Triarchic Psychopathy Measure Research Articles

Boldness, meanness and disinhibition as predictors of indirect/direct type of aggressive behavior in youth.

Numerous studies show that a high level of psychopathic traits in youth is related to the propensity to use various types and forms of aggression. The presented study focuses on the relations between psychopathy and aggression, both indirect (relational) and direct in this age group. The triarchic model of psychopathy was used, according to which psychopathy is described as a configuration of boldness, meanness and disinhibition. It was assumed that boldness would be a predictor for indirect aggression and disinhibition - for the direct forms of aggressive behaviors. The sample consisted of 200 older adolescents (108 boys and 92 girls), aged 16-19. Two groups were distinguished for comparison: juveniles from youth fostering centers and youth not violating legal norms. For the measurement of the variables the following self-reports were used: Triarchic Psychopathy Measure, Indirect Aggression Scale (Aggressor Version) and Aggression Questionnaire. From among the dimensions of psychopathy, the strongest predictor for both forms of aggression (indirect and direct) was disinhibition. The study also revealed the differences in the intensity of psychopathic traits and aggressive behaviors with reference to gender and institutionalization. However, the hypothesis on the relationship between boldness and indirect aggression was not confirmed. The results showed that disinhibition and meanness can be considered as significant personality risk factors for aggressive behaviors and violence not only in adults but also in adolescents. The study supported also the heterogeneity of the triarchic model of psychopathy itself.

Positive schizotypy and Motor Impulsivity correlate with response aberrations in ventral attention network during inhibitory control

Inhibitory control (IC) aberrations are present in various psychopathologies, including schizophrenia spectrum and personality disorders, especially in association with antisocial or violent behaviour.We investigated behavioural and neural associations between IC and psychopathology-related traits of schizotypy [Oxford-Liverpool Inventory of Feelings and Experiences (O-LIFE)], psychopathy [Triarchic Psychopathy Measure (TriPM)], and impulsivity [Barratt Impulsiveness Scale (BIS-11)], using a novel Go/No-Go Task (GNG) featuring human avatars in 78 healthy adults (25 males, 53 females; mean age = 25.96 years, SD = 9.85) and whole-brain functional magnetic resonance imaging (fMRI) in a separate sample of 22 right-handed healthy individuals (7 males, 15 females; mean age = 24.13 years, SD = 5.40).Behaviourally, O-LIFE Impulsive Nonconformity (impulsive, anti-social, and eccentric behaviour) significantly predicted 16 % of variance in false alarms (FAs). O-LIFE Unusual Experiences (positive schizotypy) and BIS-11 Motor Impulsivity predicted 15 % of d prime (d’) (sensitivity index) for the fastest (400 ms) GNG trials. When examined using fMRI, higher BIS-11 Motor Impulsivity uniquely, and also together with Unusual Experiences, was associated with lower activity in the left lingual gyrus during successful inhibition (correct No-Go over baseline). Additionally, higher Impulsive Nonconformity was associated with lower activity in the caudate nucleus and anterior cingulate during No-Go compared to Go stimuli reactions.Positive schizotypy, motor, and antisocial-schizotypal impulsivity correlate with some common but mostly distinct neural activation patterns during response inhibition in areas within or associated with the ventral attention network.

Hypothalamic-pituitary-adrenal axis responsivity during adolescence in relation to psychopathic personality traits later in life

