Self-reported Physical Aggression Research Articles

Anger Rumination Vs. Revenge Planning: Divergent Associations with Aggression and Life Satisfaction

ABSTRACT Rumination about anger experiences prolongs anger arousal and increases the likelihood of aggression. School violence perpetrators have ruminated angrily. Research measures and personal accounts of anger rumination often contain revenge-planning as a subtheme, the relevance of which has received insufficient attention in accounting for aggressive behavior. This study differentially examines anger rumination with and without revenge-thinking, testing for their differential effects in association with aggression and life satisfaction. In a sample of 340 undergraduates, anger rumination (without revenge-thinking) was not significantly associated with self-reported physical or verbal aggression, while revenge-thinking was, controlling for gender and anger disposition. However, anger rumination, but not revenge-thinking, was associated with poorer life satisfaction. Relevant extensions for violence risk assessment, anger treatment, and future research concerning anger rumination are discussed.

Analysis of the interaction between personality dysfunction and traits in the statistical prediction of physical aggression: Results from outpatient and community samples.

The Alternative Model for Personality Disorders (AMPD), included in the Diagnostic and Statistical Manual of Mental Disorders (5th ed.) and the World Health Organization's International Classification of Diseases (11th ed.; ICD-11) are, respectively, hybrid categorical-dimensional and dimensional frameworks for personality disorders (PDs). Both models emphasize personality dysfunction and personality traits. Previous studies investigating the links between the AMPD and ICD-11, and self-reported physical aggression have mostly focused on traits and did not take into account the potential interaction between personality dysfunction and traits. Thus, the aim of this study is to identify dysfunction*trait interactions using regression-based analysis. Outpatients with personality disorder from a specialized public clinic (N = 285) and community participants (N = 995) were recruited to complete self-report questionnaires. Some small-size, albeit significant and clinically/conceptually meaningful personality dysfunction*trait interactions were found to predict physical aggression in both samples. Interaction analyses might further inform, to some degree, about the current discussion pertaining to the potential redundancy between dysfunction and traits, the optimal personality dysfunction structure (in the case of the AMPD), as well as clinical assessment based on AMPD/ICD-11 PD frameworks.

Modification of hostile interpretation bias and self-reported aggression in juvenile delinquents: A randomized controlled trial

Background/ObjectiveThe social information processing model holds that aggressive behavior is closely related to the hostile interpretation of ambiguous social cues, suggesting the possibility that an intervention that reduces hostile interpretations could reduce aggression. This study in Mainland China evaluated the remediating effects of cognitive bias modification for interpretation (CBM-I) on the hostile interpretation bias and self-reported aggressive behaviors of male juvenile delinquents, taking into account initial hostile interpretation bias as a possible moderator of the intervention effect. MethodFifty-six male juvenile delinquents aged 16-18 were recruited and randomly assigned to the CBM-I group (n = 28) or the Waiting-List group (n = 28). Interpretation bias and self-reported aggressive behavior were assessed at pre-test and post-test. ResultsThe positive interpretations of participants in the CBM-I group were significantly increased compared with participants in the Waiting-List group. The intervention effect of CBM-I on self-reported physical aggression was significant only for juvenile delinquents with high pre-test hostile interpretation bias. ConclusionsCBM-I can significantly improve the positive interpretation bias of juvenile delinquents, and reduce the self-reported physical aggression for some male juvenile delinquents. The results have implications for providing low-cost and high-efficiency intervention for juvenile delinquents’ self-reported aggression behavior.

Exposure to Verbally and Physically Aggressive TV: In Search of a Cross-over Effect

ABSTRACT This study examined the contribution of verbally aggressive and physically aggressive TV exposure to self-reported verbal and physical aggression. Verbally aggressive TV exposure was calculated by respondents’ frequency of viewing 60 TV shows found to be popular among college students and coded for their aggressive content. A total of 637 emerging adults were surveyed for the main study. A path analyses using SPSS Amos with verbal and physical aggression as the primary endogenous variables was used to analyze the data. Exposure to physically aggressive TV programming was found to have a direct effect on self-reported verbal and physical aggression while exposure to verbally aggressive programming had an indirect effect via exposure to physically aggressive programming, thus partially supporting a “cross-over effect.” Additionally, verbal aggression was found to be a positive predictor of physical aggression, both in real life and on the screen.

