Hare Psychopathy Checklist-Revised Research Articles

Is measuring psychopathy as defined by the Hare Psychopathy Checklist-Revised (PCL-R) the most important single component in assessing risk of offending behaviour and likely response to treatment in offenders?

Hare’s (2003) Psychopathy Checklist – Revised (PCL-R) comprises a 20-item checklist designed to assess the clinical construct of psychopathy. There is research to show that the PCL-R has impressive predictive validity for offending behaviour, and this has led some to suggest that psychopathy is the most important single component to measure when assessing risk of offending behaviour and likely response to treatment. Here I consider and critique the evidence for and against this argument.

To Reoffend or Not to Reoffend? An Investigation of Recidivism Among Individuals With Sexual Offense Histories and Psychopathy.

Although psychopathy is a well-established risk factor for recidivism among those who have committed sexual offenses, there are nonetheless some individuals with sexual offense histories who are high in psychopathy but do not recidivate. This population-nonrecidivating psychopathic sex offenders (NRP-SOs)-was the focus of the current investigation. Data from 111 individuals with sexual offense histories who received a Hare Psychopathy Checklist-Revised (PCL-R) rating of at least 25 (suggesting the presence of psychopathy) were analyzed. With recidivism operationalized as the accrual of any new serious-that is, violent or sexual-charges, 39 recidivated (RP-SOs), whereas 72 did not (NRP-SOs). A logistic regression was conducted to assess whether NRP-SOs could be differentiated from RP-SOs. Being older at the time of release, a lesser criminal history, and being married predicted nonrecidivism. PCL-R factor scores and sexual deviance were not predictive. These findings highlight the heterogeneity that exists, even among those high in psychopathy.

Sex Differences in QEEG in Psychopath Offenders.

Introduction. Functional brain differences related to sex in psychopathic behavior represent an important field of neuroscience research; there are few studies on this area, mainly in offender samples. Objective. The aim of this study was to investigate the presence of electrophysiological differences between male and female psychopath offenders; specifically, we wanted to assess whether the results in quantitative EEG, low-resolution electromagnetic tomography (LORETA), and changes in synchronous brain activity could be related to sex influence. Sample and Methods. The study included 31 male and 12 female psychopath offenders, according to the Hare Psychopathy Checklist-Revised criteria from 2 prisons located in Havana City. The EEG visual inspection characteristics and the use of frequency domain quantitative analysis techniques are described. Results. The resting EEG visual analyses revealed a high percentage of EEG abnormalities in both studied groups. Significant statistical differences between the mean parameters of cross spectral measures between psychopathic offender groups were found in the beta band at bilateral frontal derivation and centroparietal areas. LORETA showed differences especially in the paralimbic and parieto-occipital areas Synchronization likelihood revealed a significant group effect in the 26 to 30 Hz band. These results indicate that combining quantitative EEG, LORETA analysis, and synchronization likelihood may improve the neurofunctional differentiation between psychopath offenders of both sexes.

Childhood Abuse, Attachment, and Psychopathy among Individuals Who Commit Sexual Offenses

Individuals who commit sexual offenses and also meet criteria for psychopathy are among the most concerning groups of forensic clients. This exploratory study included 109 adult males and examined the following questions: (1) Do sexual offenders with higher scores on the Hare Psychopathy Checklist-Revised (PCL-R) demonstrate similar patterns of attachment, or do they present with a variety of attachment patterns? (2) What is the relationship between a history of child abuse and attachment styles? (3) What are the relationships between specific child abuse experiences and the facets of the PCL-R? and (4) What are the relationships between different attachment patterns and the facets of the PCL-R? Findings indicate that men who experienced childhood abuse of any kind were more likely to demonstrate a fearful or preoccupied attachment style. Those who were securely attached were less likely to engage in antisocial behavior, and those who were more anxiously attached were less arrogant and deceptive in interpersonal relationships. Implications for practice, policy, and research are discussed.

Psychopathy is associated with shifts in the organization of neural networks in a large incarcerated male sample.

