Theory and research suggest that at least two subgroups of individuals with psychopathicpersonality that can be differentiated based on their levels of anxiety. What we know so far ofthe distinction between these subgroups is based predominantly on relatively small samples ofmales in institutionalized populations. The present study is the first to use a large andrandomly selected sample of the general population to try to identify subgroups of individualswith psychopathic personality separately for males and females (n=2500; 52.6% females;M=22.15; SD=1.38). Latent profile analysis suggested a two-group solution; where bothsubgroups were high on psychopathic traits, but low respectively high on a measure ofanxiety. The identified subgroups differed across theoretically and empirically relevantconstructs in that the high anxious group reported significantly more maltreatment history,aggression, symptoms of ADHD and post-traumatic stress, and treatment involvement.Generally, the differences between the high anxious and the low anxious subgroups were thesame for males and females, but an important difference was that the female high anxioussubgroup reported being significantly more involved in treatment. In conclusion, the gainedsubgroups are in several ways, but not in all, in line with theories of primary and secondary psychopathy.

Callous-Unemotional (CU) traits are characterized by limited empathy, lack of guilt or remorse, and callous use of others. They are a risk factor for adult psychopathy, especially when comorbid with conduct problems. Thus, efforts to identify risk factors and consequences of CU traits have been prominent. One construct that may act as both a risk factor for and consequence of CU traits among youth is anxiety. While the most consistent finding is in this literature is a negative relation between CU traits and anxiety, findings have been mixed. The present study examined bidirectional relations between three subtypes of anxiety (i.e. physiological anxiety, fear and concentration problems, and worry and oversensitivity), CU traits, and conduct problems over six months among a sample of primarily African American middle school students. Results showed that CU traits at Time 1 were not associated with changes in physiological anxiety, fear and concentration problems, or worry and oversensitivity at Time 2. Similarly, physiological anxiety, fear and concentration problems, and worry and oversensitivity at Time 1 were not associated with increased CU traits at Time 2. Further, no longitudinal relations were found between CU traits and conduct problems. The six-month timeframe may have been too short to see changes in anxiety and CU traits given their stability. The models tested also did not take into account the impact of factors such as distress and trauma which may influence bidirectional relations between CU traits and anxiety.

Thesis (M.A. ( Clinical Psychology)) -- University of Limpopo, 2013 / This study investigated the relationship between the ‘dark triad’ personality traits and risky sexual behaviour (sociosexuality), and the effect of gender on the relationship. Participants consisted of two hundred and twenty-two (222) University of Limpopo students. Correlation analysis results indicate that, among males, primary psychopathy is positively associated with overall sociosexuality and secondary psychopathy is negatively associated with the behavioural component of sociosexualiy. Primary, secondary and overall psychopathy was positively related to risky sexual behaviour (sociosexuality). However, Machiavellianism, narcissism and overall psychopathy were not related to all dimensions of sociosexuality. Regression analysis results revealed that very few ‘dark triad’ personality traits have the capacity to predict risky sexual behaviour (sociosexuality). High risk socio-sexual behavioural features were predicted by the ‘dark triad’ personality traits mostly among females than among males. There were comparatively more factors associated with risky sexual behaviour among females than males in this sample. Generally, the ‘dark triad’ personality traits varied in relating with features of risky sexual behaviour. The nature of the relationship of ‘dark triad’ personality traits depends on the particular type of risky sexual behaviour. This is contrary to previous empirical findings that suggest that, when measured in a normal sample, correlates of the ‘dark triad’ personality traits will be the same. Recommendations were made on the basis of the results. Key words: ‘dark triad’, narcissism, psychopathy, Machiavellianism, sociosexuality.

The purpose of this study was to answer questions about affect intensity and self-perceived arousal differences in aberrant self-promoters (ASPs) and in individuals high and low in affect intensity (AI). Participants in the study completed a task asking them to respond as quickly and accurately as possible to letter strings presented for 200ms on a computer screen. They completed the task once with letter strings that formed words with an emotional valance and a second time with neutral-valence words. After each task, participants made self-reports of Energy and Tense dimensions of arousal as measured by the Activation-Deactivation Adjective Checklist. As first formulated, the study examined 4 groups of n̲ = 30 (ASPs, non-ASP controls, high-AIs, and low-AIs). Results showed that, as hypothesized, ASPs scored significantly lower than high-AIs on the Affect Intensity Measure (AIM). Other hypotheses were not supported by analyses of the original four groups. However, because about 1/3 of the ASPs exhibited high AIM scores, ASPs were divided into primary and secondary types: (a) those who scored low and (b) those who scored high on the AIM. Subsequent post hoc analyses, based on the hypotheses that had not been supported initially, were conducted on five groups of n̲ = 7. The study found that low-AI ASPs reported significantly lower arousability levels than high-AIs. Results also showed that controls, high-AIs, and low-AIs all reacted significantly more slowly to emotional words than to neutral words. Low-AI ASPs failed to demonstrate this response-time slowing, indicating that, like psychopaths, ASPs may process positive, negative, and neutral stimuli similarly. Additional results indicated that low-AI ASPs decreased both energetic and tension arousal levels after the emotional word task, compared to the neutral word task, whereas high-AIs reported corresponding increases in these types of arousal. These findings support Larsen and Diener's (1987) theory regarding arousal differences in high- and low-AIs. Implications of these findings are discussed in terms of a weak Behavioral Inhibition System (Gray, 1987). / Ph. D.

