The Validity of Psychopathy

This paper is rather a profound hermeneutic enunciation putting into question our present understanding of psychopathy. It further articulates, in complement, a novel theoretical and methodological conceptualisation for a hermeneutic psychological science. Methodology-wise, it puts into question a traditional more or less categorical and mechanical approach to the social and behavioural sciences as it strives to introduce a creative and insightful approach for the articulation of ideas. It rather seeks to construe the scientific method as being more about falsifiability and (...) validation but driven by a sense of creative understanding and insight of notions laid out as open-ended conceptualisations. Theory-wise, it sees continuity between anthropology and psychology as anthropopsychology behind an entropic construct of human psychology based on a recurrent re-institutionalisation mechanism for intemporal-preservation-entropy/contiguity. (shrink)

Clinical psychologists remain puzzled about the diagnostic basis and therapeutic disposition of individuals who present with a clinical profile of psychopathy. Psychopaths have been characterized as lacking in conscience and presenting a mask of sanity, thus differentiating them from psychotics and neurotics. The clinical profile of the psychopathic personality seems at odds with Kant’s moral philosophy, in which Kant characterizes not only the central role of conscience in moral judgment, but in which Kant also insists that every person has a (...) conscience. In this paper the clinical assessments presented by Cleckley and Hare in particular are juxtaposed to Kant’s philosophical position, thereby to gain an understanding what is at the base of the psychopathic personality disorder. The clinical and the moral-philosophical assessments are reconciled, nonetheless leaving the clinical psychologist with the difficult task of therapeutic disposition. (shrink)

In order to assess the potential of psychopathy to increase evolutionary fitness, we examined the relations between psychopathy and fitness indicators (number of children and grandchildren, problems in physical health both in parents and offspring) in a sample of post-reproductive individuals (N = 187; Mage = 66.52). Specifically, we explored the possibility that psychopathy traits are involved in evolutionary trade-offs: both positive and negative relations with different fitness components. Psychopathy was measured via three traits—interpersonal, affective, and lifestyle characteristics, which are (...) operationalized by proxy scales derived from the HEXACO-PI-R inventory. Research findings showed that interpersonal traits were positively related to the number of children and negatively to the number of grandchildren and problems in physical health; lifestyle characteristics were positively associated with problems in physical health in participants’ offspring. The data are in line with previous studies which explored the relations between psychopathy and fitness. The findings extend on previous studies by suggesting that psychopathy may be involved in evolutionary trade-offs, especially the quantity-quality trade-off. These trade-offs may in return maintain inter-individual variation in psychopathy. (shrink)

In the present study, we tested the hypothesis that psychopathy emerges as an adaptive behavioral response to a harsh environment: psychopathy could represent a mediator in the link between a harsh environment and fast life history pathway. We measured environmental harshness, psychopathy (boldness, meanness, and disinhibition), and a wide range of life history parameters (expected longevity, covitality, age at first menstruation, age at first sex, mating success, planned age at first reproduction, and expected total fertility) in a sample of young (...) female adults (N = 196). Factor analysis of the life history indicators produced three- and two-factor solutions and we decided to analyze the latter one—extracted components are described as long-term mating and expected future fitness. Environmental harshness was positively related to psychopathy and negatively to expected future fitness. Path analysis revealed that the disinhibition trait mediates the link between the environment and expected future fitness. Analysis also showed adaptive differences between boldness and disinhibition: while both psychopathy traits were negatively associated to long-term mating, boldness was positively related to expected future fitness, in contrast to disinhibition which showed negative associations with this life history measure. Hence, boldness showed the highest adaptive potential. Study results are in line with life history theory in humans and show the heuristic power of applying behavioral ecological framework to the study of psychopathy. (shrink)

One of the most prominent models of psychopathy operationalizes this construct as consisting of four factors: interpersonal, affective, lifestyle and antisocial traits. These traits show different relationship patterns with other constructs, and these relations may differ in men and women. The aim of this study was to investigate whether the relations between psychopathic traits and indicators of emotional distress (depression, anxiety and stress), differ between men and women. Data was collected on 650 students (60% women) at the University of Zagreb. (...) The results of Canonical Correlation Analysis indicated that affective psychopathic traits have adaptive potential and represent a protective factor for experiencing emotional distress, while Lifestyle and Antisocial behavior represent risk factors for emotional distress. Moreover, sex had a moderating role in the relationship between Interpersonal and Lifestyle traits and distress, indicating that psychopathic traits seem to be more adaptive in males, compared to females. (shrink)