Psychopathic personality traits have been linked to low physiological arousal, particularly among high risk and forensic samples. A core indicator of physiological arousal is the activity of the hypothalamic-pituitary-adrenal (HPA) axis; however, findings of a link between HPA axis functioning and psychopathic personality traits have been inconsistent. Furthermore, given sex differences in both HPA axis responsivity and psychopathic personality traits, the association may be expected to differ between men and women. The aim of this study was to investigate the association between HPA axis responsivity in mid-adolescence and psychopathic personality traits in early adulthood and determine whether the association was moderated by sex. We examined this link in a general population sample of twins (N = 556). Adolescents participated in a psychosocial stress task during which samples of salivary cortisol were collected (11–15 years) and reported psychopathic personality traits using the Triarchic Psychopathy Measure (19–20 years). Multilevel linear regression models were estimated in which psychopathic personality traits (boldness, meanness and disinhibition), and their interactions with sex, were regressed on HPA axis responsivity. The study was pre-registered on the Open Science Framework (osf.io/gs2a8). Preliminary analyses showed that cortisol levels did not increase significantly during the stressor task but decreased during recovery. Results showed that there was no association between HPA axis responsivity in mid-adolescence and psychopathic personality traits in early adulthood. The associations were not moderated by sex. Findings suggest that HPA axis responsivity in mid-adolescence did not serve as a biological marker for psychopathic personality traits among young adults from the general population.

Triarchic Model of Psychopathy and Intimate Partner Violence: An Empirical Study on the Italian Community.

Intimate partner violence (IPV) is a serious and recurrent phenomenon in many societies with severe physical and psychological consequences. In the present study, we aimed to explore the role of triarchic dimensions of psychopathy (disinhibition, boldness, and meanness) across gender in this occurrence. A questionnaire on inflicted (self) and experienced (partner) IPV and the Triarchic Psychopathy Measure were administered to a sample of 1,149 individuals from the Italian community. In general, self and partner IPV were moderately correlated. Bayesian regression analysis showed that disinhibition was positively correlated to both self and partner IPV (psychological and physical). In addition, boldness was negatively associated with perpetrated psychological IPV. Interactions by gender showed that meanness was positively related to perpetrated IPV in women (psychological and physical), whereas men with disinhibition features inflicted more physical violence than women. A high externalizing tendency (i.e., disinhibition) is therefore an important correlate of both perpetrated and reported IPV; moreover, boldness was associated with less psychological violence in general, whereas the effect of meanness depended on the gender of the individuals involved. Interestingly, the association between IPV and self-reported delinquent activities was low in magnitude (Spearman's Rho around .20) suggesting limited overlap between these two constructs.

Psychopathic Traits in a Swedish Court-Ordered Forensic Sample: Preferential Associations of Boldness, Meanness, and Disinhibition.

The construct validity of the triarchic psychopathy model has yet to be evaluated in the Swedish forensic psychiatric context. We examined associations between the three phenotypic constructs of the triarchic model of psychopathy (i.e., boldness, meanness, disinhibition), self-assessed empathy and anxiety, and clinical variables in 91 individuals undergoing pretrial forensic psychiatric evaluation in Sweden. Participants completed the Triarchic Psychopathy Measure (TriPM) and self-report measures of empathy and anxiety. Clinical variables, including psychiatric diagnoses and criminal behavior, were collected from the forensic psychiatric evaluations (FPE). All three subscales of the TriPM displayed significant and predominantly anticipated correlations with empathy and trait anxiety measures. TriPM Disinhibition was the only subscale with significant associations with the clinical variables collected from the FPEs. The results provide evidence for the reliability and construct validity of the Swedish translation of the TriPM in a pretrial forensic setting.

Dissociating cognitive and affective empathy across psychopathy dimensions: The role of interoception and alexithymia.

This study examined the associations between psychopathy dimensions (triarchic phenotypes and classical factors), empathy domains (cognitive and affective), and interoception (interoceptive attention and accuracy) while accounting for the putative role of alexithymia. A community sample (n = 515) completed an online survey encompassing: Triarchic Psychopathy Measure (boldness, meanness, disinhibition); Levenson Self-Report Psychopathy Scale (primary and secondary psychopathy); Body Perception Questionnaire (interoceptive attention); Interoceptive Accuracy Scale; Toronto Alexithymia Scale. Hierarchical linear regression models were implemented for hypothesis-driven analyses examining the associations between psychopathy, empathy, and interoception while controlling for sex, age, and alexithymia. Exploratory path models were employed to investigate alexithymia and/or cognitive empathy as mediators between interoception and psychopathy. Our results largely confirmed the postulated empathy profiles across psychopathy dimensions, as meanness and primary psychopathy displayed a broad empathy impairment, while disinhibition and secondary psychopathy were only associated with diminished cognitive empathy. Importantly, boldness displayed a unique pattern (enhanced cognitive empathy and reduced affective empathy), further reinforcing its importance within the constellation of psychopathy traits. Contrary to our hypotheses, self-perceived interoceptive attention and accuracy were not associated with either psychopathy dimension after controlling for alexithymia. However, interoceptive accuracy and alexithymia were associated with cognitive empathy, while alexithymia was also positively related to all psychopathy dimensions (as expected), despite the unexpected strong and negative association with boldness. Exploratory analyses suggested significant indirect effects (mediation) between interoceptive accuracy and psychopathy via alexithymia and/or cognitive empathy. These mediating effects must be interpreted with caution and future studies should be designed to formally test this model.

