Psychopathy Checklist-Revised Scores Research Articles

Social preferences and psychopathy in a sample of male prisoners—a pilot study

Social decisions are influenced by a person’s social preferences. High psychopathy is defined by antisocial behaviour, but the relationship between psychopathy and social preferences remains unclear. In this study, we used a battery of economic games to study social decision-making and social preferences in relation to psychopathy in a sample of 35 male prison inmates, who were arrested for sexual and severe violent offenses (mean age = 39 years). We found no evidence for a relationship between social preferences (measured with the Dictator and Ultimatum Games, Social Value Orientation, and one-shot 2 × 2 games) and psychopathy (measured by the overall Hare Psychopathy Checklist-Revised score and both factors). These results are surprising but also difficult to interpret due to the small sample size. Our results contribute to the ongoing debate about psychopathy and social decision-making by providing crucial data that can be combined with future datasets to reach large sample sizes that can provide a more nuanced understanding about the relationship between psychopathy and social preferences.

Therapeutic and risk relevance of psychopathy and general criminal attitude change in an institutional sexual offense treatment program.

We examined the interrelationships between psychopathy, changes in general criminal attitudes, and community recidivism in a sample of 212 men who attended an institutional sexual offense treatment program (SOTP) and were followed for an average of 12.73years post-release. The men completed a self-report measure of general criminal attitudes, the Criminal Sentiments Scale, as part of routine SOTP service delivery, Psychopathy Checklist-Revised (PCL-R) ratings were completed via file review, and recidivism data were obtained from official criminal records. Criminal attitude endorsement and criminal attitude change had clinically meaningful, but differential, associations with the antisocial and interpersonal features of psychopathy. Further, positive changes in criminal attitudes-particularly tolerance of law violations (i.e., rationalizations for criminal behavior)-were significantly predictive of reductions in community violent and general recidivism after controlling for PCL-R score. Results demonstrate that general criminal attitude change has risk relevance in the treatment of high psychopathy persons with sexual offense histories.

Hypothalamic subunit volumes and relations to violence and psychopathy in male offenders with or without a psychotic disorder.

The hypothalamus is key to body homeostasis, including regulating cortisol, testosterone, vasopressin, and oxytocin hormones, modulating aggressive behavior. Animal studies have linked the morphology and function of the hypothalamus to aggression and affiliation, with a subregional pattern reflecting the functional division between the hypothalamic nuclei. We explored the relationship between hypothalamic subunit volumes in violent offenders with (PSY-V) and without (NPV) a psychotic disorder, and the association with psychopathy traits. 3T MRI scans (n = 628, all male 18-70years) were obtained from PSY-V, n = 38, NPV, n = 20, non-violent psychosis patients (PSY-NV), n = 134, and healthy controls (HC), n = 436. The total hypothalamus volume and its elevennuclei were delineated into five subunits using Freesurfer v7.3. Psychopathy traits were assessed with Psychopathy Checklist-revised (PCL-R). ANCOVAs and linear regressions were used to analyze associations with subunit volumes. Both groups with a history of violence exhibited smaller anterior-superior subunit volumes than HC (NPV Cohen's d = 0.56, p = 0.01 and PSY-V d = 0.38, p = 0.01). There were no significant differences between HC and PSY-NV. PCL-R scores were positively associated with the inferior tubular subunit on a trend level (uncorrected p = 0.045, Cohen's d = 0.04). We found distinct hypothalamic subunit volume reductions in persons with a history of violence independent of concomitant psychotic disorder but not in persons with psychosis alone. The results provide further information about the involvement of the hypothalamus in aggression, which ultimately may lead to the development of targeted treatment for the clinical and societal challenge of aggression and violent behavior.

Validating latent profiles of the Psychopathy Checklist-Revised with a large sample of incarcerated men.