Transactional Associations between Children’s Socioemotional Difficulties and Parental Aggression toward the Child over a Ten-Year Period in a Lower-Income Population

This study examined the transactional effects of parental physical and verbal aggression and children’s externalizing (EP) and internalizing problems (IP) from early school age to adolescence in lower-income community sample using a multi-informant perspective. Mother-child dyads (n = 175) from urban low socioeconomic backgrounds that are part of the Concordia Longitudinal Research Project, a prospective intergenerational study, participated. Children’s EP and IP were assessed by mothers and teachers at ages 6–8, 9–11, and 13–17-years-old (Child Behavior Checklist). Mothers also self-reported physical and verbal aggression toward their child (Conflict Tactics Scales Parent-Child). Results from cross-lagged analyses with mothers’ reports of EP and IP revealed a transactional process with EP and physical aggression, and a child-driven effect with IP and verbal aggression. EP at 6–8-years-old were associated with increased physical aggression at 9–11 years of age, that in turn were associated with increased EP in adolescence. IP at 6–8 years old were associated with increased verbal aggression at 9–11 years. Some effects were identified when using teachers’ reports of socioemotional difficulties, including a transactional process from verbal aggression at 6–8 years old, to increased EP at 9–11 years, to increased physical aggression at 13–17 years. Overall, parent-driven and child-driven effects were present, but results differed across informants and behaviour problem types. These results have important implications for research and intervention that are discussed in light of the developmental psychopathology and transactional models of development.

Sleep quality is associated with aggression in forensic psychiatric patients, independent of general psychopathology

ABSTRACT Several studies found associations between poor sleep quality and aggression in general and (forensic) psychiatric populations. Both poor sleep and aggression have been related previously to general psychopathology, but studies rarely have addressed this possible confounding factor appropriately. The current study aimed to replicate the association between sleep quality and aggression in a forensic psychiatric sample, including adjustment for psychopathology. We used cross-sectional data from an observational study in forensic psychiatric inpatients (n = 166). Poor sleep quality was significantly associated with higher self-reported aggression, independent of general psychopathology. Poor sleep quality accounted for a substantial part of the variance in aggression. This was observed for self-reported physical aggression, verbal aggression, anger, and hostility, all showing relations with poor sleep quality that were not better accounted for by general psychopathology. Poor sleep quality was related to higher clinician-rated hostility as well, however, this association was weak and the explained variance low. These results confirm and substantiate previously found associations between sleep quality and aggression in forensic psychiatric patients. They highlight the importance of targeting sleep problems as part of the treatment of psychiatric patients with disruptive behavior and encourage further research aimed at unraveling the relation between sleep and aggression.

Mean, uncommitted, and aggressive: Divergent associations between triarchic psychopathy, elements of love, and caustic relationship behaviors

Two studies explored how the triarchic dimensions of psychopathy predicted relationship outcomes in nonclinical samples. In Study 1, using a predominantly student sample ( N = 100, 24% men, 76% women), results revealed significant negative associations between meanness and Sternberg’s (1997) components of love (intimacy, passion, and commitment). In Study 2, using a more gender-balanced online community sample ( N = 125, 53% men, 47% women), we replicated results from Study 1 and found additional negative associations between self-reported physical aggression, psychological aggression and love in intimate relationships. Further, multivariate analyses revealed that deficits in love explained incremental variance in intimate partner aggression, over and above the triarchic constructs of meanness and disinhibition. Implications for how dimensions of psychopathy manifest in close intimate relationships are discussed.

Coparenting of fathers in residential substance use treatment

PurposeFew studies have examined coparenting characteristics and experiences of fathers who use substances and are aggressive with their partners. The purpose of this paper is to use quantitative and qualitative measures to increase knowledge of coparenting of fathers with co-occurring substance use disorders and histories of intimate partner violence (IPV) to inform intervention efforts with this population.Design/methodology/approachBaseline interviews were used from 62 fathers in a residential treatment center who participated in a longitudinal research study about interventions for substance-misusing fathers. Coparenting-related themes were identified through qualitatively analyzing transcripts of fathers’ responses to the Articulated Thoughts in Simulated Situations (ATSS) task. Fathers completed the Coparenting Relationship Scale (CRS), Conflict Tactics Scale Revised and the Child Trauma Questionnaire. Correlations were examined to determine if themes generated from the ATSS task were associated with IPV severity or coparenting relationship.FindingsQualitative analysis of transcripts revealed six themes: hostility, dismissiveness, non-confrontational, child-focused, feeling undermined and being active or non-active in the ATSS task. Qualitative themes were not significantly correlated with self-reported coparenting on the CRS except coded dismissive responses were positively associated with self-reported undermining by their coparent. Self-reported physical and psychological aggression were significantly positively associated with self-reported coparent undermining but were not significantly associated with qualitative themes.Originality/valueThis study is the first to use qualitative analysis of responses to coparenting situations to understand ways fathers in substance misuse treatment with histories of IPV think about coparenting to guide interventions.