Cognition, prior aggression, and psychopathic traits in relation to impaired multimodal emotion recognition in psychotic spectrum disorders.

Psychopathic traits have been associated with impaired emotion recognition in criminal, clinical and community samples. A recent study however, suggested that cognitive impairment reduced the relationship between psychopathy and emotion recognition. We therefore investigated if reasoning ability and psychomotor speed were impacting emotion recognition in individuals with psychotic spectrum disorders (PSD) with and without a history of aggression, as well as in healthy individuals, more than self-rated psychopathy ratings on the Triarchic Psychopathy Measure (TriPM). Eighty individuals with PSD (schizophrenia, schizoaffective disorder, delusional disorder, other psychoses, psychotic bipolar disorder) and documented history of aggression (PSD+Agg) were compared with 54 individuals with PSD without prior aggression (PSD-Agg) and with 86 healthy individuals on the Emotion Recognition Assessment in Multiple Modalities (ERAM test). Individuals were psychiatrically stable and in remission from possible substance use disorders. Scaled scores on matrix reasoning, averages of dominant hand psychomotor speed and self-rated TriPM scores were obtained. Associations existed between low reasoning ability, low psychomotor speed, patient status and prior aggression with total accuracy on the ERAM test. PSD groups performed worse than the healthy group. Whole group correlations between total and subscale scores of TriPM to ERAM were found, but no associations with TriPM scores within each group or in general linear models when accounting for reasoning ability, psychomotor speed, understanding of emotion words and prior aggression. Self-rated psychopathy was not independently linked to emotion recognition in PSD groups when considering prior aggression, patient status, reasoning ability, psychomotor speed and emotion word understanding.

Associations between the triarchic traits and mental health symptoms: the role of coping styles as mediators.

We investigated relationships between the triarchic model of psychopathy, coping styles, and externalizing and internalizing symptoms, and verified the mediating effect of coping styles. Participants were 957 adults responding to the Triarchic Psychopathy Measure, Inventory of depression and anxiety symptoms expanded version, and Crime and Analogous Behavior Scale. Data were analyzed using four path analyses to test our hypothesis, indicating each triarchic trait is differently associated with psychological symptoms and coping styles. We also observed the preference for some coping styles affecting the association between triarchic traits and psychological symptoms. Our findings suggest that coping styles affect only the associations between boldness*distress and boldness*fear, indicating that specific coping strategies can account for variations in distress and fear linked to boldness.

Psychopathic Traits and Utilitarian Moral Judgment Revisited.

To provide deeper insights into the relationships between psychopathic traits and utilitarian moral judgment, we studied N = 702 adults using three psychopathy scales: (a) the Levenson's Self-report Psychopathy Scale; (b) the Psychopathic Personality Inventory; and (c) the Triarchic Psychopathy Measure; and three measures of utilitarian moral judgment: (a) trolley dilemmas; (b) the Consequences, Norms, and Inaction (CNI) model of moral decision-making; and (c) the Oxford Utilitarianism Scale. When using the traditional approach to moral judgment (i.e., trolley dilemmas, instrumental harm, traditional score from the CNI model), we found that higher levels of psychopathic traits were associated with a higher utilitarian tendency. When using the modeling approach, we found that a higher level of psychopathic traits was related to weaker sensitivity to moral norms and less action averse in morally problematic situations. In addition, we found negative associations between impartial beneficence and all psychopathy scores.