There is a long tradition of theory and research on putative variants of psychopathic and other antisocial clinical presentations. However, using different samples, psychopathy measures, terminologies, and analytic methods makes interpretation of the findings difficult. Emerging research suggests that the validated four-factor model of the Psychopathy Checklist-Revised (PCL-R) provides a consistent and empirically robust framework for identifying psychopathic variants and antisocial subtypes (Hare et al., 2018; Neumann et al., 2016). The current study employed latent profile analysis (LPA) of the full range of PCL-R scores in a large sample of incarcerated men (N = 2,570) to replicate and extend recent LPA research on PCL-R-based latent classes. Consistent with previous research, a four-class solution emerged as optimal, with the following antisocial subtypes: Prototypic Psychopathic (C1), Callous-Conning (C2), Externalizing (C3), and General Offender (C4). We validated the subtypes by examining their differential associations with theoretically meaningful external correlates: Child conduct disorder symptoms; adult nonviolent and violent offenses; Self-Report Psychopathy; Psychopathic Personality Inventory; Symptom Checklist-90 Revised; and behavioral activation system and behavioral inhibition system scores. The discussion focused on conceptions of the PCL-R-based subgroups and their potential application to risk assessment and treatment/management programs. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

Between psychopathy and deviant socialization: A close look at the mafia men

The Italian mafia organizations represent a subculture with values, beliefs and goals that are antithetical to and undermining of the predominant society. The conduct of individual members includes such extreme violence for material gain, it may at least superficially suggest a severe personality disorder. Since the first edition of the DSM and into the 21st century, various terms have been used, sometimes interchangeably, but over time inconsistently, to designate the mentality and practices of mafia members. Only recently has the psychology of mafia members become a focus of serious scientific study. Following broader national multicenter research, the present study aimed at investigating the possible differences in psychopathy between those mafia associates who had been convicted only of mafia association (Group A, bosses), and those who were also convicted of violent crimes (Group B, soldiers). The Psychopathy Checklist-Revised (PCL-R) was administered to n = 48 male inmates convicted of mafia association (Mage 45.0 years, SD 10.9, range 20–80 years); Group A consisted of n = 26 (54%) subjects, Group B n = 22 (46%). Most of the sample (73%) did not manifest psychopathy (PCL-R ≥ 25) nor Mann-Whitney U test disclosed significant differences in the total PCL-R scores between the study groups. We found significantly higher scores of PCR-R factor 1 (interpersonal / affective) in the members of the mafia association also convicted of violent crimes (PCL-R F1, group A: 5.8 ± 3.7; group B: 7.9 ± 3.5; p < 0.05), this difference appeared explainable on the basis of a higher component of affective psychopathy. These initial results add to the limited literature on mafia and psychopathy and seem to suggest the existence of a specific component of psychopathy in the subgroup of mafiosi with overtly violent conduct.

Trauma, Psychopathic Traits, and Resilience in Female Post-Prison Reentry Outcomes

A growing body of research has examined female psychopathy, yet gaps remain. Recent research has explored links between early trauma, psychopathic traits, and behavioral outcomes. Utilizing data collected as part of the evaluation of the Seattle Women’s Reentry (SWR) Initiative, this study investigates the relationship between early trauma and psychopathic traits in female post-prison reentry outcomes. The role of psychopathic traits as a protective resilience factor that moderates early trauma for women leaving prison and reentering the community is explored. Background information, survey data, and Psychopathy Checklist-Revised (PCL-R) scores are analyzed in relation to recidivism three-years post release for 85 women released from the Washington Corrections Center for Women (WCCW) in Washington State. Results indicated that the majority of the women in the study have early trauma backgrounds, PCL-R scores predict recidivism while trauma did not, and PCL-R scores did not moderate the relationship between trauma and recidivism. Results also found that PCL-R scores were associated with higher levels of self-esteem. Findings are consistent with prior research showing a link between psychopathic traits and recidivism but do not offer support for psychopathic traits as a moderating resilience protective factor between trauma and recidivism.