Tankersley has provided an interesting collection of data about various groups of antisocial individuals. Is this a paper about the moral reasoning of psychopaths, or is it an attempt to address a philosophical question—whether moral behavior is primarily driven by emotions (moral sentimentalism) or by reasons (moral rationalism)—empirically? I think it attempts a little of both, although I concentrate on the latter. -/- The trouble with much of the literature on psychopathy is the terminological confusion, and Tankersley has not escaped (...) this. Several disciplines, with their own languages, have an interest in antisocial individuals and use similar sounding words in different ways. It is easy to get confused. Doctors make diagnoses. Antisocial (or dissocial) personality disorder is a medical diagnosis, and has a clear, operationalized definition. By virtue of being a disorder, it must result in some impairment in the functioning of the individual. Psychopathy is a psychological construct, not a diagnosis, and attempts to measure (in a reliable and valid way, using the Psychopathy Checklist) aspects of a person's mind particularly relevant to antisocial behavior. Psychopathy and antisocial personality disorder are different approaches to the same natural phenomenon, but they are not coterminous. There are many individuals with antisocial personality disorder who are not psychopaths. There are some individuals who are psychopaths who do not have any medical diagnosis (e.g., the so-called white collar psychopath). Psychopathy is not a subset of antisocial personality disorder (pace Tankersley 2011, and Herpertz and Habermeyer 2004). (shrink)

Recently some have argued that psychopaths might suffer generalised cognitive impairments that affect their capacity for mental time travel. In relation to the past, mental time travel is the capacity to have memories of past episodes in which the agent was personally involved. In relation to the future, mental time travel involves prospection, the capacity to imagine future situations where the agent might be involved. The authors argue that certain studies on the instrumental learning of psychopaths show that, in relation (...) to certain specific situations, these subjects might be impaired in certain capacities for mental time travel. Following Harry Frankfurt, they maintain that moral responsibility requires a capacity to identify with certain desires. This process of identification involves accepting desires in virtue of an evaluation that is sensitive to commitments that stem from previously formed mental states. Therefore, identification relies on some basic capacities of mental time travel. The authors argue that a process of “detachment” from current operative desires is of central importance in the process of identification. They claim that certain experiments concerning the instrumental learning in psychopaths show that, in certain cases, they are incapable to register changes in their situation that determine a lack of detachment from certain current operative motivational states. However, other experiments show that psychopaths, in other circumstances, are capable of “detaching” from certain of their motivational states. These empirical findings allow the authors to argue that the process of identification in psychopathic offenders in certain specific circumstances might be impaired. (shrink)

Recent debates in psychopathy studies have articulated concerns about false-positives in assessment and research sampling. These are pressing concerns for research progress, since scientific quality depends on sample quality, that is, if we wish to study psychopathy we must be certain that the individuals we study are, in fact, psychopaths. Thus, if conventional assessment tools yield substantial false-positives, this would explain why central research is laden with discrepancies and nonreplicable findings. This paper draws on moral psychology in order to develop (...) tentative theory-driven exclusion criteria applicable in research sampling. Implementing standardized procedures to discriminate between research participants has the potential to yield more homogenous and discrete samples, a vital prerequisite for research progress in etiology, epidemiology, and treatment strategies. (shrink)

Many spectacular claims about psychopaths are circulated. This contribution aims at providing the reader with the more complex reality of the phenomenon (or phenomena), and to point to issues of particular interest to philosophers working in moral psychology and moral theory. I first discuss the current evidence regarding psychopaths’ deficient empathy and decision-making skills. I then explore what difference it makes to our thinking whether we regard their deficit dimensionally (as involving abilities that are on or off) and whether we (...) focus on primary or secondary psychopathy. My conclusion is that most grand claims about psychopathy settling long-standing debates in moral philosophy and psychology are overblown, but there is much to be learnt from this disorder when it comes to formulating modern theories of moral psychology. (shrink)

The diagnosis of psychopathic personality disorder has salience for forensic clinical practice. It influences decisions regarding risk, treatability and sentencing, indeed, in certain jurisdictions it serves as an aggravating factor that increases the likelihood of a capital sentence. The concatenation of symptom that is associated with modern conceptions of the disorder can be discerned in early writings, including the book of Psalms. Despite its forensic clinical importance and historical pedigree the concept remains elusive and controverted. In this paper I describe (...) an attempt to map the concept of psychopathic personality disorder—the Comprehensive Assessment of Psychopathic Personality (CAPP). I outline the processes used to create the concept map; I summarise evidence in support of the content validity of the map and describe different operations designed to operationalise the construct. It is only when conceptual clarity is achieved that valid operations and measures can be created. I end with a plea for more carefully considered application of statistical methods; applications that better fit the theoretical questions being posed. (shrink)

There is an ongoing debate regarding the content of psychopathy, especially about the status of antisocial behavior and disinhibition characteristics as core psychopathy features. Psychopathic Personality Traits Scale (PPTS) represents a novel model of psychopathy based on core psychopathy markers such as Interpersonal manipulation, Egocentricity and Affective responsiveness. However, this model presupposes another narrow trait of psychopathy: cognitive responsiveness, which represents a lack of cognitive empathy. Since previous models of psychopathy do not depict this feature as a core psychopathy trait, (...) the goal of this study was to empirically evaluate if the lack of cognitive empathy is a narrow psychopathy trait or its correlate. The research was conducted on a community sample via online study (N=342; Mage=23.7 years; 31% males). Results showed that the correlations between Cognitive responsiveness and other psychopathy features were significantly lower than intercorrelations of other three traits. Factor analysis, conducted on PPTS items, provided a two-factor solution, where Cognitive responsiveness was yielded as a factor separate from other psychopathy indicators. Finally, the exploration of the shared latent space of psychopathy and cognitive empathy resulted in the two-factor solution where psychopathy and the lack of cognitive empathy were extracted as correlated but separate latent variables. The data clearly supported the former model. Research results showed that the lack of cognitive empathy should not be considered an indicator of psychopathy but its correlate. The findings emphasize the need to be cautious in conceptualization of the psychopathy construct. (shrink)

Editorial introduction to the special issue of the European Journal of Analytic Philosophy.