Psychopathy is a personality disorder defined by antisocial behavior paired with callousness, low empathy, and low interpersonal emotions. Psychopathic individuals reliably display complex atypicalities in emotion and attention processing that are evident when examining task performance, activation within specific neural regions, and connections between regions. Recent advances in neuroimaging methods, namely graph analysis, attempt to unpack this type of processing complexity by evaluating the overall organization of neural networks. Graph analysis has been used to better understand neural functioning in several clinical disorders but has not yet been used in the study of psychopathy. The present study applies a minimum spanning tree graph analysis to resting-state fMRI data collected from male inmates assessed for psychopathy with the Hare Psychopathy Checklist-Revised (n = 847). Minimum spanning tree analysis provides several metrics of neural organization optimality (i.e., the effectiveness, efficiency, and robustness of neural network organization). Results show that inmates higher in psychopathy exhibit a more efficiently organized dorsal attention network (β==0.101, pcorrected==0.018). Additionally, subcortical structures (e.g., amygdala, caudate, and hippocampus) act as less of a central hub in the global flow of information in inmates higher in psychopathy (β==-0.104, pcorrected==0.048). There were no significant effects of psychopathy on neural network organization in the default or salience networks. Together, these shifts in neural organization suggest that the brains of inmates higher in psychopathy are organized in a fundamentally different way than other individuals.

Psychopathy and treatment outcome: Results from a sexual violence reduction program.

The present study examined the association of psychopathy, measured by the Hare Psychopathy Checklist-Revised (PCL-R; Hare, 1991, 2003), to sexual offender treatment completion, change, and recidivism in a Canadian sample of 302 treated sexual offenders followed up in the community 17.6 years post release. Sexual violence risk and treatment change was evaluated via the Violence Risk Scale-Sexual Offense version (Wong, Olver, Nicholaichuk, & Gordon, 2003-2017), and general violence risk via the Sex Offender Risk Appraisal Guide (Quinsey, Harris, Rice, & Cormier, 1998). High-psychopathy men had significantly higher rates of sexual offender treatment noncompletion (30%) than low-psychopathy men (6%), although they did not evidence significantly less therapeutic change. The Affective facet of the PCL-R uniquely, significantly predicted decreased therapeutic progress, and along with the Lifestyle facet, it predicted treatment noncompletion. Examination of recidivism outcomes revealed that treatment completion in and of itself was not significantly associated with decreased sexual or violent recidivism among psychopathic offenders; however, therapeutic change, reflecting risk reduction, was significantly associated with decreased sexual and violent recidivism after controlling for baseline risk and PCL-R score. Results of survival analysis indicated that a subgroup of high-risk psychopathic men who made substantial treatment gains had lower trajectories of sexual and violent recidivism over the follow-up period relative to other high-risk men who demonstrated fewer treatment benefits. The issue of therapeutic pessimism with implications for the treatment and retention of high-psychopathy sexual offenders, per the two-component model, is discussed. (PsycINFO Database Record (c) 2019 APA, all rights reserved).

Affective and interpersonal psychopathic traits associated with reduced corpus callosum volume among male inmates - RETRACTED.

Psychopathy is a personality disorder associated with severe emotional and interpersonal consequences and persistent antisocial behavior. Neurobiological models of psychopathy emphasize impairments in emotional processing, attention, and integration of information across large-scale neural networks in the brain. One of the largest integrative hubs in the brain is the corpus callosum (CC) - a large white matter structure that connects the two cerebral hemispheres. The current study examines CC volume, measured via Freesurfer parcellation, in a large sample (n = 495) of incarcerated men who were assessed for psychopathic traits using the Hare Psychopathy Checklist-Revised (PCL-R). Psychopathy was associated with reduced volume across all five sub-regions of the CC. These relationships were primarily driven by the affective/interpersonal elements of psychopathy (PCL-R Factor 1), as no significant associations were found between the CC and the lifestyle/antisocial traits of psychopathy. The observed effects were not attributable to differences in substance use severity, age, IQ, or total brain volume. These findings align with suggestions that core psychopathic traits may be fostered by reduced integrative capacity across large-scale networks in the brain.

A comprehensive examination of the psychometric properties of the Hare Psychopathy Checklist-Revised in a Canadian multisite sample of indigenous and non-indigenous offenders.