Psychopathy subdomains in violent offenders with and without a psychotic disorder

Background Violence in psychosis has been linked to antisocial behavior and psychopathy traits. Psychopathy comprises aspects of interpersonal, affective, lifestyle, and antisocial traits which may be differently involved in violent offending by persons with psychotic disorders. We explored psychopathy subdomains among violent offenders with and without a psychotic disorder. Methods 46 males, with a history of severe violence, with (n = 26; age 35.85 ± 10.34 years) or without (n = 20; age 39.10 ± 11.63 years) a diagnosis of a psychotic disorder, were assessed with the Psychopathy Checklist-Revised (PCL-R). PCL-R was split into subdomains following the four-facet model. Group differences in total and subdomain scores were analyzed with a general linear model with covariates. Results Total PCL-R scores did not differ between the groups (p = 0.61, Cohen’s d = 0.17). The violent offenders without psychotic disorders had higher facet 2 scores than the patient group with psychotic disorders (p = 0.029, Cohen’s d = 0.77). Facet 1, 3, or 4 scores did not differ between the groups. Controlling for age did not alter the results. Conclusion Patients with a psychotic disorder and a history of severe violence have lower affective psychopathy scores than violent offenders without psychotic disorders. This observation may point toward distinct underlying mechanisms for violence and may provide a target for focused treatment and prevention.

An examination of autonomic and facial responses to prototypical facial emotion expressions in psychopathy.

Meta-analyses have found that people high in psychopathy categorize (or "recognize") others' prototypical facial emotion expressions with reduced accuracy. However, these have been contested with remaining questions regarding the strength, specificity, and mechanisms of this ability in psychopathy. In addition, few studies have tested holistically whether psychopathy is related to reduced facial mimicry or autonomic arousal in response to others' dynamic facial expressions. Therefore, the current study presented 6 s videos of a target person making prototypical emotion expressions (anger, fear, disgust, sadness, joy, and neutral) to N = 88 incarcerated adult males while recording facial electromyography, skin conductance response (SCR), and heart rate. Participants identified the emotion category and rated the valence and intensity of the target person's emotion. Psychopathy was assessed via the Psychopathy Checklist-Revised (PCL-R). We predicted that overall PCL-R scores and scores for the interpersonal/affective traits, in particular, would be related to reduced emotion categorization accuracy, valence ratings, intensity ratings, facial mimicry, SCR amplitude, and cardiac deceleration in response to the prototypical facial emotion expressions. In contrast to our hypotheses, PCL-R scores were unrelated to emotion categorization accuracy, valence ratings, and intensity ratings. Stimuli failed to elicit facial mimicry from the full sample, which does not allow drawing conclusions about the relationship between psychopathy and facial mimicry. However, participants displayed general autonomic arousal responses, but not to prototypical emotion expressions per se. PCL-R scores were also unrelated to SCR and cardiac deceleration. These findings failed to identify aberrant behavioral and physiological responses to prototypical facial emotion expressions in relation to psychopathy.

Intact prioritization of fearful faces during continuous flash suppression in psychopathy.

Affective state recognition and in particular the identification of fear is known to be impaired in psychopathy. It is unclear, however, whether this reflects a deficit in basic perception ('fear blindness') or a deficit in later cognitive processing. To test for a perceptual deficit, 63 male incarcerated offenders, assessed with the Hare Psychopathy Checklist-Revised (PCL-R), detected fearful, neutral, and happy facial expressions rendered invisible through continuous flash suppression (CFS). Fearful faces were detected faster than neutral and happy faces. There was no reduction of the fear advantage in the 20 offenders diagnosed with psychopathy according to the PCL-R, and there was no correlation between the fear advantage and PCL-R scores. Deficits in the processing of fearful facial expressions in psychopathy may thus not reflect fear blindness, but impairments at later postperceptual processing stages. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

Psychopathy and crimes against humanity: A conceptual and empirical examination of human rights violators

