Psychopathy, aggression, and the processing of emotional stimuli in non-referred girls and boys

Research shows that individuals with psychopathic traits differ in how they process negative emotional stimuli. However, it is unclear whether these differences are specific to certain types of negative emotional stimulus and whether they are more strongly associated with psychopathic traits or aggression. Further, it is not clear whether or not deficits in emotional processing generalize to females and ethnic minority individuals with psychopathic traits. In this study, we examined the emotional processing of visual stimuli using a dot-probe task in 50 non-referred girls and boys (mean age of 9.30; SD = 2.00). Overall, there was a significant association between proactive aggression and reduced responsiveness to distressing stimuli. In addition, the predicted association between psychopathic traits and reduced responsiveness to distressing stimuli was only found for children high on aggression. Also, the associations among aggression, psychopathic traits, and responsiveness to distressing stimuli did not differ for boys and girls.     

Assessing the forms and functions of aggression using self-report: factor structure and invariance of the Peer Conflict Scale in youths

This study examined the structure of a self-report measure of the forms and functions of aggression in 855 adolescents (582 boys, 266 girls) aged 12 to 19 years recruited from high school, detained, and residential settings. The Peer Conflict Scale (PCS) is a 40-item measure that was developed to improve upon existing measures and provide an efficient, reliable, and valid assessment of four dimensions of aggression (i.e., reactive overt, reactive relational, proactive overt, and proactive relational) in youths. Confirmatory factor analyses showed that a 4-factor model represented a satisfactory solution for the data. The factor structure fit well for both boys and girls and across high school, detained, and residential samples. Internal consistency estimates were good for the 4 factors, and they showed expected associations with externalizing variables (i.e., arrest history, callous-unemotional traits, and delinquency). Reactive and proactive subtypes showed unique associations consistent with previous literature. Implications for the use of the PCS to assess aggression and inform intervention decisions in diverse samples of youths are discussed.     

Self-Reported Psychopathic Traits in Children: Their Stability and Concurrent and Prospective Association with Conduct Problems and Aggression

The current study investigated the 18-month stability of self-reported psychopathic traits measured through the Youth Psychopathic traits Inventory–Child Version (YPI-CV) and their concurrent and prospective associations with conduct problems and aggression in a sample of 9–12 year olds (n = 159, 52% boys) from the community. Self-reported psychopathy scores were moderately to highly stable and traits were positively related to conduct problems both concurrently and at follow-up, the latter even after controlling for initial levels of conduct problems. Higher self-reported psychopathic traits were also related to higher reactive, but particularly proactive aggression at follow-up. Finally, children with persistently high levels of psychopathic traits exhibited higher levels of conduct problems and proactive aggression at follow-up than those with unstable or stable low psychopathic traits.     

Exploring the Cognitive and Emotional Correlates to Proactive and Reactive Aggression in a Sample of Detained Girls

The current study examined the distinction between reactive and proactive aggression in a sample of detained girls (N = 58) aged 12 to 18. This study employed a self-report measure of aggression that was designed explicitly to assess both the forms that aggression takes (i.e., relational and overt), as well as the functions that aggression serves (i.e., reactive and proactive). Reactive aggression was uniquely associated with poorly regulated emotion and anger to perceived provocation, whereas proactive aggression was uniquely associated with callous-unemotional (CU) traits and biased outcome expectations for aggression. While overt aggression appeared to largely account for these associations, relational aggression showed strong and unique associations with CU traits. The current findings highlight the importance of assessing reactive and proactive aggression, as well as both overt and relational aggression, in detained girls.     

Gender Differences in Patterns of Association Between Prosocial Behavior, Personality, and Externalizing Problems

This study examines whether prosocial behavior and personality have independent or overlapping associations with adolescent externalizing problems. A total of 128 female and 103 male early adolescents (M = 13.6 years old) completed personality inventories. Prosocial behavior was assessed by peer nominations (N = 663). Composite aggression and delinquency scores were derived from maternal and self-reports. Path analyses indicated gender differences in patterns of association. For girls, links between prosocial behavior and both aggression and delinquency were fully mediated by agreeableness and partially mediated by conscientiousness. For boys, prosocial behavior, agreeableness, and conscientiousness were independently and negatively associated with aggression and delinquency. The findings suggest that personality and prosocial behavior are uniquely related to boys' behavior problems but cannot be readily disentangled when it comes to girls' behavior problems.     