Incremental and interactive relations of triarchic psychopathy measure scales with antisocial and prosocial correlates: A preregistered replication of Gatner et al. (2016).

Meanness (i.e., callousness/unemotionality, antagonism) and disinhibition (e.g., impulsivity, antisocial behavior) are the consensus traits that undergird psychopathy. Significant debate exists regarding a proposed third dimension of boldness or fearless dominance, characterized by particularly high levels of both extraversion and emotional stability. The present study is a preregistered direct replication of the work of Gatner and colleagues (2016) regarding the importance of boldness in psychopathy. Specifically, in a large undergraduate sample (n = 1,015), which more than doubled the original study sample size, we examined whether boldness exhibited curvilinear relations to antisocial and prosocial outcomes, provided incremental predictive utility, and interacted with meanness and disinhibition. Consistent with Gatner and colleagues' findings, incremental, interactive, or curvilinear effects of boldness did not account for more than a small amount of variance in outcomes beyond the main effects of meanness and disinhibition. We discuss both process and results in the context of promoting a culture of reproducibility as well as transparent and open practices in clinical science. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

Exploring the relationship between psychopathy and criminal thinking: utilising the Tri-PM within a forensic sample

PurposeThe Triarchic Psychopathy Measure (Tri-PM) was developed in 2010 as an alternative approach to the assessment of psychopathy. The measure aims to capture psychopathic traits on a 3-factor model, which encompass the characteristics established in previous measures, as well as those evidenced within practise. Though support for the tool in academic research is growing, less is known about the scale’s utility within crime forensic settings. Thus, this study aims to explore the relationship between the Tri-PM psychopathy constructs and criminal cognition within a forensic sample.Design/methodology/approachSeventy-three adult male offenders, convicted for acquisitive or sexual crimes, from a Category B prison within the Northwest of England completed questionnaires measuring their criminal backgrounds, psychopathy traits (Tri-PM; Patrick, 2010) and criminal thinking styles (Psychology Inventory of Criminal Thinking Styles; Walters, 2001).FindingsThe Tri-PM measurement proved to be a successful predictor of most criminal thinking styles. Moreover, the meanness construct was the strongest predictor of proactive thinking styles, whereas the disinhibition construct was the strongest predictor of reactive thinking styles, and the boldness construct was negatively associated with reactive thinking. Comparisons among offender groups also indicated that acquisitive offenders reported higher scores of psychopathy and criminal thinking.Originality/valueThis study offers valuable insight into the proposed relationship between psychopathy and criminal thinking, using a recent addition to the repertoire of psychopathy measurements, the Tri-PM. This study also offers practical implications for those offering treatment within forensic settings, with significant relationships identified between the highly scoring psychopathy constructs and various criminal thinking styles.

Young's early maladaptive schemas versus psychopathic traits in a non-clinical population.

There is now evidence that certain psychopathic personality components have their roots in a dysfunctional family of origin. Looking at this phenomenon from the perspective of Jeffrey E. Young's theory, we can surmise that the early negative experiences of people with psychopathic personality traits may have influenced the formation of specific maladaptive schemas. The purpose of this study is to examine the relationship between Young's early maladaptive schemas and psychopathic personality traits in a non-clinical population. The study involved 150 individuals aged 18 to 45. Eighty-six percent of the study group were women. The Psychopathic Personality Traits Scale - Revised (PPTS-R) and the Triarchic Psychopathy Measure (TriPM), designed to test the intensity of psychopathic traits in the study group, were used. Young's Schema Questionnaire (YSQ-S3-PL) was applied to measure Young's early maladaptive schemas. Statistical analyses revealed significant positive correlations between the severity of psychopathy as measured by the TriPM and the following schemas: Emotional Deprivation, Mistrust/Abuse, Entitlement/Grandiosity, Insufficient Self-Control/Self-Discipline, and Approval Seeking/Recognition Seeking. For the PPTS-R scale, positive correlations were found for thirteen of the eighteen schemas. The strongest correlations across questionnaires were found for the Entitlement/Grandiosity schema. The domain of early maladaptive schemas most strongly associated with psychopathy was Impaired Limits. The Entitlement/Grandiosity, Insufficient Self-Control/Self-Discipline, Mistrust/Abuse, and Emotional Deprivation schemas are all associated with psychopathic personality traits. The strongest correlations are in the Entitlement/Grandiosity schema. The domain of early maladaptive schemas most strongly associated with psychopathy is the Impaired Limits domain.