PurposeThere is a dearth of empirical data on the contributions of personality, psychopathology, and psychopathy to terrorism and its actors. Because of a fortuitous set of circumstances, we had access to a sample of men convicted of crimes against humanity (CAH) committed during the Pinochet regime, each rated by expert clinicians on the Psychopathy Checklist-Revised (PCL-R). We also had PCL-R ratings for samples of general offenders and community participants. MethodsWe determined the psychometric properties of the PCL-R for these samples, performed structural equation modeling (SEM) to investigate the factor structure of the PCL-R, and conducted a latent profile analysis (LPA) of the obtained factors to identify classes or subtypes within the samples. ResultsThe PCL-R's psychometric properties and factor structure were in accord with findings from other countries and settings. The PCL-R total scores of the CAH and general offenders were virtually the same but much higher than those of the community sample. However, the CAH group had extraordinarily high scores on the Interpersonal/Affective facets yet relatively low scores on the Lifestyle/Antisocial facets. LPA identified the expected four latent classes, with most CAH men located within the Callous-Conning class. ConclusionsThe results of this study provide unique information about the psychopathic propensities of a sample of state violators of human rights. Their pattern of PCL-R scores was consistent with an extreme disposition for self-serving, callous, and ruthless treatment of others, without guilt or remorse, and in the absence of a prior documented history of severe antisocial behavior.

The contribution of psychopathic traits and substance use in the prediction of recidivism of sexual offenders

Substance use and dependence may play an essential role in the risk of reoffending by sex offenders. Research examining the influence of substance use and dependence on the criminal behaviour of psychopathic sex offenders is limited. Alcohol and drug use have been identified as factors which promote criminal behaviour and are suspected to contribute, at least partially, to the probability of reoffending. For instance, previous research showed that elevated scores on the Michigan Alcohol Screening Test (MAST) contribute to the predictability of the Hare Psychopathy Checklist – Revised (PCL-R) on recidivism. The current study retrospectively evaluated a database of incarcerated high-risk offenders registered in the Regional Treatment Center, Sex Offender Treatment Program (RTCSOTP); in order to assess the contribution of self-disclosed histories of alcohol and substance use and dependency have, in concert with measures of psychopathic characteristics, on the predictability of recidivism. Results of the retrospective data identified PCL-R and DAST (Drug Abuse Screening Test) scores as significant predictors of sexual and violent recidivism of male inmates undergoing treatment in RTCSOTP within 5 years of their release. MAST scores, however, did not significantly contribute to the predictability of sexual and violent recidivism in this population. We conclude, drug use should be considered as an important factor when addressing recidivism in sexual offenders who demonstrate psychopathic characteristics.

The age of violence: Mapping brain age in psychosis and psychopathy

Young chronological age is one of the strongest predictors for antisocial behaviour in the general population and for violent offending in individuals with psychotic disorders. An individual's age can be predicted with high accuracy using neuroimaging and machine-learning. The deviation between predicted and chronological age, i.e., brain age gap (BAG) has been suggested to reflect brain health, likely relating partly to neurodevelopmental and aging-related processes and specific disease mechanisms. Higher BAG has been demonstrated in patients with psychotic disorders. However, little is known about the brain-age in violent offenders with psychosis and the possible associations with psychopathy traits.We estimated brain-age in 782 male individuals using T1-weighted MRI scans. Three machine learning models (random forest, extreme gradient boosting with and without hyper parameter tuning) were first trained and tested on healthy controls (HC, n = 586). The obtained BAGs were compared between HC and age matched violent offenders with psychosis (PSY-V, n = 38), violent offenders without psychosis (NPV, n = 20) and non-violent psychosis patients (PSY-NV, n = 138). We ran additional comparisons between BAG of PSY-V and PSY-NV and associations with Positive and Negative Syndrome Scale (PANSS) total score as a measure of psychosis symptoms. Psychopathy traits in the violence groups were assessed with Psychopathy Checklist-revised (PCL-R) and investigated for associations with BAG.We found significantly higher BAG in PSY-V compared with HC (4.9 years, Cohen'sd = 0.87) and in PSY-NV compared with HC (2.7 years, d = 0.41). Total PCL-R scores were negatively associated with BAG in the violence groups (d = 1.17, p < 0.05). Additionally, there was a positive association between psychosis symptoms and BAG in the psychosis groups (d = 1.12, p < 0.05).While the significant BAG differences related to psychosis and not violence suggest larger BAG for psychosis, the negative associations between BAG and psychopathy suggest a complex interplay with psychopathy traits. This proof-of-concept application of brain age prediction in severe mental disorders with a history of violence and psychopathy traits should be tested and replicated in larger samples.