Behavior problems and peer rejection in preschool boys and girls

The authors tested the hypothesis that deviant behaviors within a preschool peer group would be linked with peer rejection, irrespective of child gender. Seventy-six children, aged 3 to 5 years, participated. Teachers rated children's behavior on the Child Adaptive Behavior Inventory, and children provided sociometric ratings. For a subsample of children (n = 47), observers coded aggressive, noncompliant, and withdrawn behavior using a time-sampling system. For both boys and girls, noncompliance, hyperactivity, and social withdrawal were associated with peer rejection; overt aggression was associated with peer rejection for boys, but not for girls. Analysis revealed that approximately half of the variance in sociometric and teacher ratings of peer rejection was accounted for by aggression and social withdrawal for both boys and girls. The results suggest that the association between behavior problems and peer rejection emerges at a very early age.     

Cognitive competencies and aggressive behavior: A developmental study

A number of studies have demonstrated that increased socially related cognitive skills are associated with decreases in aggressive behavior. However, the link between aggression and intelligence or academic skills is less evident. While some research indicates that poor academic performance is related to aggression, it is unclear which components of intellectual ability and performance are critical to the management of aggressive behaviors. In two independent longitudinal studies of elementary school-age children, the relationship among several aspects of cognitive competence and several aspects of aggressive behavior were examined. The results of the first study showed that aggressive behavior observed in kindergarten children was more closely related to academic performance in the first and second grades than to general cognitive ability (IQ). The results of the second study, a comprehensive three-year investigation of upper elementary school-age children, indicated that teachers' assessments of aggression and parents' ratings of cruelty were consistent over time for boys, but not for girls. The intercorrelations among aggression measures within each of the three years also revealed stable sex differences. Boys identified as aggressive in the classroom were more likely to be perceived as aggressive, cruel, and/or delinquent at home, but for girls, there was little correlation between aggression at school and in the home. The analyses relating measures of cognitive functioning to indices of aggressive behavior made clear the importance of discriminating among various facets of these psychological constructs. IQ had a negligible relationship with aggression and a weak inverse relationship to delinquency. An overall index of cognitive functioning was a somewhat more consistent negative correlate of aggression, cruelty, and delinquency, especially for boys. A similar pattern was found for the correlates of academic performance. Academic disability was strongly related to delinquency in boys, and to a lesser degree to aggression in boys. Of the several cognitively related factors that were explored, Low Need Achievement manifested the strongest and most consistent relationships with the different facets of aggression and antisocial behavior, especially in boys. The implications of these results for psychological interventions in the school are discussed.     

Conceptualizing psychopathic traits from an evolutionary-based perspective: An empirical study in a community sample of boys and girls

Although psychopathy has historically been associated with a lack of emotion, recent research has suggested that psychopathy may represent a tendency to externalize the experience of unpleasant emotions, including shame, which could be seen as an adaptive strategy within an evolutionary framework. However, more empirical research is needed to build on this argument. This study tested a novel evolutionary-based model involving pathways associating the impact of harsh rearing experiences (warmth and safeness experiences and traumatic shameful experiences) with psychopathic traits as well as the indirect effects of external shame and shame coping strategies in this association. This study also tested the invariance of this model across gender. A youth community sample (N = 703; 58.9% girls) completed self-report questionnaires on the impact of harsh rearing experiences, external shame, shame coping strategies, and psychopathic traits. The results suggested that the impact of harsh rearing experiences was directly and indirectly (through external shame and shame coping strategies) associated with psychopathic traits. The model partially explained the endorsement of psychopathic traits in boys and girls, although gender differences were found in some of the pathways. These findings offer support for conceptualizing psychopathic traits as an adaptive strategy to cope with the impact of harsh rearing experiences, opening new perspectives for prevention and treatment.

     

Can a Laboratory Measure of Emotional Processing Enhance the Statistical Prediction of Aggression and Delinquency in Detained Adolescents with Callous-unemotional Traits?