Does social support moderate the relationship between racial discrimination and aggression among Latinx adolescents? A longitudinal study

IntroductionThis study examined the relationship between racial discrimination by peers and aggression (i.e., self-reported and peer-nominated relational aggression and physical aggression) across one year through the moderation of social support from parents, friends, and teachers. MethodsParticipants were 606 Latinx adolescents from the United States (60% girls; M = 14.36, SD = 0.46). They completed self-report questionnaires on their perceived racial discrimination by peers, and self-reported and peer-nominated relational and physical aggression. Results & conclusionsRacial discrimination by peers was negatively associated with social support from parents, friends, and teachers, as well as positively related to all forms of Time 2 (1 year) self-reported and peer-nominated relational aggression and physical aggression. Social support from parents, friends, and teachers were negatively related to all forms of Time 2 aggressive behaviors. Increases in social support from parents, friends, and teachers weakened the positive association between racial discrimination by peers and Time 2 self-reported and peer-nominated relational aggression, while lower levels of social support strengthened this association. There were no significant moderating effects of social support from parents, social support, and close friends found for Time 2 self-reported and peer-nominated physical aggression. These findings indicate that high social support from parents, friends, and teachers impacts Latinx adolescents reduces the impact of racial discrimination by peers on adolescents' relational aggression.

Early childhood child care and disruptive behavior problems during adolescence: a 17-year population-based propensity score study.

Child-care services during early childhood provide opportunities for social interactions that may facilitate children's learning of acceptable social behaviors. Furthermore, they may reduce exposure to family adversity for some children. The aim of this study was to determine whether intensity of exposure to child-care services prior to age 5years has a beneficial effect on disruptive behavior problems during adolescence, and whether the effect is more pronounced for children from low socioeconomic families. N=1,588 participants from the Québec Longitudinal Study of Child Development were assessed 14 times from 5months to 17years. Intensity of child-care exposure was measured from 5months to 5years of age. Main outcomes were self-reported physical aggression and opposition from age 12 to 17years. Family socioeconomic status (SES) was measured at 5months. Factors explaining differences in child-care use were controlled using propensity score weights (PSW). Children exposed to moderate-intensity child-care services (part-time child-care services before 1½ years and full time afterward) reported lower levels of physical aggression (d=-.11, p=.056) and opposition (d=-.14, p=.029) during adolescence compared to children exposed to low-intensity child-care services. A significant child care by SES interaction (p=.017) for physical aggression indicated that the moderate-intensity child-care effect was specific to children from low SES families (d=-.36, p=.002). No interaction with socioeconomic status was found for opposition. Moderate-intensity child-care services from infancy to school entry may prevent disruptive behavior during adolescence, especially for disadvantaged children.

Genres matter: Video games as predictors of physical aggression among adolescents

Abstract The purpose of this article is to investigate whether competition hypothesis (Anderson and Carnagey, 2009) contributes to the General Aggression Model when video game genre is entered into the relationship between video game use and self-reported physical aggression. A pre-test (n=93) taken randomly from the research sample employed categorized the game genres as violent and/or competitive. 1,170 adolescents (ages 12–18) completed the written survey. Online shooter games and fight’em up games, categorized as both violent and competitive, were positively related to self-reported physical aggression, while simulation games manifested a negative relationship. Video game genres such as strategy, sports, offline shooter, racing, adventure, puzzle, and platform games were not significantly related to physical aggression. The results support the hypothesis that the presence of both competition and violence in games increases the probability of physical aggression. This study shows that (1) video game genres can be used to predict physical aggression in a non-causal way and (2) that there is support for an interaction effect of the competition hypothesis and the violence hypothesis.