Incremental validity of the Psychopathy Checklist-Revised above and beyond the diagnosis of antisocial personality disorder regarding recidivism in sexual offenders

PurposeThe diagnostic criteria of the Antisocial Personality Disorder (ASPD) overlaps greatly with the Lifestyle and Antisocial facets of the Hare Psychopathy Checklist-Revised (PCL-R), whereas the Interpersonal and Affective facets seem to differentiate between antisocial and psychopathic offenders. Previous studies investigated either the ASPD diagnosis or psychopathy measured with the PCL-R, but not the combination of both in sexual offenders. The present study tested three hypotheses that PCL-R scores are incrementally predictive above and beyond the ASPD diagnosis regarding general recidivism, non-sexual violent recidivism, and sexual recidivism. MethodsWe performed Cox regression modeling with two-fold cross validation, using a training sample (n = 755) and a testing sample (n = 368) of adult male sexual offenders from Austria. Average time-at-risk was 10.13 years. ResultsThe PCL-R scores predicted general and violent recidivism after the diagnosis of the ASPD was controlled for. The Lifestyle and Antisocial facets, in particular, were incremental. Sexual recidivism could not be predicted. ConclusionsThe current results support the use of the PCL-R in applied sexual offender assessment in addition to general clinical diagnostic procedures due to its incremental validity, despite a large overlap between the diagnostic criteria of ASPD and the PCL-R concept of psychopathy.

Neural responses to morally laden interactions in female inmates with psychopathy

Much of social cognition requires making inferences about the mental and emotional states of others. Moreover, understanding the emotions of others is an important foundation for moral decision-making. Psychopathy is associated with both aberrant emotional understanding and atypical hemodynamic responses when viewing and evaluating morally laden social interactions. In the present functional MRI study, female inmates (N = 107) were asked to evaluate the likely emotional state of either the recipient or the initiator of harmful or helpful interactions. Psychopathy was assessed with the Psychopathy Checklist-Revised (PCL-R). PCL-R scores were not associated with differences in confidence or accuracy ratings. However, psychopathy scores were significantly related to increased hemodynamic response in right dorsolateral prefrontal cortex when viewing harmful interactions and decreased functional connectivity from right amygdala to inferior parietal cortex and insula, and from temporal parietal junction to dorsomedial prefrontal cortex. Overall, this work indicates that in females, psychopathy is associated with normal behavioral accuracy and confidence but alterations in neural network activity during moral decision-making.

Brain gray matter differences among forensic psychiatric patients with psychosis and incarcerated individuals without psychosis: A source-based morphometry study