Associations between the triarchic traits and mental health symptoms: the role of coping styles as mediators.

We investigated relationships between the triarchic model of psychopathy, coping styles, and externalizing and internalizing symptoms, and verified the mediating effect of coping styles. Participants were 957 adults responding to the Triarchic Psychopathy Measure, Inventory of depression and anxiety symptoms expanded version, and Crime and Analogous Behavior Scale. Data were analyzed using four path analyses to test our hypothesis, indicating each triarchic trait is differently associated with psychological symptoms and coping styles. We also observed the preference for some coping styles affecting the association between triarchic traits and psychological symptoms. Our findings suggest that coping styles affect only the associations between boldness*distress and boldness*fear, indicating that specific coping strategies can account for variations in distress and fear linked to boldness.

Psychopathic tendencies are selectively associated with reduced emotional awareness in the context of early adversity.

It is unclear at present whether psychopathic tendencies are associated with lower or higher levels of emotional awareness (EA). Given that psychopathy includes a proficiency for manipulating others, one might expect an elevated ability to identify and use information about others' emotions. On the other hand, empathic deficits in psychopathy could arise from reduced emotional awareness. Further, heterogeneity in psychopathy may also play a role, wherein 'secondary' psychopathy is associated with early adversity and high negative affect, while 'primary' psychopathy is not. In this paper, we tested the relationship between EA and psychopathic tendencies in 177 undergraduate students (40 males) who completed the levels of emotional awareness scale (LEAS), the triarchic psychopathy measure (TPM), the affective (empathy-related) subscales of the interpersonal reactivity index (IRI), and two measures of early adversity: the childhood experiences of care and abuse questionnaire (CECA) and the childhood trauma questionnaire (CTQ). We found that lower LEAS scores were associated with higher TPM and lower IRI empathy scores, but these relationships were primarily present in those with early adversity and high negative affect. This suggests that lower EA may be selectively associated with higher levels of secondary psychopathy, while those with higher levels of primary psychopathy remain capable of higher EA.

Latent variable model of triarchic psychopathy constructs in an incarcerated offender sample: Factor reliability and validity.

The triarchic model of psychopathy posits that three distinct trait dispositions-disinhibition, meanness, and boldness-contribute to the interpersonal, affective, and impulsive-unrestrained features of this condition and is represented to varying degrees in all conceptualizations and measures of psychopathy. Using data for incarcerated males (n = 273) and females (n = 83) from 10 different prisons in Italy, we specified a latent variable model of the triarchic trait constructs in which scale measures of disinhibition, meanness, and boldness composed of items from the following inventories served as indicators: Triarchic Psychopathy Measure, Psychopathic Personality Inventory-Revised, Minnesota Multiphasic Personality Inventory-2 Restructured Form, and NEO Five Factor Inventory. A correlated three-factor solution evidenced adequate model fit, with individual triarchic trait scales loading strongly onto their target factors. The model exhibited comparable fit and factor loadings when specified using data for males only, and its factors showed expected relations with pertinent criterion variables, including measures of normative personality and clinical dysfunction along with staff ratings of prison behavior and release prognosis. Extending prior research with nonclinical participants from the U.S., present study results demonstrate the viability of a latent variable model of the triarchic traits in an incarcerated offender sample from a separate culture (Italy). The significance of this work lies in the potential of the triarchic traits to serve as conceptual-empirical points of reference for integrating findings across studies of psychopathy employing diverse samples and assessment measures. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

Psychopathy and heart rate variability: A new physiological marker for the adaptive features of boldness.