In this cross-sectional study, we investigated whether the combination of the presence of callous-unemotional (CU) traits and emotional deficits to distressing stimuli, assessed by a computerized dot-probe task, enhanced the statistical prediction of aggression and delinquency in a sample of 88 detained and predominantly African-American (68%) adolescents (M age = 15.57; SD = 1.28). Overall, self-reported CU traits were associated with self-report measures of aggression and delinquency, but not with official records of arrests. However, there was an interaction between CU traits and emotional deficits for predicting self-reported aggression, self-reported violent delinquency, and a record of violent arrests. Youth high on CU traits and who showed a deficit in their responses to visual depictions of distress showed the highest levels of aggression and violent delinquency.     

The reliability, stability, and predictive utility of the self-report version of the Antisocial Process Screening Device

The psychometric properties of the self-report version of the Antisocial Processes Screening Device (APSD; Frick & Hare, 2001), a rating scale developed to assess traits associated with the construct of psychopathy in youth, was tested in a sample of 91 non-referred young adolescents with an average age of 13.38 (SD = 1.75) at the initial assessment. The sample was recruited from a large community-wide screening, where youth with conduct problems and youth high on psychopathic traits were over-sampled. The sample was reassessed three times at yearly intervals. The self-report scores on the APSD showed moderate correlations with parent ratings of psychopathic traits, were moderately stable across 1-2 years, and showed significant correlations with measures of antisocial behavior both concurrently and predictively. One major weakness of the self-report ratings was the low internal consistency of the subscales, which were much lower than the internal consistency found on the parent report version of the scale.     

Links Between Antisocial Behavior and Depressed Mood: The Role of Life Events and Attributional Style

Comorbidity between antisocial behavior and depression in adolescence is widely recognized. This paper examines whether links with depressed mood differ among three subtypes of antisocial behavior: oppositionality, physical aggression and delinquency. In addition we examine two possible contributors to these links: negative life events that are dependent upon the individual's actions and depressogenic attributional style. Data are drawn from the G1219 large-scale community twin and sibling sample, and include 2409 questionnaire responses from youths aged between 13 and 19 living in the United Kingdom. Depressed mood was independently associated with both oppositionality and delinquency, but not with physical aggression. Dependent negative life events were strongly implicated in the association between delinquency and depressed mood, whereas depressogenic attributional style was implicated in the associations of both oppositionality and delinquency with depressed mood. Oppositionality remained a significant predictor of depressed mood after accounting for attributional style and life events whereas delinquency did not. The pattern of associations was largely similar in boys and girls. We discuss these results in terms of developmental models of the links between antisocial behavior and depressed mood.     

The relation of psychopathy to concurrent aggression and antisocial behavior in high-risk adolescent girls and boys

The present study examined the concurrent relationship between psychopathy characteristics as measured by the PCL:YV and aggressive and antisocial behavior in a sample of 142 high-risk adolescent girls and boys. The unique relationship between each of three PCL:YV factors (Arrogant and Deceitful Interpersonal Style, Deficient Affective Experience, and Impulsive and Irresponsible Behavioral Style) and outcomes was evaluated to determine which aspects of psychopathy are most crucially linked to aggressive and antisocial behavior in adolescents. Dependent measures were expanded to include both relational and physical forms of aggression to better capture meaningful outcomes for girls and boys. Regression analyses showed that the relationships between psychopathic features and outcomes were equivalent for boys and girls, and that deficits in affect were most consistently associated with aggression. These findings are concordant with the well established finding in developmental research showing that deficits in empathy and affect regulation are associated with aggression.     

Peer ratings of depression,anxiety, and aggression in inpatient and elementary school children: Rating biases and influence of rater's self-reported depression,anxiety, and aggression

Using parallel self-, peer, and teacher rating scales, several rating biases in children's peer ratings of depression, anxiety, and aggression were examined. Participants were 66 inpatient and 133 elementary school children (N = 199, 109 boys, 90 girls; 61% white, 39% black) aged 8 to 12, and their teachers. Results showed significant halo bias in both the children's peer ratings and the teachers' ratings. Children's self-reports on each of the three traits were significantly related to their peer ratings of the same trait, while adjusting for socioeconomic status and the peers' teachers' ratings of the same trait. Children who rated themselves as high on each trait rated their peers significantly higher on the same trait than children who rated themselves as medium or low; and for depression and anxiety, those who rated themselves as medium rated their peers significantly higher on those traits than those who rated themselves as low. For both depression and aggression, children's self-reports on the trait were significantly related to their peer ratings of the same trait, but not significantly related to their peer ratings of different traits. Disagreements between children's and teachers' ratings of the peers on all three traits were significantly related to child self-reports on each trait, indicating a possible distortion in children's peer ratings due to self-report. The implications of the results for both peer and others' assessments are discussed, and further investigation of rating biases in other informants' assessments is encouraged.These data were collected as part of the author's doctoral dissertation submitted to Memphis State University. Appreciation is expressed to Stacey Donegan for assistance with the literature review for an earlier version of this paper presented at the meeting of the Society for Research in Child Development, New Orleans, March 1993.     