The present study examined the psychometric properties of Hare Psychopathy Checklist-Revised (PCL-R; Hare, 2003) scores in a multisite sample of 1,163 federally incarcerated Canadian indigenous and non-indigenous offenders from the Prairie Region of the Correctional Service of Canada. The research occurred against the backdrop of the Ewert v. Canada (2015) matter, in which the PCL-R was originally impugned in Federal Court for use with indigenous persons (later overturned in Canada v. Ewert, 2016). Indigenous men scored higher than non-indigenous men on most components of the PCL-R and had higher rates of recidivism, irrespective of follow-up. Discrimination analyses, however, supported the predictive efficacy of PCL-R total, factor, and facet scores for violent and general recidivism across both ancestral groups, with most group differences in area under the curve (AUC) magnitudes being small and nonsignificant. Calibration analyses demonstrated that higher PCL-R scores were associated with higher rates of general and violent recidivism for both ancestral groups, although higher recidivism rates were observed and estimated for indigenous men at specific PCL-R score thresholds. Confirmatory factor analyses supported the 4-factor model of psychopathy and hence, structural invariance, of PCL-R scores across ancestral groups. Structural equation modeling affirmed the predictive efficacy of the 4-factor model for recidivism. We discuss these findings in terms of clinical applications of the PCL-R and the psychopathy construct in general, with male offenders of indigenous ancestry. (PsycINFO Database Record

Psychopathic traits associated with abnormal hemodynamic activity in salience and default mode networks during auditory oddball task.

Psychopathy is a personality disorder accompanied by abnormalities in emotional processing and attention. Recent theoretical applications of network-based models of cognition have been used to explain the diverse range of abnormalities apparent in psychopathy. Still, the physiological basis for these abnormalities is not well understood. A significant body of work has examined psychopathy-related abnormalities in simple attention-based tasks, but these studies have largely been performed using electrocortical measures, such as event-related potentials (ERPs), and they often have been carried out among individuals with low levels of psychopathic traits. In this study, we examined neural activity during an auditory oddball task using functional magnetic resonance imaging (fMRI) during a simple auditory target detection (oddball) task among 168 incarcerated adult males, with psychopathic traits assessed via the Hare Psychopathy Checklist-Revised (PCL-R). Event-related contrasts demonstrated that the largest psychopathy-related effects were apparent between the frequent standard stimulus condition and a task-off, implicit baseline. Negative correlations with interpersonal-affective dimensions (Factor 1) of the PCL-R were apparent in regions comprising default mode and salience networks. These findings support models of psychopathy describing impaired integration across functional networks. They additionally corroborate reports which have implicated failures of efficient transition between default mode and task-positive networks. Finally, they demonstrate a neurophysiological basis for abnormal mobilization of attention and reduced engagement with stimuli that have little motivational significance among those with high psychopathic traits.

The relationship between cavum septum pellucidum and psychopathic traits in a large forensic sample

Cavum septum pellucidum (CSP) is a neuroanatomical variant of the septum pellucidum that is considered a marker for disrupted brain development. Several small sample studies have reported CSP to be related to disruptive behavior, persistent antisocial traits, and even psychopathy. However, no large-scale samples have comprehensively examined the relationship between CSP, psychopathic traits, and antisocial behavior in forensic samples. Here we test hypotheses about the presence of CSP and its relationship to psychopathic traits in incarcerated males (N = 1432). We also examined the incidence of CSP in two non-incarcerated male control samples for comparison (N = 208 and 125). Ethnic and racial composition was varied with a mean age of 33.1, and an average IQ of 96.96. CSP was evaluated via structural magnetic resonance imaging. CSP was measured by length (number of 1.0 mm slices) in continuous analyses, and classified as absent (0) or present (1+ mm), as well as by size (absent (0), small (1–3), medium (4–5), or large (6+ mm)) for comparison with prior work. The Wechsler Adult Intelligence Scale (WAIS-III), Structured Clinical Interview (SCID-I/P), and Hare Psychopathy Checklist-Revised (PCL-R) were used to assess IQ, substance dependence, and psychopathy, respectively. CSP length was positively associated with PCL-R total, Factor 1 (interpersonal/affective) and Facets 1 (interpersonal) and 2 (affective). CSP was no more prevalent among inmates than among non-incarcerated controls, with similar distributions of size. These results support the hypotheses that abnormal septal/limbic development may contribute to dimensional affective/interpersonal traits of psychopathy, but CSP is not closely associated with antisocial behavior, per se.