The British National Institute for Health and Clinical Excellence (NICE) has recently (28 January 2009) released new guidelines for the diagnosis, treatment and prevention of the psychiatric category antisocial personality disorder (ASPD). Evident in these recommendations is a broader ambiguity regarding the ontology of ASPD. Although, perhaps, a mundane feature of much of medicine, in this case, ontological uncertainty has significant ethical implications as a product of the profound consequences for an individual categorised with this disorder. This paper argues that (...) in refraining from emphasising uncertainty, NICE risks reifying a controversial category. This is particularly problematical given that the guidelines recommend the identification of individuals “at risk” of raising antisocial children. Although this paper does not argue that NICE is “wrong” in any of its recommendations, more emphasis should have been placed on discussions of the ethical implications of diagnosis and treatment, especially given the multiple uncertainties associated with ASPD. It is proposed that these important issues be examined in more detail in revisions of existing NICE recommendations, and be included in upcoming guidance. This paper thus raises key questions regarding the place and role of ethics within the current and future remit of NICE. (shrink)

It has been argued that a biomarker-informed classification system for antisocial individuals has the potential to overcome many obstacles in current conceptualizations of forensic and psychiatric constructs and promises better targeted treatments. However, some have expressed ethical worries about the social impact of the use of biological information for classification. Many have discussed the ethical and legal issues related to possibilities of using biomarkers for predicting antisocial behaviour. We argue that prediction should not raise the most pressing ethical worries. Instead, (...) issues connected with ‘biologisation’, such as stigmatization and negative effects on self-image, need more consideration. However, we conclude that also in this respect there are no principled ethical objections against the use of biomarkers to guide classification and treatment of adult antisocial individuals. (shrink)

The discussion of whether psychopaths are morally responsible for their behaviour has long taken place in philosophy. In recent years this has moved into scientific and psychiatric investigation. Responsibility and Psychopathy discusses this subject from both the philosophical and scientific disciplines, as well as a legal perspective.

Dominic Murphy in several influential publications has formulated and defended what he calls the strong medical model of mental illness. At the core of this project is the objectivist requirement of classifying mental illness in terms of their aetiologies, preferably characterised by multilevel mechanistic explanations of dysfunctions in neurocomputational processes. We are sympathetic to this project and we devise an argument to support it based on a conception of psychiatric kinds. Murphy has, moreover, maintained that there are some open issues (...) concerning the applicability of his program to antisocial personality disorders and psychopathy. We argue that, as a matter of fact, there are already plausible and well-motivated classificatory proposals for these types of disorders that accommodate well within Murphy's strong medical model. (shrink)

Psychopathy attracts considerable interdisciplinary interest. The idea of a group of people with abnormal morality and interpersonal relations raises important philosophical, legal, and clinical issues. However, before engaging these issues, we ought to examine whether this category is scientifically grounded. We frame the issue in terms of the question whether ‘psychopathy’ designates a natural kind according to the cluster approaches. We argue that currently there is no sufficient evidence for an affirmative answer to this question. Furthermore, we examine three ways (...) of dealing with the category of psychopathy. We could eliminate the category, revise it, or subscribe to a more encompassing account of kinds, which could capture psychopathy as it is currently conceptualized. We argue that while a revision of the category of psychopathy is to be expected with empirical and theoretical advancements, we also emphasize its role in clinical and forensic research that makes it an important pragmatic kind. (shrink)

In the forensic field, psychopathy is a disorder that raises many questions. Indeed, the diagnostic evaluation by the PCL-R offers no opportunity to assess the variability of the disorder on the entire life. However, the dimensional scales used to assess this fluctuation, at least in the medium term. This study helps to validate the CAPP-IRS using the PCL-R with forensic patients.

L’évaluation de la psychopathie reste incontournable tant dans le domaine de l’expertise, de l’orientation, du traitement, que de l’évaluation et la gestion du risque. Le profil psychopathique et le niveau de risque de récidive associé constituent des indicateurs pertinents pour les professionnels de terrain. Cet article se propose de compléter le premier datant de 2011 en apportant des connaissances supplémentaires relatives aux modèles d’évaluation de la psychopathie ainsi qu’un éclairage optimiste sur l’efficacité des traitements auprès d’adultes délinquants. Il décrit, d’une (...) part, les instruments d’évaluation de la psychopathie avec une attention particulière portée aux applications et propositions d’implémentation. D’autre part, il décrit l’importance de spécifier les profils psychopathiques dans l’évaluation des traitements psychologiques auprès de personnes présentant un trouble de la personnalité psychopathique. Enfin, il aborde l’évaluation neuropsychologique auprès de ce type de population. (shrink)