The boldness disposition of the triarchic model of psychopathy is theorized to entail, aside from mal-adaptive proclivities (narcissism, fearless risk-taking), some adaptive features (e.g., immunity to stressful events, high self-esteem, and emotional resilience) that seem to predispose high boldness individuals to an effective emotional regulation in response to environmental demands. The high frequency band of heart rate variability -an index of parasympathetic cardiac vagal activity-is a well-validated physiological index of emotional self-regulation and mental health resilience. The aim of this study was to examine the unique predictive contributions of triarchic dispositions of boldness, meanness, and disinhibition on resting vagally mediated heart rate variability (vmHRV) in a sample of 241 undergraduates (60 men) assessed via the Triarchic Psychopathy Measure (TriPM; Patrick, 2010). A hierarchical regression analysis was conducted on vmHRV in which TriPM Boldness, Meanness, and Disinhibition scores were entered as predictors, along with gender, age, body mass index, mean resting heart rate, and respiratory activity. Results showed that only TriPM Boldness -but not Meanness or Disinhibition-scores significantly predicted vmHRV (positively), thus evidencing that adequate emotional self-regulation is one of the adaptive features encompassed by the boldness disposition. These findings encourage further use of vmHRV as a physiological marker of boldness and contribute to shedding light on the nomological network surrounding the construct of boldness in psychopathy. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

Exploring psychopathy traits on intertemporal decision-making, neurophysiological correlates, and emotions on time estimation in community adults

There are certain characteristics of psychopathy that may be related to changes in intertemporal choices. Specifically, traits such as impulsivity or lack of inhibitory control may be associated with a more pronounced discounting function in intertemporal choices (IC) and, in turn, this function may be based on changes in the basic mechanisms of time estimation (TE). Therefore, this study aimed to examine potential differences in neurophysiological correlates, specifically through N1, P3, and LPP measurements, which may be related to TE and IC, examining their modulation according to psychopathic traits, different emotional conditions, and different decision-making conditions. This experimental study included 67 adult participants (48 women) from the northern region of Portugal, who performed an intertemporal decision-making task and, of those, 19 participants (16 women), with a mean age of 25 years (SD = 5.41) and a mean of 16 years of schooling (SD = 3.37) performed the time estimation task. The instruments/measures applied were MoCA, used as a neurocognitive screening tool; the Triarchic Psychopathy Measure (TriPM), a self-report instrument with 58 items that map the core features of psychopathy along three facets – boldness, meanness, and disinhibition – and considers them continuously distributed among the general population; intertemporal decision-making and time estimation tasks – for the time estimation task, the stimuli consisted of 45 color images extracted from the Nencki Affective Picture System (NAPS). In the TE task, there was an almost significant effect of disinhibition on the values of θ, with higher values on this variable associated with greater values of θ in the unpleasant emotional condition. In the IC task, there were no significant effects of any psychopathy measure on the values of the gains and losses ratios. In addition, the analysis of the neurophysiological correlates of the IC task did not reveal a main effect of the decision-making condition, nor effects of any psychopathy measure on the N1 and P3 amplitudes. The analysis of the neurophysiological correlates of the TE task revealed that higher meanness values are associated with smaller N1 amplitude in the pleasant emotional condition, whereas higher disinhibition values are associated with greater N1 amplitude in the pleasant emotional condition. Still in this task, higher disinhibition values were associated with a smaller LPP amplitude in the unpleasant emotional condition. The increase in the distribution of attention resources towards time and/or the increase in activation states, including those originated by responses to emotional stimuli, may be the main factor that alters the way impulsive individuals and, presumably, individuals with high psychopathy, consider time when making decisions.