Abnormal cortical gyrification in criminal psychopathy.

BackgroundPsychopathy is a personality disorder characterized by interpersonal and emotional abnormalities (e.g., lack of empathy and guilt) and antisocial behavior. Psychopathy has been associated with a number of structural brain abnormalities, most notably in orbital frontal and anterior/medial temporal regions, that may underlie psychopathic individuals' problematic behaviors. Past research evaluating cortical structure in psychopathy has considered thickness and volume, but to date no study has investigated differences in cortical gyrification, a measure of cortical complexity thought to reflect early neurodevelopmental cortical connectivity.MethodsWe measured the local gyrification index (LGI) in a sample of 716 adult male inmates and performed a whole brain analysis assessing the relationship between LGI and total and factor scores on the Hare Psychopathy Checklist-Revised (PCL-R).ResultsPCL-R scores were negatively associated with LGI measures within the right hemisphere in the midcingulate cortex (MCC) and adjacent regions of the superior frontal gyrus as well as lateral superior parietal cortex. Additionally, PCL-R Factor 1 scores (interpersonal/affective traits) predicted less LGI within the right MCC and adjacent dorsomedial frontal cortex and greater LGI in bilateral occipital cortex. Scores on PCL-R Factor 2, indicating impulsivity and antisocial behaviors, did not predict LGI in any regions.ConclusionsThese findings suggest that psychopathy, particularly the interpersonal and affective traits, are associated with specific structural abnormalities that form during neurodevelopment and these abnormalities may underlie aberrant brain functioning in regions important in emotional processing and cognitive control.

Supplemental Material for A Comprehensive Examination of the Psychometric Properties of the Hare Psychopathy Checklist-Revised in a Canadian Multisite Sample of Indigenous and Non-Indigenous Offenders

Supplemental Material for A Comprehensive Examination of the Psychometric Properties of the Hare Psychopathy Checklist-Revised in a Canadian Multisite Sample of Indigenous and Non-Indigenous Offenders

Firesetting and general criminal recidivism among a consecutive sample of Finnish pretrial male firesetters: A register-based follow-up study

The rate of criminal reoffending among firesetters varies greatly. Our aim was to investigate firesetting and general criminal recidivism in a consecutive sample of Finnish males who were sent for a forensic psychiatric examination (FPE)11FPE = Forensic psychiatric examination. after committing firesetting offenses. We also wanted to evaluate the relationships between psychopathy and criminal recidivism, and between schizophrenia-spectrum disorders and criminal recidivism. The sample comprised 113 firesetters with a mean age of 32.8 years, and the average follow-up time was 16.9 years. The FPE statements of the firesetters were reviewed and psychiatric diagnoses were collected. The psychopathy assessments were based on the 20-item Hare Psychopathy Checklist-Revised (PCL-R). Information on reoffending was gathered from the Finnish National Police Register. During the follow-up 20 (18%) persons were registered for a new firesetting and 84 (74%) for any new offense. Firesetters with high traits (PCL-R ≥ 25) of psychopathy were more likely than those with low traits (PCL-R < 25) to reoffend with any crime during the follow-up. The risk of general criminal recidivism was lower among firesetters with a schizophrenia-spectrum disorder than among those with non-psychotic disorders. Conclusively, both firesetting and general criminal-recidivism rates were high in this sample of offenders.

Aggressiveness and the intensity of psychopathic symptoms - gender differences.