The term “psychopath” has enjoyed wide currency both in popular culture and among specialists in forensic psychiatry. Historians, however, have generally neglected the subject. This essay examines the history of psychopathy in the country that first coined the term, developed the concept, and debated its treatment: Germany. While the notion can be traced to nineteenth-century psychiatric ideas about abnormal, yet not completely pathological, character traits, the figure of the psychopath emerged out of distinctly twentieth-century preoccupations and institutions. The vagueness and (...) plasticity of the diagnosis of psychopathy proved to be one of the keys to its success, as it was embraced and employed by clinicians, researchers, and the mass media, despite attempts by some to curb its use. Within the span of a few decades, the image of the psychopath became one of a perpetual troublemaker, an individual who could not be managed within any institutional setting. By midcentury, psychopaths were no longer seen as simply nosological curiosities; rather, they were spatial problems, individuals whose defiance of institutional routine and attempts at social redemption stood in for an attributed mental status. The history of psychopathy therefore reveals how public dangers and risks can be shaped and defined by institutional limitations. (shrink)

There is growing interest in examining dark personality traits, to better explain malevolent and self-serving behaviour patterns commonly observed in clinical and non-clinical settings. Recently, taxonomies of dark personalities have been developed, along with psychometric tools to measure and delineate between traits including psychopathy, Machiavellianism and narcissism. The extent to which these constructs are distinct or overlapping remains controversial. Psychophysiological research can improve understanding of biological mechanisms contributing to personality that may help to evaluate taxonomies. This study investigated diurnal variations (...) in salivary cortisol (on waking, cortisol awakening response, and at bedtime, over two days) and their relationship to personality traits (Short Dark Triad Scale and IPIP Mini), psychopathology (Depression, Anxiety and Stress Scale; DASS) and quality of life (WHOQOL-BREF) in a non-clinical sample (N=45, 26 females, 19 males, 18-59 years). Dark personality traits correlated with low bedtime cortisol, reduced sleep, depression and poorer quality of life. Hierarchical linear regressions analyses indicated that bedtime cortisol levels significantly accounted for variance in Psychopathy (F(1,39)=5.55, p=.02, R=.52, B=-1.81, 95% CI [-3.37-(-.26)], β=-.33, sr2=.10) and reduced sleep uniquely accounted for variance Machiavellianism (F(2,40)=5.99, p=.01, R=.48, B=1.01, 95% CI [.16-2.02], β=.34, sr2=.11). These data provide preliminary evidence that supports the cortisol hypoarousal hypothesis of Psychopathy and has identified a link between Machiavellianism, sleep-wake cycles, and chronotype. The hypoarousal hypothesis of Psychopathy contends that the hypothalamic-pituitary-adrenal axis is unresponsive to the stress of social engagement. Machiavellianism was predicted by longer days with evidence for an evening chronotype. These findings indicated that the Dark Triad traits have different underlying biological mechanisms that require further exploration. (shrink)

Psychopathy is a personality disorder characterized by emotional deficits and a failure to inhibit impulsive behavior and is often subdivided into “primary” and “secondary” psychopathic subtypes. The maladaptive behavior related to primary psychopathy is thought to reflect constitutional “fearlessness,” while the problematic behavior related to secondary psychopathy is motivated by other factors. The fearlessness observed in psychopathy has often been interpreted as reflecting a fundamental deficit in amygdala function, and previous studies have provided support for a low-fear model of psychopathy. (...) However, many of these studies fail to use appropriate screening procedures, use liberal inclusion criteria, or have used unconventional approaches to assay amygdala function. We measured brain activity with BOLD imaging in primary and secondary psychopaths and non-psychopathic control subjects during Pavlovian fear conditioning. In contrast to the low-fear model, we observed normal fear expression in primary psychopaths. Psychopaths also displayed greater differential BOLD activity in the amygdala relative to matched controls. Inverse patterns of activity were observed in the anterior cingulate cortex (ACC) for primary versus secondary psychopaths. Primary psychopaths exhibited a pattern of activity in the dorsal and ventral ACC consistent with enhanced fear expression, while secondary psychopaths exhibited a pattern of activity in these regions consistent with fear inhibition. These results contradict the low-fear model of psychopathy and suggest that the low fear observed for psychopaths in previous studies may be specific to secondary psychopaths. (shrink)

Neurobiological theories of psychopathy typically include abnormalities in paralimbic circuits, and a neurobiological profile of paralimbic dysfunction in increasingly invoked in applied legal settings. The current study systematically evaluated whether sMRI and fMRI findings in PCL-R defined psychopaths suggest paralimbic dysfunction. Our review indicates diffuse and variable neural correlates of psychopathy, with numerous issues complicating the interpretation of these heterogeneous data. Our review also extends previous discussions concerning how this heterogeneity may be related to sample characteristics, methodological variations, and statistical (...) analyses. To elucidate the neural correlates of psychopathy, researchers may need to clarify the relationship between psychopathy and co-occurring conditions (such as substance use disorders) both conceptually and methodologically. Our review also indicates that caution is warranted when introducing these data in applied contexts. (shrink)