BackgroundWhile psychosis is a risk factor for violence, the majority of individuals who perpetrate aggression do not present psychotic symptoms. Pathological aggressive behavior is associated with brain gray matter differences, which, in turn, has shown a relationship with increased psychopathic traits. However, no study, to our knowledge, has ever investigated gray matter differences in forensic psychiatric patients with psychosis compared with incarcerated individuals without psychosis matched on levels of psychopathic traits. Here, we employed source-based morphometry (SBM) to investigate gray matter differences in these two populations. MethodsWe scanned 137 participants comprising two offender subgroups: 69, non-psychotic incarcerated offenders and 68, psychotic, forensic psychiatric patients. Groups showed no difference in age, race, ethnicity, handedness, and Hare Psychopathy Checklist-Revised scores. Source-based morphometry was utilized to identify spatially distinct sets of brain regions where gray matter volumes covaried between groups. SBM is a data-driven, multivariate technique that uses independent components analysis to categorize groups of voxels that display similar variance patterns (e.g., components) that are compared across groups. ResultsSBM identified four components that differed between groups. These findings indicated greater loading weights in the superior, transverse, and middle temporal gyrus and anterior cingulate in the non-psychotic versus psychotic group; greater loading weights in the basal ganglia in the psychotic versus non-psychotic group; greater loading weights in the frontal pole, precuneus, and visual cortex among psychotic versus non-psychotic offenders; and greater loading weights in the thalamus and parahippocampal gyrus in psychotic versus non-psychotic groups. ConclusionsTwo different offender groups that perpetrate violence and show comparable levels of psychopathic traits evidenced different gray matter volumes. We suggest that future studies of violent offenders with psychosis take psychopathic traits into account to refine neural phenotypes.

Clarifying Conceptions Underlying Adult Psychopathy Measures: A Construct Validity Metric Approach.

Although the Psychopathy Checklist-Revised (PCL-R) and Psychopathic Personality Inventory (PPI) ostensibly measure the same construct, they seem to emphasize different conceptions of psychopathy. This study was designed to clarify these differences by testing how well the PCL-R and PPI map alternative conceptions of psychopathy. Construct validity metrics were used to compare patterns of associations between psychopathy measures and 14 theory-relevant criterion variables that were observed in a sample of 1,281 offenders-with patterns of associations that were predicted based on alternative psychopathy conceptions. PCL-R total scores were most consistent with Karpman's affective dysfunction-centered secondary conception, and PPI total scores were most consistent with the McCords' lovelessness-based conception. Although similarities emerged at the factor level, the PPI demonstrated higher levels of consistency between theory-based predictions and observed relations than did the PCL-R. These results provide direction for refining measures in future research and interpreting PCL-R and PPI scores in current practice.

Interpersonal and Affective Facets and Items of the Psychopathy Checklist-Revised (PCL-R) in Predicting Child Sex Offending.

Psychopathy of child sex offenders in non-Western and Asian population is not frequently reported. The study examined psychopathic traits assessed by the Psychopathy Checklist-Revised (PCL-R) in three groups of male offenders, child sex offender, adult sex offender, and nonsex offender groups. Out of 451 offenders included in the sample, 445 recidivated after a follow up of 11 years: 27 child sex offenders, 174 adult sex offenders, and 244 nonsex offenders. Adult sex offenders scored higher in four facets and total scores compared with nonsex offenders. Child sex offenders had more problems in interpersonal (facet 1) and affective (facet 2) traits than nonsex offenders. More specifically, child sex offenders scored higher in failure to accept responsibility (item 16, Cohen's d = 0.80) and callous/lack of empathy (item 8, Cohen's d = 0.59) of facet 2 and pathological lying (item 4, Cohen's d = 0.58) and glibness/superficial charm (item 1, Cohen's d = 0.48) of facet 1 than nonsex offenders. Both child sex offenders and adults sex offenders were found to be more psychopathic than nonsex offenders. While facets 1, 2, and 3 did not separate child and adult sex offending, child sex offenders scored significantly lower in antisocial problems (facet 4) than adult sex offenders. Despite the limitation of using a sample of mostly high-risk offenders, our findings indicate that higher PCL-R scores in specific facets (1 and 2) and items (1, 4, 8, and 16) are more predictive of child sex offending and suggest insight for treatment strategies of child sex offenders.