Aggressive behavior among girls and boys during middle childhood: predictors and sequelae of trajectory group membership

Using longitudinal data spanning early elementary through middle school, aggression behavior trajectory groups were identified for boys and girls. Early elementary school predictors of trajectory group membership were examined as well as whether trajectory group predicted physical aggression, covert delinquency, and substance use in 9th grade. Semiparametric group modeling identified aggression behavior trajectory groups. We identified four aggression trajectory groups for both genders described as “not involved,” “low,” “moderate,” and “high.” Attention problems, family conflict, and low school commitment and attachment were predictors of membership in higher aggression groups for both boys and girls. Low family involvement and low parental education predicted membership in higher aggression groups for boys; while depression, low‐income status, and having a single parent predicted higher aggression group membership for girls. For both boys and girls, few risk predictors distinguished between the moderate and high aggression trajectories except that low school commitment and having a teen mother were significant predictors of being in the high group for girls, and low parental education and income were significant predictors of being in the high group for boys. Membership in the higher aggression trajectory groups predicted involvement in violent behaviors, covert delinquency, and substance use in 9th grade. Findings suggest that children who display an early trajectory of high levels of aggressive behavior are more likely to continue involvement in later problem behaviors. Second‐grade predictors suggest commonality of risk across genders and provide evidence of modifiable targets for preventive interventions. Aggr. Behav. 32:1–15. 2006. © 2006 Wiley‐Liss, Inc.     

The Indirect Effects of Adolescent Psychopathic Traits on Aggression Through Social-Cognitive Factors

Psychopathic traits have been shown to designate youth who are at-risk for varied forms of aggression. The present study examined the indirect effects of social-cognitive factors (i.e., hostility and general approval of aggression) in the association between psychopathic traits (i.e., callous-unemotional traits, narcissism) and two functions of adolescent aggression (i.e., reactive, proactive). Participants were 209 (178 males, 31 females) adolescents aged 16 to 19 attending a residential program for youth who have dropped out of high school. Using a cross-sectional design, participants completed self-report measures of callous-unemotional traits (i.e., callousness, uncaring, unemotional), narcissism, aggression, hostility, and approval of aggression. Results indicated significant indirect effects of callousness on both functions of aggression through hostility. Similarly, there were significant indirect effects of narcissism on both functions of aggression through hostility. Significant indirect effects were also evident for general approval of aggression in the relations between callous-unemotional traits (both callous and uncaring dimensions) and both functions of aggression, and between narcissism and both functions of aggression. These results suggest the importance of examining social-cognitive processes insofar as they may contribute to the relation between psychopathic traits and aggression in youth and serve as possible targets of intervention.     

Contributions of psychopathic, narcissistic, Machiavellian, and sadistic personality traits to juvenile delinquency

The aim of this study was to assess the relative contributions of psychopathic, narcissistic, Machiavellian, and sadistic traits to delinquent behaviors in adolescents. Participants were 615 high-school students who completed self-report questionnaires. Psychopathic, narcissistic, Machiavellian, and sadistic traits were moderately correlated suggesting they may be overlapping but distinct constructs. Hierarchical multiple regression analyses were conducted to control for other socio-familial or psychopathological risk factors. Psychopathic and sadistic traits were independent predictors of delinquent behaviors in boys only. These findings suggest the importance of studying the role of sadistic traits in juvenile delinquency.     