Antisocial behavior is a heterogeneous construct that can be divided into subtypes, such as antisocial personality and psychopathy. The adverse consequences of antisocial behavior produce great burden for the perpetrators, victims, family members, and for society at-large. The pervasiveness of antisocial behavior highlights the importance of precisely characterizing subtypes of antisocial individuals and identifying specific factors that are etiologically related to such behaviors to inform the development of targeted treatments. The goals of the current review are to briefly summarize research (...) on the operationalization and assessment of antisocial personality and psychopathy; to provide an overview of several existing treatments with the potential to influence antisocial personality and psychopathy; and to present an approach that integrates and uses biological and cognitive measures as starting points to more precisely characterize and treat these individuals. A focus on integrating factors at multiple levels of analysis can uncover person-specific characteristics and highlight potential targets for treatment to alleviate the burden caused by antisocial behavior. (shrink)

Recent studies suggest that psychopathy may be associated with dysfunction in the neural circuitry supporting both threat- and reward-related processes. However, these studies have involved small samples and often focused on extreme groups. Thus, it is unclear to what extent current findings may generalize to psychopathic traits in the general population. Furthermore, no studies have systematically and simultaneously assessed associations between distinct psychopathy facets and both threat- and reward-related brain function in the same sample of participants. Here, we examined the (...) relationship between threat-related amygdala reactivity and reward-related ventral striatum (VS) reactivity and variation in four facets of self-reported psychopathy in a sample of 200 young adults. Path models indicated that amygdala reactivity to fearful facial expressions is negatively associated with the interpersonal facet of psychopathy, whereas amygdala reactivity to angry facial expressions is positively associated with the lifestyle facet. Furthermore, these models revealed that differential VS reactivity to positive versus negative feedback is negatively associated with the lifestyle facet. There was suggestive evidence for gender-specific patterns of association between brain function and psychopathy facets. Our findings are the first to document differential associations between both threat- and reward-related neural processes and distinct facets of psychopathy and thus provide a more comprehensive picture of the pattern of neural vulnerabilities that may predispose to maladaptive outcomes associated with psychopathy. (shrink)

Mealey's analysis of secondary sociopathy has much in common with Belsky, Steinberg, and Draper's (1991) evolutionary theory of socialization. Both draw attention to the potential influence of early rearing in the promotion of a cold, detached, manipulative, and opportunistic style of relating to others and, in so doing, raise the question of whether secondary sociopathy represents a facultative reproductive strategy.

Recently, attempts have been made to determine the evolutionary status of psychopathy. However, there is still a gap in empirical literature regarding the connection between psychopathy and fitness. In the present study, we explored the relations between the four-factor model of psychopathy and reproductive success as a fitness indicator in a sample of male convicts (N = 181). Direct relations were analyzed, together with the interaction effects between psychopathy and family risk factors (presence of criminality, substance abuse, and maltreatment in (...) participants’ families). Basic regression models showed that the facet of interpersonal style is positively related to fitness, while other psychopathic characteristics had a negative connection with the criterion measure. Additionally, we found three significant interactions, which further clarified the relation between psychopathy and reproductive success. One of the interactions showed that affective traits can facilitate fertility in unfavorable environmental conditions. Results support a hypothesis of a possible adaptive function of psychopathy, broaden the concept of “successful psychopathy,” and confirm a view of psychopathy as a heterogeneous and complex construct, consisting of facets with distinct content. (shrink)

Philosophers typically rely on empirical data when they comment on psychopaths’ moral responsibility. Many argue that psychopaths, as per the data, suffer from significant impairments in the precursors of moral reasoning and behavior, and therefore they should not be held morally responsible for their actions. However, careful analysis of these studies shows that this view is mistaken. We discuss how several philosophers— perhaps following the lead of social scientists—have systematically misinterpreted or simplified psychological data to support their conclusions about psychopaths’ (...) responsibility. We discuss four data sources: Case studies, the moral/conventional distinction task, fear conditioning, and facial affect recognition experiments. We examine how errors in the interpretation of these data have influenced, for the worse, the moral responsibility discourse. We recommend that philosophers exercise more caution in drawing conclusions from the psychological data on psychopaths. (shrink)

We used text analysis software to examine the linguistic features of the speech of 21 psychopathic and 45 other offenders during the interview part of a Psychopathy Checklist–Revised (PCL-R) assessment. Regression analysis was run on the linguistic categories to determine which were the best predictors of psychopathy scores. Relative to the other offenders, psychopaths used more disfluencies (“you know”) and personal pronouns, made fewer references to other people (e.g., personal names, family), and were also less emotionally expressive. In particular, a (...) low frequency of anxiety-related words and a more frequent use of personal pronouns were the most significant predictors of PCL-R scores and accounted for 25% of the variance. These findings for the first time afford a unique glimpse into the language produced during the PCL-R assessment interview. In addition to enhancing our understanding of psychopathic speech, these results may provide interviewers additional insights relevant to the assessment and therapeutic process. (shrink)