Distinct neural signatures of schizotypy and psychopathy during visual word‐nonword recognition

Previous behavioural data indicate lower word‐nonword recognition accuracy in association with a high level of positive schizotypy, psychopathy, or motor impulsivity traits, each with some unique contribution, in the general population. This study aimed to examine the neural underpinnings of these associations using functional magnetic resonance imaging (fMRI) in a volunteer sample. Twenty‐two healthy English‐speaking adults completed self‐report measures of schizotypy (Oxford‐Liverpool Inventory of Feelings and Experiences [O‐LIFE]), psychopathy (Triarchic Psychopathy Measure [TriPM]), and impulsivity (Barratt Impulsiveness Scale [BIS‐11]) and underwent whole‐brain fMRI while performing a lexical decision task (LDT) featuring high and low‐frequency words, real nonwords, and pseudohomophones. Higher positive schizotypy (Unusual Experiences) was associated with lower cerebellum activity during identification of low‐frequency words (over real nonwords). Higher Boldness (fearless dominance) and Meanness (callous aggression) facets of psychopathy were associated with lower striatal and posterior cingulate activity when identifying nonwords over words. Higher Motor Impulsivity was associated with lower activity in the fusiform (bilaterally), inferior frontal (right‐sided), and temporal gyri (bilaterally) across all stimuli‐types over resting baseline. Positive schizotypy, psychopathy, and impulsivity traits influence word‐nonword recognition through distinct neurocognitive mechanisms. Positive schizotypy and psychopathy appear to influence LDT performance through brain areas that play only a supportive (cerebellum) or indirect role in reading‐related skills. The negative association between Motor Impulsivity and activations typically found for phonological processing and automatic word identification indicates a reduced bilateral integration of the meaning and sound of mental word representations, and inability to select the appropriate outputs, in impulsive individuals.

Nonlinearity within dark triad constructs? The case for psychopathy and Machiavellianism

Building on recent findings corroborating nonlinear associations between vulnerable and grandiose narcissism, we explored the possibility of nonlinear relations between the dimensions of psychopathy and Machiavellianism, respectively. We tested the relations within Machiavellianism using the Five Factor Machiavellianism Inventory (FFMI) in a sample of 1315 participants, and within psychopathy using the Triarchic Psychopathy Measure (TriPM) in a sample of 1802 participants. Relations between dimensions were investigated via quadratic and segmented regression analyses. Contrary to narcissism, we did not find substantial nonlinear relations between the dimensions of psychopathy or Machiavellianism. We further explored the configuration of the overall scores for Machiavellianism and psychopathy and found that at high levels, FFMI and TriPM overall scores are driven by their respective antisocial dimensions and less by their adaptive components. Future studies might consider interactive combinations of the construct dimensions, e.g., Emergent Interpersonal Syndromes (EIS).

Dissociation of behavioral and neural responses to provocation during reactive aggression in healthy adults with high versus low externalization

The externalizing spectrum describes a range of heterogeneous personality traits and behavioral patterns, primarily characterized by antisocial behavior, disinhibition, and substance (mis)use. In psychopathology, abnormalities in neural threat, reward responses and the impulse-control system may be responsible for these externalizing symptoms. Within the non-clinical range, mechanisms remain still unclear. In this fMRI-study, 61 healthy participants (31 men) from the higher versus lower range of the non-clinical variation in externalization (31 participants with high externalization) as assessed by the subscales disinhibition and meanness of the Triarchic-Psychopathy-Measure (TriPM) performed a monetary modified Taylor-Aggression-Paradigm (mTAP). This paradigm consisted of a mock competitive-reaction-time-task played against a fictional opponent with preprogrammed win- and lose-trials. In lose-trials, participants were provoked by subtraction of an amount of money between 0 and 90 cents. As a manipulation check, provocation induced a significant rise in behavioral aggression levels linked with an increased activation in the anterior cingulate cortex (ACC). High externalization predicted reduced ACC responses to provocation. However, high externalizing participants did not behave more aggressively than the low externalization group. Additionally, the high externalizing group showed a significantly lower positive affect while no group differences emerged for negative affect. In conclusion, high externalization in the non-clinical range was related to neural alterations in regions involved in affective decision-making as well as to changes in affect but did not lead to higher behavioral aggression levels in response to the mTAP. This is in line with previous findings suggesting that aberrations at multiple levels are essential for developing externalizing disorders.