcomes have been found among numerous populations, however, have not yet been widely examined with youth exposed to violence. Traumatic brain injuries (TBIs) are linked to a range of consequences salient to adolescent development and well-being, such as impulsivity, academic abilities, and emotional processing. This gap in research has led to a missed opportunity to understand the consequences of youth victimization, particularly within the academic setting. The current study examined whether head injury and problem behaviors mediate the relationships between victimization and suspension/expulsion using data from the Pathways to Desistance Study, a multi-site, longitudinal study of serious adolescent offenders age 14-18. A sample of male youth who had witnessed violence (n = 1,094) reported a total score of victimization, number of early behavior problems (i.e., cheating, fighting, etc.), ever having a head injury (32.9%), and number of times suspended (adjusted M = 13.13; SD = 19.31) or expelled (adjusted M = 0.65; SD = 0.99). Structural equation modeling was used to examine direct and indirect pathways from victimization to suspension and expulsion through head injury and behavior. Direct pathways from victimization to school discipline were significant; indirect pathways mediated by only head injury were not significant, but indirect pathways through only problem behavior and through TBI and problem behavior were significant for both expulsion and suspension. Results suggest that youth who have been victimized are at higher risk for both suspension and expulsion and that this risk may be, in part, explained through increased head injury and problem behaviors. TBI screenings/services for violence-exposed youth and trauma-informed school-based services may help to deter trajectories toward suspension and expulsion but should be developed with attention to the influence of racial bias on pathways to school discipline.

Violence exposure and neural systems underlying working memory for emotional stimuli in youth.

Violence exposure during childhood is common and associated with poor cognitive and academic functioning. However, little is known about how violence exposure influences cognitive processes that might contribute to these disparities, such as working memory, or their neural underpinnings, particularly for cognitive processes that occur in emotionally salient contexts. We address this gap in a sample of 54 participants aged 8 to 19 years (50% female), half with exposure to interpersonal violence. Participants completed a delayed match to sample task for emotional faces while undergoing functional magnetic resonance imaging scanning. Violence-exposed youth performed worse than controls on happy and neutral, but not angry, trials. In whole-brain analysis, violence-exposed youth had reduced activation in the left middle frontal gyrus and right intraparietal sulcus during encoding and the left superior temporal sulcus and temporal-parietal junction during retrieval compared to control youth. Reduced activation in the left middle frontal gyrus during encoding and the left superior temporal sulcus during retrieval mediated the association between violence exposure and task performance. Violence exposure influences the frontoparietal network that supports working memory as well as regions involved in facial processing during working memory for emotional stimuli. Reduced neural recruitment in these regions may explain atypical patterns of cognitive processing seen among violence-exposed youth, particularly within emotional contexts.

Narrative Construction of Morality in Adolescence Among Typically Developing and Violence-Exposed Youth

In this article, we explore two different perspectives on what narratives reveal about differences in moral agency construction across contexts. We focus on contexts that vary in violence exposure because such exposure has implications for the way youth develop a sense of moral agency. We elicited narratives about harm-doing from three samples of youth: a North American typical sample, a North American juvenile delinquent sample, and a sample of Colombian displaced youth. The latter two samples have in common a history of significant exposure to violence. Our results show reductions in psychological content (e.g., references to emotions, thoughts, and desires) and increases in reciprocity and vengeful themes among violence-exposed youth, particularly in the context of narrating their own harmful actions. We consider the meaning of these differences from two different perspectives about the meaning of narratives.

Effects of Abuse Within Violence Exposed Youth: Desensitization or Masked Effects?

The current study examined the differences in presentation of psychopathology following varying types of maltreatment, including the witnessing of intimate partner violence. Families recruited from a community mental health center specializing in child trauma were asked to complete questionnaires related to multiple realms of psychosocial functioning. Results indicated that the presence of sexual abuse significantly impacted the development of depressive and anxiety symptoms in children; however, this was not observed following other types of trauma. Analyses also revealed significant mediative relationships with respect to family variables. Although findings supported the original hypothesis, it was proposed that, rather than desensitization, these children might be may be explained by cognitive dissonance. More research needs to examine these findings.

Are Community Violence-Exposed Youth at Risk of Engaging in Delinquent Behavior? A Review and Implications for Residential Treatment Research and Practice

Numerous studies have documented a direct association between children’s exposure to community violence and subsequent delinquent behavior. Regrettably, an understanding of the community violence exposure-delinquent behavior link is incomplete because violence-exposed children rarely engage in delinquency immediately. Rather, there are complex, developmental pathways in which these children experience behavioral problems before subsequently exhibiting delinquent behavior. Despite the importance of understanding the mechanisms that illuminate how children exposed to violence in the community might engage in delinquency, relatively few studies have investigated potential mechanisms. This review proposes four potential mechanisms: depression, anxiety/PTSD, conduct disorder, and aggression. More specifically, we examine how certain internalizing and externalizing behaviors can potentially mediate the relationship between community violence exposure and delinquent behavior. We also discuss implications for residential treatment research and practice.