In the first meta-analytic review of the response modulation hypothesis (RMH), an attention-based model for understanding the etiology of psychopathy, Smith and Lilienfeld (2015) report that the average effect size for response modulation deficits in psychopathic individuals fell in the small to medium range (r = .20; p. < .001, d = .41). Moreover, support for the RMH extended to both psychopathy dimensions, across diverse assessments and settings, and spanned child, adult, female, and male samples. The analysis also revealed good (...) empirical support for a central tenet of the RMH, namely that response modulation deficits are not limited to the processing of threat or other emotion stimuli. Unfortunately, the Smith and Lilienfeld meta-analysis contains several theoretical and quantitative problems, including failing to distinguish adequately between the tasks used to evaluate RMH predictions and the theory itself, confusion regarding the evolution of the RMH and its impact on effect sizes, misinterpretations of RMH predictions and evidence regarding dominant response sets, passive avoidance, and primary task performance, and biased statements promoting the low fear model over the RMH. In this response, we endeavor to reduce misunderstanding by addressing the most salient issues, with the hope that increasing clarity will sharpen the focus of future research and result in more valid assessments of the RMH. (shrink)

Although risky decision-making has been posited to contribute to the maladaptive behavior of individuals with psychopathic tendencies, the performance of psychopathic groups on a common task of risky decision-making, the Iowa Gambling Task (IGT; Bechara, Damasio, Damasio, & Anderson, 1994), has been equivocal. Different aspects of psychopathy (personality traits, antisocial deviance) and/or moderating variables may help to explain these inconsistent findings. In a sample of college students (N = 129, age 18–27), we examined the relationship between primary and secondary psychopathic (...) features and IGT performance. A measure of impulsivity was included to investigate its potential as a moderator. In a joint model including main effects and interactions between primary psychopathy, secondary psychopathy and impulsivity, only secondary psychopathy was significantly related to risky IGT performance, and this effect was not moderated by the other variables. This finding supports the growing literature suggesting that secondary psychopathy is a better predictor of decision-making problems than the primary psychopathic personality traits of lack of empathy and remorselessness. (shrink)

In a recent study, we found a negative association between psychopathy and violence against genetic relatives. We interpreted this result as a form of nepotism and argued that it failed to support the hypothesis that psychopathy is a mental disorder, suggesting instead that it supports the hypothesis that psychopathy is an evolved life history strategy. This interpretation and subsequent arguments have been challenged in a number of ways. Here, we identify several misunderstandings regarding the harmful dysfunction definition of mental disorder (...) as it applies to psychopathy and regarding the meaning of nepotism. Furthermore, we examine the evidence provided by our critics that psychopathy is associated with other disorders, and we offer a comment on their alternative model of psychopathy. We conclude that there remains little evidence that psychopathy is the product of dysfunctional mechanisms. (shrink)

Psychopaths routinely disregard social norms by engaging in selfish, antisocial, often violent behavior. Commonly characterized as mentally disordered, recent evidence suggests that psychopaths are executing a well-functioning, if unscrupulous strategy that historically increased reproductive success at the expense of others. Natural selection ought to have favored strategies that spared close kin from harm, however, because actions affecting the fitness of genetic relatives contribute to an individual’s inclusive fitness. Conversely, there is evidence that mental disorders can disrupt psychological mechanisms designed to (...) protect relatives. Thus, mental disorder and adaptation accounts of psychopathy generate opposing hypotheses: psychopathy should be associated with an increase in the victimization of kin in the former account but not in the latter. Contrary to the mental disorder hypothesis, we show here in a sample of 289 violent offenders that variation in psychopathy predicts a decrease in the genetic relatedness of victims to offenders; that is, psychopathy predicts an increased likelihood of harming non-relatives. Because nepotistic inhibition in violence may be caused by dispersal or kin discrimination, we examined the effects of psychopathy on (1) the dispersal of offenders and their kin and (2) sexual assault frequency (as a window on kin discrimination). Although psychopathy was negatively associated with coresidence with kin and positively associated with the commission of sexual assault, it remained negatively associated with the genetic relatedness of victims to offenders after removing cases of offenders who had coresided with kin and cases of sexual assault from the analyses. These results stand in contrast to models positing psychopathy as a pathology, and provide support for the hypothesis that psychopathy reflects an evolutionary strategy largely favoring the exploitation of non-relatives. (shrink)