The analysis of the recent international reports in the literature on psychopathy has proved irrefutablythat there is a necessity for the in-depth studies on psychopathy among the female sentenced offenders. Although there is no disagreement among the researchers on the 'male' form of this disorder, there are still very few gender comparative studies. The aim of this project was to investigate the relationship between the intensity of particular psychopathic features and aggressive tendencies in a group of female and male inmates. 100 incarcerated adult males and 100 incarcerated adult females were studied. To assess the intensity of the psychopathic features the Hare Psychopathy Checklist-Revised (PCL-R; Hare, 2003) was used. Aggressive tendencies were measured using the self-reported Buss-Perry Aggression Questionnaire (AQ; Buss and Perry, 1992). The analysis of variance showed that 12 out of the 20 PCL-R items differentiate indicators of aggressiveness at statistically significant level in the group of male and female prisoners. The obtained data suggest that there are gender differencesin the manifestation of psychopathy-characteristic features. In both gender groups psychopathic deficiencies can be linked with aggressive behaviors.

Differentiating emotional processing and attention in psychopathy with functional neuroimaging.

Individuals with psychopathy are often characterized by emotional processing deficits, and recent research has examined the specific contexts and cognitive mechanisms that underlie these abnormalities. Some evidence suggests that abnormal features of attention are fundamental to emotional deficits in persons with psychopathy, but few studies have demonstrated the neural underpinnings responsible for such effects. Here, we use functional neuroimaging to examine attention-emotion interactions among incarcerated individuals (n = 120) evaluated for psychopathic traits using the Hare Psychopathy Checklist-Revised (PCL-R). Using a task designed to manipulate attention to emotional features of visual stimuli, we demonstrate effects representing implicit emotional processing, explicit emotional processing, attention-facilitated emotional processing, and vigilance for emotional content. Results confirm the importance of considering mechanisms of attention when evaluating emotional processing differences related to psychopathic traits. The affective-interpersonal features of psychopathy (PCL-R Factor 1) were associated with relatively lower emotion-dependent augmentation of activity in visual processing areas during implicit emotional processing, while antisocial-lifestyle features (PCL-R Factor 2) were associated with elevated activity in the amygdala and related salience network regions. During explicit emotional processing, psychopathic traits were associated with upregulation in the medial prefrontal cortex, insula, and superior frontal regions. Isolating the impact of explicit attention to emotional content, only Factor 1 was related to upregulation of activity in the visual processing stream, which was accompanied by increased activity in the angular gyrus. These effects highlight some important mechanisms underlying abnormal features of attention and emotional processing that accompany psychopathic traits.

Examining the interrater reliability of the Hare Psychopathy Checklist-Revised across a large sample of trained raters.

The goal of the current study was to assess the interrater reliability of the Psychopathy Checklist-Revised (PCL-R) among a large sample of trained raters (N = 280). All raters completed PCL-R training at some point between 1989 and 2012 and subsequently provided complete coding for the same 6 practice cases. Overall, 3 major conclusions can be drawn from the results: (a) reliability of individual PCL-R items largely fell below any appropriate standards while the estimates for Total PCL-R scores and factor scores were good (but not excellent); (b) the cases representing individuals with high psychopathy scores showed better reliability than did the cases of individuals in the moderate to low PCL-R score range; and (c) there was a high degree of variability among raters; however, rater specific differences had no consistent effect on scoring the PCL-R. Therefore, despite low reliability estimates for individual items, Total scores and factor scores can be reliably scored among trained raters. We temper these conclusions by noting that scoring standardized videotaped case studies does not allow the rater to interact directly with the offender. Real-world PCL-R assessments typically involve a face-to-face interview and much more extensive collateral information. We offer recommendations for new web-based training procedures. (PsycINFO Database Record

Treatment of psychopathic offenders: Evidence, issues, and controversies

Psychopathic offenders are a notoriously challenging population to treat, who are often recalcitrant to change and at high risk for program non-completion and recidivism. The present work is a review and synthesis of the evidence, issues, and controversies in the treatment of psychopathic offenders. The operationalization and measurement of the construct of psychopathy via the Hare Psychopathy Checklist–Revised is reviewed to give context to the population being treated and to identify latent features of the syndrome that have risk and treatment implications. A discussion of the issues and challenges in the treatment of psychopathic offenders is then provided to contextualize the source of therapeutic pessimism with this population, followed by a review of the existing psychopathy treatment literature. The characteristics of unsuccessful and encouraging treatment programs, including a promising model of treatment, are subsequently reviewed, and the article finishes with a synopsis of recent treatment outcome findings published subsequent to previous psychopathy treatment reviews or inadvertently overlooked by past reviews. Although psychopathic offenders are a challenging population to treat, I argue that they are not immune to making positive lifestyle and behavioural changes, and that these individuals have the potential to benefit if they can be retained in treatment.