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The current study examined the effects of personality traits, psychopathy, and narcissism in the context of voluntary false confessions. The administration of various self-report measures in a sample of university students (N= 485) to assess personality traits, psychopathy, narcissism, and self-reported likelihood of voluntary falsely confessing enabled quantitative analysis of the interaction among these essential parameters. Narcissism and openness to experience accounted for 14% of the total variance in the likelihood of the voluntary false confessions in the male sample. Whilst narcissism and psychopathy accounted for 11% of the total variance in the female sample. These findings indicate that narcissism, psychopathy, and openness to experience are psychological factors that may have an impact on the likelihood of an individual confessing to a crime they did not commit, outside of the forensic settings.

The purpose of this systematic review was to characterize further the structural differences in the prefrontal cortex, limbic and paralimbic regions and amygdala alone in psychopaths. Psychopathy is a multifaceted personality disorder characterized by interpersonal and affective traits like lack of empathy, guilt or remorse, shallow affect, and carelessness, as well as behavioral traits such as impulsivity, and poor behavioral control. In recent years, the interest in the neuroanatomical differences in psychopaths has grown. This review aims to understand the prefrontal cortex, limbic and paralimbic areas, and how these regions differ between psychopathic patients and healthy controls. By systematically screening articles that used magnetic resonance imaging (MRI) and voxel based morphometry (VBM) the studies in this review examined people with psychopathic traits. To assess for psychopathy, the most used assessment tool, the Psychopathy Checklist-Revised (PCL-R) was used. Results show that the higher the PCL-R scores of the offenders, the less gray matter volume was found in the superior parts of the prefrontal cortex, limbic and paralimbic areas. Additionally, amygdala deficits in individuals with psychopathy were found. This systematic review may benefit in the way that if we increase our understanding of psychopathy and pave the way forthe creation of effective psychopathic treatments it could prevent future acts of violence. The link between a structural brain anomaly and psychopathy may have a profound clinical, legal, and scientific impact. A psychopathy diagnosis may serve as a precursor to severe societal violence.

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Prior research substantiates a relationship between psychopathy and schizophrenia-spectrum disorders, which has begun to elucidate why some individuals with schizophrenia are violent. Unfortunately, this relationship has been limited to self-report. To objectively corroborate this finding, undergraduate students were recruited from an online screening administration of the Schizotypal Personality Questionnaire. This resulted in 56 participants (52% male) with a mean age of 20.37 (SD = 4.74) and a wide range of schizotypy scores who participated in the experiment. Following completion of self-report measures, participants viewed 15 pictures (five neutral, five threatening, and five of others in distress) from the International Affective Pictures System while electrodermal activity was recorded from one palm. As expected, all participants exhibited increased peak skin conductance (SC) to both threat and distress pictures compared to neutral pictures; however; no difference was found between threat and distress pictures. Although the self-report relationship was replicated, neither total psychopathy nor total schizotypy were related to any SC variable. Therefore, it does not appear that increased schizotypy was related to a differential SC response to emotional pictures in our sample, even after testing for the potential moderating influence of anxiety and the Self-Centered Impulsivity factor of psychopathy. Total schizotypy was, however, significantly and positively related to the Personality Assessment Inventory Aggression scale (including the subscales of Aggressive Attitude and Physical Aggression) and the total score on the Beck’s Anxiety Inventory. Overall findings suggest that despite presence of the comorbidity in this subclinical population, subthreshold levels of both constructs do not relate to a reduced SC response to affective pictures as is seen in clinical psychopathy

Psychopathy research continues to study the adaptability of psychopathic characteristics and differentiate between functional and dysfunctional features. The current study identified latent profiles in emerging adults and compared them across behavioral/cognitive correlates, functional outcomes, aggression types, and also examined gender differences. Results demonstrated that men scored higher across cold-heartedness and fearless dominance profiles, but not self-centered impulsivity. The low psychopathy group had lower proactive aggression than the high psychopathy group; no other differences were observed. Additionally, men and women in the high psychopathy group did not significantly differ regarding experienced outcomes. Lastly, higher psychopathy was not associated with higher proactive aggression when functioning was high, whereas it was associated when functioning was low; no other interactions were observed. Continuing to research how functional and dysfunctional characteristics differ between men and women and detecting these characteristics early to provide intervention could help ameliorate maladaptive traits, which could lead to better outcomes.