Background: Individuals with psychopathic traits demonstrate an attenuated emotional response to aversive stimuli. However, recent evidence suggests heterogeneity in emotional reactivity among individuals with psychopathic or callous-unemotional (CU) traits, the emotional detachment dimension of psychopathy. We hypothesize that primary variants of psychopathy will respond with blunted affect to negatively valenced stimuli, whereas individuals marked with histories of childhood trauma/maltreatment exposure, known as secondary variants, will display heightened emotional reactivity. To test this hypothesis, the present study examined fear-potentiated startle between psychopathy (...) variants while viewing aversive, pleasant, and neutral scenes. Method: 238 incarcerated adolescent (M age = 16.8, SD = 1.11 years) boys completed a picture-startle paradigm and self-report questionnaires assessing CU traits, antisocial-aggressive behavior, and maltreatment. Results: Latent profile analyses identified four classes; primary variants (high CU traits, high aggression, low maltreatment; n = 46), secondary variants (high CU traits, high aggression, high maltreatment; n = 42), and two nonpsychopathic groups differentiated on maltreatment experience (n = 148). Findings from an ANOVA comparing identified groups on startle amplitude difference scores (i.e., aversive-neutral) suggested a main effect for group, F(3,196)=8.91, p<.001, η2 = .12. Primary variants of juvenile psychopathy displayed reduced startle potentiation to aversive images (threat and victim scenes), whereas secondary variants distinguished by high levels of childhood maltreatment did not. Conclusions: Findings add to a rapidly growing body of literature supporting the possibility of multiple developmental pathways to psychopathy (i.e., equifinality), and extend it by finding support for divergent potential biomarkers between primary and secondary psychopathy variants. (shrink)

The aim of this paper is to analyze, from a philosophical perspective, the scientific robustness of the construct of psychopathy as measured by the Psychopathy Checklist Revised that was developed by Robert Hare (1991; 2003). The scientific robustness and validity of classifications are topics of many debates in philosophy of science and philosophy of psychiatry more specifically. The main problem consists in establishing whether scientific classifications reflect natural kinds where the concept of a natural kind refers to the existence of (...) some objective divisions in nature that do not depend exclusively on subjective judgments of the classifier. The construct of psychopathy is especially interesting since the diagnosis of psychopathy has substantial social consequences. In the light of the recent debates regarding the problem of natural kinds in philosophy of psychiatry, we advocate the following distinction between two types of scientific classifications: natural and practical kinds. Natural kinds refer to those categories that are united by common causal mechanisms or properties. Practical kinds refer to categories that fulfill some practical classificatory goals such as prediction. We argue that the construct of psychopathy can fulfill the role of a practical kind. In addition, we contend that our current scientific knowledge about psychopathy does not allow us to conclude that this category is a natural kind. (shrink)

Some aspects of executive function are thought to be dysfunctional in psychopathic individuals. We administered a small battery of neuropsychological tests (spatial alternation task, object alternation task, and Porteus Maze) to two samples of college students and obtained a measure of psychopathy via a self-report questionnaire. Psychopathic traits were related to the tests of object alternation and Porteus Maze but not to the spatial alternation task. Our results support the hypothesis of orbitofrontal cortex (OFC) dysfunction with sparing of dorsolateral prefrontal (...) cortex (DLPFC) in psychopathy and provide a downward extension of this theory to sub-clinical levels of psychopathy. (shrink)

Psychopathy is characterized by diverse indicators. Clinical accounts have emphasized 3 distinct facets: interpersonal, affective, and behavioral. Research using the Psychopathy Checklist–Revised (PCL–R), however, has emphasized a 2-factor model. A review of the literature on the PCL–R and related measures of psychopathy, together with confirmatory factor analysis of PCL–R data from North American participants, indicates that the 2-factor model cannot be sustained. A 3-factor hierarchical model was developed in which a coherent superordinate factor, Psychopathy, is underpinned by 3 factors: Arrogant (...) and Deceitful Interpersonal Style, Deficient Affective Experience, and Impulsive and Irresponsible Behavioral Style. The model was cross-validated on North American and Scottish PCL–R data, Psychopathy Screening Version data, and data derived from the Diagnostic and Statistical Manual of Mental Disorders (4th ed.; American Psychiatric Association, 1994) antisocial personality disorder field trial. (shrink)

Identification of factors that predict recurrent antisocial behavior is integral to the social sciences, criminal justice procedures, and the effective treatment of high-risk individuals. Here we show that error-related brain activity elicited during performance of an in- hibitory task prospectively predicted subsequent rearrest among adult offenders within 4 y of release (N =96). The odds that an offender with relatively low anterior cingulate activity would be rearrested were approximately double that of an offender with high activity in this region, holding (...) constant other observed risk factors. These results suggest a potential neurocognitive biomarker for persistent antisocial behavior. (shrink)

Psychopathy refers to a range of complex behaviors and personality traits, including callousness and antisocial behavior, typically studied in criminal populations. Recent studies have used self-reports to examine psychopathic traits among noncriminal samples. The goal of the current study was to examine the underlying factor structure of the Self-Report of Psychopathy Scale–Short Form (SRP-SF) across complementary samples and examine the impact of gender on factor structure. We examined the structure of the SRP-SF among 2,554 young adults from three undergraduate samples (...) and a high-risk young adult sample. Using confirmatory factor analysis, a four-correlated factor model and a four-bifactor model showed good fit to the data. Evidence of weak invariance was found for both models across gender. These findings highlight that the SRP-SF is a useful measure of low-level psychopathic traits in noncriminal samples, although the underlying factor structure may not fully translate across men and women. (shrink)