Distinct neuronal patterns of positive and negative moral processing in psychopathy.

Psychopathy is a disorder characterized by severe and frequent moral violations in multiple domains of life. Numerous studies have shown psychopathy-related limbic brain abnormalities during moral processing; however, these studies only examined negatively valenced moral stimuli. Here, we aimed to replicate prior psychopathy research on negative moral judgments and to extend this work by examining psychopathy-related abnormalities in the processing of controversial moral stimuli and positive moral processing. Incarcerated adult males (N = 245) completed a functional magnetic resonance imaging protocol on a mobile imaging system stationed at the prison. Psychopathy was assessed using the Hare Psychopathy Checklist-Revised (PCL-R). Participants were then shown words describing three types of moral stimuli: wrong (e.g., stealing), not wrong (e.g., charity), and controversial (e.g., euthanasia). Participants rated each stimulus as either wrong or not wrong. PCL-R total scores were correlated with not wrong behavioral responses to wrong moral stimuli, and were inversely related to hemodynamic activity in the anterior cingulate cortex in the contrast of wrong > not wrong. In the controversial > noncontroversial comparison, psychopathy was inversely associated with activity in the temporal parietal junction and dorsolateral prefrontal cortex. These results indicate that psychopathy-related abnormalities are observed during the processing of complex, negative, and positive moral stimuli.

Investigating Characteristics of the Nonrecidivating Psychopathic Offender

Psychopathic offenders are at higher risk to violently reoffend than nonpsychopathic offenders; however, about one in four psychopathic offenders are not reconvicted for a violent offense even over extended follow-ups. The characteristics of nonrecidivating psychopathic offenders (NRPs) remain underexamined. In a sample of 123 offenders with a minimum Hare Psychopathy Checklist–Revised (PCL-R) score of 25, community follow-up of 5 years, and 4 months in a violence reduction program, 65 men receiving a violent conviction within 5 years (recidivating psychopathic offenders [RPs]) were compared with 58 who had not (NRPs). Comparatively, NRPs were older at release, had better community support, and were rated lower violence risk. NRPs also had significantly lower PCL-R Factor 2 scores, but higher Factor 1 scores. Post hoc analyses revealed prominent NRP characteristics included exploitative personality traits and a predilection for instrumentally violent crimes. Findings are discussed in terms of their implications for the risk assessment and treatment of psychopathic offenders.

Examining the DSM-5 alternative personality disorder model operationalization of antisocial personality disorder and psychopathy in a male correctional sample.

For decades, it has been known that the Diagnostic and Statistical Manual of Mental Disorders (DSM) diagnosis of Antisocial Personality Disorder (ASPD) is a nonadequate operationalization of psychopathy (Crego & Widiger, 2015). The DSM-5 alternative model of personality disorders provides an opportunity to rectify some of these long held concerns. The current study compared the Section III alternative model's trait-based conception of ASPD with the categorical model from the main diagnostic codes section of DSM-5 in terms of associations with differing models of psychopathy. We also evaluated the validity of the trait-based conception more broadly in relation to measures of antisocial tendencies as well as psychopathy. Participants were 200 male inmates who were administered a battery of self-report and interview-based researcher rating measures of relevant constructs. Analyses showed that Section III ASPD outperformed Section II ASPD in predicting scores on Hare's (2003) Psychopathy Checklist-Revised (PCL-R; r = .88 vs. .59). Additionally, aggregate scores for Section III ASPD performed well in capturing variance in differing ASPD and psychopathy measures. Finally, we found that the Section III ASPD impairment criteria added incrementally to the Section III ASPD traits in predicting PCL-R psychopathy and SCID-II ASPD. (PsycINFO Database Record