The influence of the OPRM1 (A118G) polymorphism on behavioral and neural correlates of aggression in healthy males

Current models of aggression suggest that in addition to personality traits and environmental factors, biological vulnerability associated with genetics substantially impacts aggressive behavior. In a functional imaging study, we investigated the influence of the single nucleotide polymorphism of the mu 1 subtype opioid receptor gene (OPRM1), implicated in sociability, on correlates of trait and state aggression to delineate the function of these influences in aggression. A key aim was further to differentiate different aspects of aggressive reactions – namely, the reaction to provocation and the decision to punish an opponent.59 healthy males performed a modified Taylor Aggression Paradigm during functional magnetic resonance imaging. The implementation of the paradigm allowed for individual assessments of the decision to behave aggressively, the experience of provocation and the ramification of punishment for the participant or the opponent. The influence of variation in the OPRM1 gene was measured by the functional A118G polymorphism.G allele carriers showed lower levels of general aggression and self-reported physical aggression. Additionally, these participants exhibited increased activation in dorsolateral prefrontal, orbitofrontal, anterior cingulate and insular cortices when choosing higher punishments for the opponent. The OPRM1 polymorphism did not influence aggression in reaction to social provocation. Thus, we suggest that this genetic variant affects one's trait aggressiveness rather than actual behavioral reactivity to provocation. Investigating brain regions that are specifically linked to provocation yielded activation in cortico-limbic circuits which might mediate the evaluation of provocation and the experience of anger and thus shed light on neural processes underlying the risk for aggressive behavior.This article is part of the Special Issue entitled ‘Current status of the neurobiology of aggression and impulsivity’.

Aggression modulates neural correlates of hostile intention attribution to laughter in children

The tendency to interpret nonverbal social signals as hostile in intention is associated with aggressive responding, poor social functioning and mental illness, and can already be observed in childhood. To investigate the neural correlates of such hostile attributions of social intention, we performed a functional magnetic imaging study in 10–18 year old children and adolescents. Fifty healthy participants rated videos of laughter, which they were told to imagine as being directed towards them, as friendly versus hostile in social intention. Hostile intention ratings were associated with neural response in the right temporal voice area (TVA). Moreover, self-reported trait physical aggression modulated this relationship in both the right TVA and bilateral lingual gyrus, with stronger associations between hostile intention ratings and neural activation in children with higher trait physical aggression scores. Functional connectivity results showed decreased connectivity between the right TVA and left dorsolateral prefrontal cortex with increasing trait physical aggression for making hostile social intention attributions. We conclude that children's social intention attributions are more strongly related to activation of early face and voice-processing regions with increasing trait physical aggression.

Racial discrimination and relationship functioning among African American couples.

Racial discrimination is a common stressor for African Americans, with negative consequences for mental and physical well-being. It is likely that these effects extend into the family, but little research has examined the association between racial discrimination and couple functioning. This study used dyadic data from 344 rural, predominantly low-income heterosexual African American couples with an early adolescent child to examine associations between self-reported racial discrimination, psychological and physical aggression, and relationship satisfaction and instability. Experiences of discrimination were common among men and women and were negatively associated with relationship functioning. Specifically, men reported higher levels of psychological aggression and relationship instability if they experienced higher levels of racial discrimination, and women reported higher levels of physical aggression if they experienced higher levels of racial discrimination. All results replicated when controlling for financial hardship, indicating unique effects for discrimination. Findings suggest that racial discrimination may be negatively associated with relationship functioning among African Americans and call for further research on the processes underlying these associations and their long-term consequences. (PsycINFO Database Record

Omega-3 supplements reduce self-reported physical aggression in healthy adults

There is emerging evidence that Omega-3 polyunsaturated fatty acids (PUFA) supplements can decrease aggression. However, experimental studies with adults from non-specific populations are scarce. We hypothesized that Omega-3 supplements would decrease self-reported aggression among non-clinical participants. In a double-blind randomized trial, two groups of participants (N = 194) aged 18–45 from the general population followed a 6-weeks treatment with 638mg docosahexaenoic acid (DHA) and 772mg eicosapentaenoic acid (EPA) per day or the equivalent quantity of copra oil (placebo). Self-reported aggressiveness was measured at baseline and after the 6-week treatment period. Findings showed that Omega-3 supplements significantly decreased self-reported aggressiveness at the end of the 6-week period (d = 0.31). In conclusion, this experiment indicates that Omega-3 administration has beneficial effects in reducing aggression among the general population.

Trait Anger, Physical Aggression, and Violent Offending in Antisocial and Borderline Personality Disorders.