Few Differences in the Externalizing and Criminal History of Young Violent Offenders With and Without Autism Spectrum Disorders

Autism spectrum disorders (ASDs) are known to be associated with an increased risk of aggression and challenging behavior. In this study, we have mapped the externalizing history of a nationally representative cohort of young violent offenders with ASD, compared with offenders without ASD. Two hundred and sixty-nine violent offenders were assessed for prevalence of ASD, and participated in a thorough assessment of previous externalizing problems and criminal history. Twenty-six offenders met consensus clinical DSM-IV criteria for ASD and they were compared to offenders without ASD from the same cohort. Overall, we found a very high prevalence of externalizing and antisocial behaviors in the history of these offenders and there were few differences between the groups. Placements in foster homes were overrepresented in the ASD group and the ASD-offenders had significantly more often been diagnosed with a neurodevelopmental disorder (i.e. ASD or ADHD) by a clinician before the study. At index conviction, ASD offenders were overrepresented in sex crimes with a child victim. Though offenders without ASD had more previous convictions, in particular drug crimes, we found no difference in terms of total number of prosecuted crimes. Substance use disorders were more common among offenders without ASD. The ASD offenders scored higher compared to the non-ASD offenders on the Affective facet of the Psychopathy Checklist-Revised (PCL-R) but there were no differences in terms of total PCL-R scores. Our results provide important knowledge of the developmental history of offenders with ASD. Though this is a small and atypical phenotype it poses significant challenges to the criminal justice system and we need to understand more of it to be able to prevent these individuals from committing crimes but also to provide a fair judicial treatment, to assess exculpatory factors and improve our forensic treatment models.

Drug Abuse and Behavioral Transgressions during Methadone Maintenance Treatment (MMT) are Related to High Psychopathy Levels

Introduction: Studies which used the Psychopathy Checklist-Revised (PCL-R) among methadone maintenance treatment (MMT) patients focused mostly on methodological issues, without addressing its relationship to patients' misconduct during treatment. This paper tests the hypothesis that high PCL-R scores are related to high rates of drug abuse, and high numbers of behavioral transgressions in MMT during a 7-year period. Material and Methods: 107 MMT patients were recruited from a MMT clinic in Israel, and were administered the PCL-R. The questionnaires results as well as routine drug test findings were recorded between 7/2007 and 11/2007. Seven years later (7/2014), repeated drug test results were analyzed, and the number of behavioral transgressions during the entire period was computed. Results: High levels of psychopathy were related to drug test results indicating any illicit drug use, cocaine use and benzodiazepines misuse at the beginning of study, and limited to benzodiazepines misuse among patients who stayed in treatment at the 7-year follow-up. However, higher scores on different PCL-R facets were significantly associated with different types of drugs. The PCL-R's total score and all but the antisociality facet were positively correlated with a higher number of behavioral transgressions (such as, threats and/or verbal and physical aggression). Conclusions: Administration of the PCL-R during MMT may help identify patients with high illicit drug use levels and a higher chance of committing behavioral transgressions during treatment.

Psychopathy and intelligence in high-risk violent women

ABSTRACTThere has been a longstanding debate and mixed evidence on the link between psychopathy and intelligence. Most of the existing research comes from male prisoners, with the literature on female psychopathy and intelligence remaining sparse. Thus, the current study explored the correlational association between psychopathy and intelligence in a sample of high-risk violent female offenders. This is the first study of its kind from the Offender Personality Disorder (OPD) pathway for women in the United Kingdom (UK). The sample includes high-risk violent women presenting with severe personality disorder. In the present study, we conducted a correlational examination between total scores, and the 2-factor and 4-facet structure of the Psychopathy Checklist-Revised (PCL-R) with intelligence using the Wechsler Adult Intelligence Scale (WAIS). No significant associations were found between total PCL-R scores, or factor 2, and intelligence. Positive associations were found between verbal comprehension and factor 1 and the interpersonal facet. Thus, the results suggest high-risk violent female offenders with interpersonal psychopathic traits demonstrate higher levels of verbal comprehension skills. This finding may help explain why psychopathic female offenders, who can be characterized by deceitful and egocentric behaviours, may be able to successfully charm and con others for their own personal gain.