Mental health service use among high school students exposed to interpersonal violence.

Violence-exposed youth rarely receive mental health services, even though exposure increases risk for academic and psychosocial problems. This study examines the association between violence exposure and mental health service contact. The 4 forms of violence exposure were peer, family, sexual, and witnessing. Data are from 1534 Boston public high school students who participated in a 2008 self-report survey of violence exposure and its correlates. Multivariate logistic regressions estimated associations between each form of violence with service contact, then examined whether associations persisted when controlling for suicidality and self-injurious behaviors. In unadjusted models, violence-exposed students more often reported service contact than their peers. However, in multivariate models, only exposure to family (odds ratio [OR] = 1.69, 95% confidence interval [CI] = 1.23-2.31) and sexual violence (OR = 2.34, 95% CI = 1.29-4.20) were associated with service contact. Associations attenuated when controlling for suicidality and self-injurious behaviors, indicating they were largely explained by self-harm. Sexual violence alone remained associated with mental health service contact in fully adjusted models, but only for girls (OR=3.32, 95% CI=1.30-8.45), suggesting sex-specific pathways. Associations between adolescent violence exposure and mental health service contact vary by forms of exposure. Outreach to a broader set of exposed youth may reduce the impact of violence and its consequences for vulnerable students.

The Sustained Impact of Adolescent Violence Histories on Early Adulthood Outcomes

A history of victimization and violence perpetration are well-established risk factors that hamper positive development in early adulthood, yet their separate and overlapping effects are rarely examined simultaneously, confounding understanding of their relative impacts. This study follows a diverse sample of at-risk adolescents (N = 570) into early adulthood, comparing roles and resources, stress and distress, and maladaptive behaviors for those with a history of no violence, victimization only, perpetration only, and both perpetration and victimization. Results demonstrate four distinctive profiles, although all violence-exposed youth report more problems in the three assessed domains relative to those with no violence histories. Implications for intervention are discussed.

Community violence exposure and adolescents’ school engagement and academic achievement over time.

This study examined the relationships between community violence exposure and two related, but meaningfully distinct, academic outcomes: school engagement and academic achievement (GPA). Psychological symptoms were investigated as mediators of these relationships. One hundred eighteen youth reported on community violence exposure and school engagement twice during adolescence, and both parents and adolescents reported on psychological symptoms. Cumulative GPA was also acquired from participants. A path model and hierarchical multiple regression analyses were used to assess these relationships longitudinally. Earlier community violence exposure inversely predicted later school engagement, but earlier school engagement did not predict later community violence exposure. School engagement mediated the association between community violence exposure and school GPA. Internalizing and externalizing symptoms, but not posttraumatic stress symptoms, mediated the association between community violence and school engagement. When adolescents are exposed to community violence, they may become vulnerable to a cascade of events including psychological symptoms and decreased connectedness to school, which ultimately can lead to overall poor academic achievement. The more proximal, changeable experiences of school connectedness and psychological symptoms offer targets for interventions offsetting long-term adverse academic consequences in violence-exposed youth.

Relationship proximity to victims of witnessed community violence: Associations with adolescent internalizing and externalizing behaviors.

Witnessing community violence has been linked with several adverse outcomes for adolescents, including emotional and behavioral problems. Among youth who have witnessed community violence, proximity to the victim of community violence is one factor that may determine, in part, the nature of adolescents' responses to community violence exposure. The present study examines whether relationship proximity to the victim of community violence is associated with internalizing and externalizing behaviors among a sample of urban and predominantly African American adolescents (N = 501) who have witnessed community violence. In 10th grade, participants reported whether they had witnessed 10 community violence events during the past year, and, if so, whether the victim of the violence was a family member, close friend, acquaintance, or stranger. Witnessed community violence against a family member or close friend was associated with depressive symptoms, and witnessed community violence against known individuals was associated with anxiety symptoms. Witnessing community violence against familiar persons and strangers was linked with aggressive behavior. Gender differences in these associations and implications for assessment and intervention with community violence-exposed youth are discussed.

Predicting Conduct Problems from Community and Family Violence: The Moderating Effects of Hurricane Katrina

Although the devastation was immediately apparent, the effects of Hurricane Katrina on the behavior of youth are just now being revealed. Much post-disaster research targets adjustment of adults, but ample evidence indicates that youth experience a variety of psychological symptoms following a disaster, including depressive symptoms, aggression, and symptoms of posttraumatic stress. The aim of the current study was to determine whether hurricane exposure serves as a risk factor for developing conduct problems among violence-exposed youth. Results indicate that hurricane exposure had differential effects on the relations between conduct problems and community violence versus corporal punishment in the home. Though not statistically significant, there was an unexpected trend for youth with high hurricane exposure to show decreased conduct problems and those with low hurricane exposure to show increased conduct problems as violence exposure increased. Hurricane exposure played the predicted role in the relation between corporal punishment and conduct problems, such that high levels of hurricane exposure predicted increased conduct problems among youth experiencing high levels of corporal punishment, but not among those experiencing low levels of corporal punishment. Implications for future research and practice are discussed.