Antisocial personality disorder (ASPD) and borderline personality disorder (BPD) are common conditions in forensic settings that present high rates of violence. Personality traits related to the five-factor model personality domains of neuroticism and agreeableness have shown a relationship with physical aggression in nonclinical and general psychiatric samples. The aim of the present investigation was to examine the association of these personality traits with violence and aggression in ASPD and BPD. Results revealed that trait anger/hostility predicted self-reported physical aggression in 47 ASPD and BPD subjects (β = 0.5, p = 0.03) and number of violent convictions in a subsample of the ASPD participants (β = 0.2, p = 0.009). These preliminary results suggest that high anger and hostility are associated with physical aggression in BPD and ASPD. Application of validated, self-report personality measures could provide useful and easily accessible information to supplement clinical risk assessment of violence in these conditions.

The Influence of Aggressiveness on Rape-Myth Acceptance among University Students

The detrimental effects of rape are well established. In order to support victims of rape in reporting sexual assault, the factors which predict rape myths need to be investigated. Aggression has been linked to sexual violence, but little is known about the role of aggressive behaviour in rape-myth acceptance. The present study aimed to investigate whether rape myths could be predicted by verbal aggression, physical aggression, hostility, anger or sex in a sample of 121 participants. A regression analysis found that an individual's sex and self-reported physical aggression significantly predicted rape-myth acceptance.

Links between friends’ physical aggression and adolescents’ physical aggression

Exposure to deviant friends has been found to be a powerful source of influence on children’s and adolescents’ aggressive behavior. However, the contribution of deviant friends may have been overestimated because of a possible non-accounted gene-environment correlation (rGE). In this study, we used a cross-lagged design to test whether friends’ physical aggression at age 10 predicts an increase in participants’ physical aggression from age 10 to age 13 years. Participants were 201 pairs of monozygotic twins who are part of the Quebec Longitudinal Twin Study. We performed two sets of analyses. In the first set of analyses, using twins as singletons, we found that teacher-rated friends’ physical aggression predicted an increase in each twin’s self-reported physical aggression from age 10 to age 13, above and beyond auto-regressive and concurrent links. Second, we used within-pair differences in regard to friends’ physical aggression to predict an increase in within-pair differences in physical aggression, thus accounting for family-wide influences, including a likely rGE at age 10. No significant association was found, however. These results suggest that part of the influence attributed to friends in past studies may have been due to common underlying genetic effects on both physical aggression and association with physically aggressive friends.

Breaking the vicious cycle of media violence use and aggression: A test of intervention effects over 30 months.

Objective: This study examined the sustained efficacy of a media violence intervention in reducing media violence use, normative acceptance of aggression, and aggressive behavior in adolescents. It used an experimental design to evaluate the effects of the intervention over a period of 30 months. Method: N = 627 German 7th and 8th graders were assigned to a 5-week school-based intervention to reduce media violence use or to a no-intervention control group. Media violence use, normative acceptance of aggression, and aggressive behavior were measured 3 months before the intervention (T1), 7 months post intervention (T2), and at 2 follow-ups 18 (T3) and 30 (T4) months after the intervention. This article focuses on the findings from the 2 follow-ups. Results: Controlling for baseline levels and various demographic covariates, media violence use at T2, T3, and T4 and self-reported physical aggression at T3 were significantly lower in the intervention group, and the indirect path from the intervention to T3 aggression via T2 media violence use was significant. Lower T2 media violence use predicted lower T3 normative acceptance of aggression among participants with lower initial aggression. No effects on nonviolent media use and relational aggression were observed. Conclusion: The findings show that a short class-based intervention can produce lasting changes in media violence use that are linked to a decrease in aggression.

Digit ratio (2D:4D), aggression, and dominance in the Hadza and the Datoga of Tanzania.

Digit ratio (2D:4D)-a putative marker of prenatal androgen activity-has been shown to correlate with self-reported physical aggression and dominance behavior, especially in male children and adolescents. This evidence is derived primarily from the study of Western samples. Digit ratios, self-reported aggression, and dominance behavior were collected from men and women in two traditional, small-scale societies, i.e., the Hadza and the Datoga of Tanzania. We found significant differences in physical and verbal aggression, anger, and hostility between the two societies with the Datoga reporting higher scores on all four measures. Moreover, self-reported dominance in the Datoga was higher than in the Hadza. The Datoga showed lower left and right hand 2D:4D ratios than the Hadza. Men reported higher physical and verbal aggression and dominance, and had lower 2D:4D ratios than women. A significant negative association between 2D:4D and dominance was found in Hadza women. We discuss our findings with reference to differences in mating systems between the two small-scale societies and previous findings of Western and other small-scale societies.