Behavior Problems and Peer Rejection in Preschool Boys and Girls

The authors tested the hypothesis that deviant behaviors within a preschool peer group would be linked with peer rejection, irrespective of child gender. Seventy-six children, aged 3 to 5 years, participated. Teachers rated children's behavior on the Child Adaptive Behavior Inventory, and children provided sociometric ratings. For a subsample of children (n = 47), observers coded aggressive, noncompliant, and withdrawn behavior using a time-sampling system. For both boys and girls, noncompliance, hyperactivity, and social withdrawal were associated with peer rejection; overt aggression was associated with peer rejection for boys, but not for girls. Analysis revealed that approximately half of the variance in sociometric and teacher ratings of peer rejection was accounted for by aggression and social withdrawal for both boys and girls. The results suggest that the association between behavior problems and peer rejection emerges at a very early age.     

Attachment-Related Mentalization Moderates the Relationship Between Psychopathic Traits and Proactive Aggression in Adolescence

The lack of affective responsiveness to others’ mental states – one of the hallmarks of psychopathy – is thought to give rise to increased interpersonal aggression. Recent models of psychopathy highlight deficits in attachment security that may, in turn, impede the development of relating to others in terms of mental states (mentalization). Here, we aimed to assess whether mentalization linked to attachment relationships may serve as a moderator for the relationship between interpersonal aggression and psychopathic traits in an adolescent community sample. Data from 104 males and females with a mean age of 16.4 years were collected on mentalization capacities using the Reflective Functioning Scale on the Adult Attachment Interview (AAI). Psychopathic traits and aggressive behavior were measured via self-report. Deficits in mentalization were significantly associated with both psychopathic traits and proactive aggression. As predicted, mentalization played a moderating role, such that individuals with increased psychopathic tendencies did not display increased proactive aggression when they had higher mentalizing capacities. Effects of mentalization on reactive aggression were fully accounted for by its shared variance with proactive aggression. Psychopathic traits alone only partially explain aggression in adolescence. Mentalization may serve as a protective factor to prevent the emergence of proactive aggression in spite of psychopathic traits and may provide a crucial target for intervention.     

Psychopathic Traits in Boys With and Without Attention-Deficit/Hyperactivity Disorder: Concurrent and Longitudinal Correlates

To investigate the role of psychopathic traits in a clinical and comparison sample, we obtained dimensional California Child Q-Set (CCQ) personality profiles for 66 preadolescent boys with attention-deficit/hyperactivity disorder (ADHD) and 56 comparison boys during naturalistic summer programs and correlated each boy's CCQ profile with an expert-derived CCQ psychopathy prototype. These scores, representing each boy's degree of similarity to the prototype, were significantly associated with concurrent externalizing diagnoses and symptoms and, with statistical control of these externalizing features, concurrent measures of objectively observed noncompliance, overt and covert antisocial behavior, and peer sociometric nominations indexing peer rejection. Psychopathic traits were not associated with peer acceptance. CCQ psychopathy dimension scores also predicted severity of delinquency at a 5-7-year prospective follow-up, with statistical control of age, baseline externalizing diagnoses and symptoms, and baseline objective observations of antisocial behavior. Predictions held when overt behavioral items from the CCQ, which may have overlapped with the delinquency outcome criterion, were eliminated. Despite these strong effects, a plethora of false positives were evident in the prospective predictions to delinquency status. We discuss research and clinical implications of measuring psychopathic traits in childhood.     

The Role of Relational Aggression in Identifying Aggressive Boys and Girls

Peer perceptions of relational and overt aggression and peer evaluations of social competencies were obtained for 461 boys and 443 girls in second and third grades. In contrast to Crick and Grotpeter (1995), boys obtained higher relational and overt aggression scores than girls, and the relation between both types of aggression and peer evaluations were similar for boys and girls. When controlling for levels of overt aggression, relational aggression made a statistically significant but small contribution to the prediction of both peer-evaluated competencies and teacher ratings of aggression in boys and girls. Analyses treating relational and overt aggression as categorical variables revealed gender differences in the prevalence and corresponding sociometric status of aggressive subtypes. When peer-rated relational aggression status is not considered, 60% of aggressive girls, compared to 7% of aggressive boys, are not identified as aggressive. High levels of overt aggression were more likely to result in peer rejection for girls than for boys. In a subsample of 112 children, peer-rated relational aggression contributed more to the discrimination of teacher-identified aggressive and nonaggressive girls, whereas peer-rated overt aggression contributed more to the discrimination of teacher-identified aggressive and nonaggressive boys.