Neuropsychology of the aggressive psychopath: An integrative review

Neuropsychological studies of aggressive psychopaths have revealed characteristic deficits in skills that require verbal mediation, conceptual integration, and the abilities to anticipate consequences of actions and to use feedback from behavior to modify maladaptive response patterns. Formulations of this impairment pattern in terms of frontal lobe and left hemisphere dysfunction are reviewed. It is proposed that the aggressive psychopath suffers from an inability to form a self-referential conceptual classification system for behavioral control and that this predisposes to behavioral disinhibition in situations of stress and interpersonal ambiguity. Finally, implications of neuropsychological studies of aggressive psychopathy for the study of personality and psychopathology are discussed.     

Behavioural coherence in group robbery: a circumplex model of offender and victim interactions

The behaviour of offenders and victims in 116 cases of group robbery (61 commercial, 55 personal) was examined. Four interpersonal themes were evident: dominance, submission, co‐operation and hostility. These themes are governed by the principles of complementarity such that offender dominance elicits victim submission (reciprocity) and vice versa, while co‐operative offenders tend to elicit victim co‐operation (correspondence). Hostile offences were hypothesised as eliciting hostility in victims, but few victims in the sample demonstrated active resistance. The existence of behavioural themes suggests that offenders within the same group behave in a homogenous fashion, which is explained by reference to group norms and processes of modelling. Further, differences in interpersonal themes were evident between commercial and personal robberies. Commercial robberies tend to involve greater levels of co‐operation than personal robberies, while personal robberies involve more hostility than commercial robberies. This is discussed in terms of situational and motivational elements of the robberies. Aggr. Behav. 32:330–342, 2006. © 2006 Wiley‐Liss, Inc.     

Electrophysiological correlates of rapid auditory and linguistic processing in adolescents with specific language impairment

Brief tonal stimuli and spoken sentences were utilized to examine whether adolescents (aged 14;3-18;1) with specific language impairments (SLI) exhibit atypical neural activity for rapid auditory processing of non-linguistic stimuli and linguistic processing of verb-agreement and semantic constraints. Further, we examined whether the behavioral and electrophysiological indices for rapid auditory processing were correlated with those for linguistic processing. Fifteen adolescents with SLI and 15 adolescents with normal language met strict criteria for displaying consistent diagnoses from kindergarten through the eighth grade. The findings provide evidence that auditory processing for non-linguistic stimuli is atypical in a significant number of adolescents with SLI compared to peers with normal language and indicate that reduced efficiency in auditory processing in SLI is more vulnerable to rapid rates (200ms ISI) of stimuli presentation (indexed by reduced accuracy, a tendency for longer RTs, reduced N100 over right anterior sites, and reduced amplitude P300). Many adolescents with SLI displayed reduced behavioral accuracy for detecting verb-agreement violations and semantic anomalies, along with less robust P600s elicited by verb-agreement violations. The results indicate that ERPs elicited by morphosyntactic aspects of language processing are atypical in many adolescents with SLI. Additionally, correlational analyses between behavioral and electrophysiological indices of processing non-linguistic stimuli and verb-agreement violations suggest that the integrity of neural functions for auditory processing may only account for a small proportion of the variance in morphosyntactic processing in some adolescents.     

Comparison of non-suicidal self-injurious behavior and suicide attempts in patients admitted to a psychiatric crisis unit

The aim of the current study was to examine differences in personality, coping skills, and select psychopathology symptoms in psychiatric patients with and without non-suicidal self-injury and/or suicide attempts. We collected data in a sample of 128 psychiatric patients by means of self-report questionnaires measuring self-harm, psychological symptoms, personality and coping skills. Results support a continuum of self-harm such that patients with both non-suicidal self-injury and suicide attempts exhibit significantly greater levels of psychopathology and lower levels of adaptive personality traits and coping skills. The findings point to the clinical importance of making a distinction between non-suicidal self-injury and suicide attempts, and offers additional variables to consider outside of intent when appraising suicide risk.     

Personality prototypes in individuals with compulsive buying based on the Big Five Model

Personality prototypes based on the Big Five factor model were investigated in a treatment-seeking sample of 68 individuals with compulsive buying (CB). Cluster analysis of the NEO Five-Factor Inventory (NEO-FFI) scales yielded two distinct personality clusters. Participants in cluster II scored significantly higher than those in cluster I on neuroticism and lower on the other four personality traits. Subjects in cluster II showed higher severity of CB, lower degree of control over CB symptoms, and were more anxious, interpersonally sensitive and impulsive. Furthermore, cluster II was characterized by higher rates of comorbid anxiety disorders, and cluster B personality disorders. The two personality prototypes did not differ with respect to obsessive-compulsive features. Finally and of considerable clinical significance, participants in cluster II reported lower remission rates after undergoing cognitive-behavioral therapy. Implications of the results for treatment are discussed.     

Boundary maintenance and capital punishment: A sociological perspective

Capital punishment represents a sociolegal dilemma in the United States. While there is seemingly popular support in the country for the death penalty, a clear discriminatory bias exists challenging the foundation of American justice–that of fair treatment before the law. A review of sentencing practices and executions indicates major regional (south/non-south) differences regarding the proportion of executions in terms of both numbers and race. This social process is explained in terms of societal reaction/boundary maintenance model. One means of avoiding these regional biases and to ensure a more objective adjudication process would be to make capital crimes a federal offense.     

Non-Suicidal Self-Injury and Adolescents Attachment with Peers and Mother: The Mediating Role of Identity Synthesis and Confusion

Non-suicidal self-injury (NSSI) is highly prevalent in adolescents. Secure attachment with family and peers can reduce vulnerability to NSSI and can optimize the outcomes of developmental challenges such as identity formation. Problems experienced in these developmental processes and contexts can increase vulnerability to NSSI. Hence, the present study examined associations between attachment with mother and peers, identity formation, and NSSI, using self-report questionnaires in 528 high school students (Mean age = 15.0 years, SD = 1.84, 11–19 years, 50.4 % females). The lifetime prevalence of NSSI was found to be 14.2 %. Mediation analyses indicated that peer trust had a significant negative indirect effect on NSSI via identity synthesis and confusion. The positive association between peer alienation and NSSI was partially mediated by a lack of identity synthesis. Further, the pathways from maternal trust and alienation to NSSI were fully mediated by both identity confusion and synthesis. Clinical implications and suggestions for future research are discussed.