The current research applied a mid-level evolutionary theory that has been successfully employed across numerous animal species—life history theory—in an attempt to understand the Dark Triad personality trait cluster (narcissism, psychopathy, and Machiavellianism). In Study 1 (N = 246), a measure of life history strategy was correlated with psychopathy, but unexpectedly with neither Machiavellianism nor narcissism. Study 2 (N = 321) replicated this overall pattern of results using longer, traditional measures of the Dark Triad traits and alternative, future-discounting indicators of (...) life history strategy (a smaller-sooner, larger-later monetary dilemma and self-reported risk-taking behaviors). Additional findings suggested two sources of shared variance across the Dark Triad traits: confidence in predicting future outcomes and openness to short-term mating. (shrink)

Although both reflect a self-centered, antisocial personality, psychopathy and low self-control have seldom been examined together. This study cre­ated scales reflecting both common and unique elements of both constructs, investigated their factor structure, and explained variance in delinquency. Four alternative hypotheses were tested: that low self control and psychop­athy constitute a single construct, that they constitute primary and secon­dary psychopathy or interpersonal and intrapersonal traits, or that they constitute Antisociality - the tendency to perform antisocial acts- and (low) Self-Direction-the tendency (...) to act in one's long-term benefit. Models con­taining Antisociality and Self-Direction fit better than alternatives and ac­counted for substantial variance in offending. (shrink)

This study sought to replicate and extend Hall and colleagues’ (2014) work on developing and validating scales from the Psychopathic Personality Inventory (PPI) to index the triarchic psychopathy constructs of boldness, meanness, and disinhibition. This study also extended Hall et al.’s initial findings by including the PPI Revised (PPI–R). A community sample (n D 240) weighted toward subclinical psychopathy traits and a male prison sample (n D 160) were used for this study. Results indicated that PPI–Boldness, PPI–Meanness, and PPI–Disinhibition converged (...) with other psychopathy, personality, and behavioral criteria in ways conceptually expected from the perspective of the triarchic psychopathy model, including showing very strong convergent and discriminant validity with their Triarchic Psychopathy Measure counterparts. These findings further enhance the utility of the PPI and PPI–R in measuring these constructs. (shrink)

Psychopathy is a personality disorder characterized by interpersonal manipulation and callousness, and reckless and impulsive antisocial behavior. It is often seen as a disorder in which profound emotional disturbances lead to antisocial behavior. A lack of fear in particular has been proposed as an etiologically salient factor. In this review, we employ a conceptual model in which fear is parsed into separate subcomponents. Important historical conceptualizations of psychopathy, the neuroscientific and empirical evidence for fear deficits in psychopathy are compared against (...) this model. The empirical evidence is also subjected to a meta-analysis. We conclude that most studies have used the term "fear" generically, amassing different methods and levels of measurement under the umbrella term "fear." Unlike earlier claims that psychopathy is related to general fearlessness, we show there is evidence that psychopathic individuals have deficits in threat detection and responsivity, but that the evidence for reduced subjective experience of fear in psychopathy is far less compelling. (shrink)

In individuals with psychopathy, the presence of emotional stimuli implicates a relatively weak distraction from performing cognitive tasks. This study assessed whether there is also a relationship between specific combinations of psychopathy-related traits present in the general population and sensitivity of cognitive processing to distraction by emotional stimuli. The participants (N = 80) were screened for these traits using the Psychopathic Personality Inventory and performed a classification task in the presence of pictures with a low or high arousal value. Emotional (...) distraction (ED) was operationalized in terms of the response time on trials with high- versus low-arousal pictures. The interaction between affective-interpersonal and impulsive-antisocial traits was significantly associated with ED. This interaction reflected the fact that the association between affective-interpersonal traits (specifically fearlessness) and magnitude of ED was negative for individuals with relatively weak impulsive-antisocial traits (specifically carefree nonplanfulness) but positive for those with relatively strong impulsive-antisocial traits. These results suggest significant differences in vulnerability to ED as a function of the strength of specific combinations of psychopathy-related traits in non-clinical samples. (shrink)

Neuropsychological deficits in executive functions(EF)have been linked to antisocial behavior and considered to be cardinal to the onset and persistence of severe antisocial and aggressive behavior. However, when psychopathy is present, prior evidence suggests that the dorsolateral prefrontal cortex is unaffected leading to intact EF. Ninety-one male offenders with Antisocial Personality Disorder(ASPD) and 24 controls completed the Wisconsin Card Sorting Test(WCST). ASPD individuals were grouped in three categories according to Psychopathy Checklist-Revised (PCL-R)scores(low, medium and high). We hypothesized that ASPD offenders (...) with high PCL-R scores will not differ from healthy controls in EF and will show better EF performance in comparison with subjects with low PCL-R scores. Results showed that ASPD offenders with low PCL-R scores committed more perseverative errors and responses than controls and offenders with high PCL-R scores, which did not differ from healthy controls. Moreover, scores on Factor 1 and the interpersonal facet of the PCL-R were predictors of better WCST performance. Our results suggest a modulatory role of psychopathy in the cognitive performance of ASPD offenders, and provide further evidence supporting that offenders with ASPD and psychopathy are characterized by a cognitive profile different from those with ASPD without psychopathy. (shrink)