Coercive and precocious sexuality as a fundamental aspect of psychopathy

Risky Sexual Behavior and Psychopathy: Testing the Relationship in a Non-Clinical Sample of Young Adults in Hong Kong

This study aims to investigate the relationship between risky sexual behavior (RSB) and psychopathy in a non-clinical sample of 714 Hong Kong adults, shedding light on sex differences. Our findings reveal that males exhibit significantly higher mean levels of RSB (general, penetrative, and nonpenetrative), as well as egocentric (Factor 1) and callous (Factor 3) traits of psychopathy, along with increased sexual desire compared to females. Regression analyses indicate that elevated levels of antisociality (Factor 2) and callousness (Factor 3) traits of psychopathy, along with sexual desire, emerge as significant risk factors for engaging in general, penetrative, and nonpenetrative RSB. Intriguingly, higher age and being in a long-term relationship are associated with RSB. The implications of this study suggest potential avenues for reducing, if not entirely preventing, the inclination to engage in RSB in the presence of psychopathic traits.

Men's Psychopathy and Mating Effort in Intimate Relationships: Links with Jealousy and Sexual Coercion

Psychopathic men sometimes direct sexual aggression toward prospective female partners (e.g., using sexually aggressive behavior on a first date) and such behavior may be indicative of a high mating effort strategy. Less research has investigated the role of psychopathy in men's use of sexually coercive behaviors in their intimate relationships (e.g., sexual aggression directed toward one's long-term romantic partner) or the relationship processes that might facilitate such behavior. The present study surveyed 143 heterosexual dyads to assess men's psychopathic traits and their relation to self-reports and partner-reports of men's jealousy and partner sexual coercion. Results across informant models showed that men's psychopathy was associated with higher suspicious jealousy and partner sexual coercion. Suspicious jealousy also indirectly linked men's psychopathic traits with engaging in partner sexual coercion. The findings provide novel insights using dyadic data and suggest that both psychopathy and jealousy are important for men's engagement in partner sexual coercion.

PSYCHOPATHY AND RISKY SEXUAL BEHAVIOR IN INCARCERATED WOMEN

To date, very few studies have explored the association between psychopathic traits and risky sexual behavior (RSB) among women. Here, we investigated this relationship in a sample of 137 incarcerated women. Psychopathic traits were assessed via the Hare Psychopathy Checklist-Revised (PCL-R) and lifetime RSB measures, including number of lifetime sexual partners, frequency of engaging in sexual intercourse while intoxicated, and frequency of forgoing protection (e.g., condom usage) during sexual intercourse, were assessed through self-report. PCL-R Facet 3 scores (assessing lifestyle psychopathic traits) were associated with an increased frequency of engaging in sexual intercourse while intoxicated. In addition, women scoring high on the PCL-R were more likely to engage in sexual intercourse while intoxicated compared with a previously collected sample of men scoring high on the PCL-R. The results obtained in the current study help improve our understanding of the association between psychopathic traits and RSB among women.

Is it good to be bad? An evolutionary analysis of the adaptive potential of psychopathic traits

Although psychopathy is widely conceptualised as a mental disorder, some researchers question the maladaptive nature of psychopathy, and argue that it might be advantageous from an evolutionary point of view. According to this view, psychopathy can be seen as an evolutionary adaptative strategy that relies on deception and manipulation to gain short-term reproductive benefits. Psychopathy is also identified as a fast life strategy in response to early life stress and an adaptation to harsh environments. This paper investigates the evidence that psychopathic traits are adaptive, while also addressing the limitations of current evolutionary models of psychopathy based on frequency-dependent selection and life history theory. We review recent studies on the fitness correlates of psychopathy and find that psychopathic traits present potential adaptive trade-offs between fertility and mortality, and offspring quantity and quality. On a proximate level, individual differences in stress reactivity and environmental risk factors in early development predispose to psychopathy through gene-environment interactions. We propose that environmental, developmental, social and cultural factors can mediate the relationship between psychopathic traits and fitness and therefore should be considered to make accurate predictions on the adaptive potential of psychopathy. We end by outlining gaps in the literature and making recommendations for future evolutionary research on psychopathy.

Filicide as a cultural practice in Ghana: The qualitative understanding of a family tragedy and its implications for child protection practice

BACKGROUND

Contrary to evidence from the Western literature, cases of filicide in Ghana are mostly unreported because they are rooted in cultural practices and hidden from the general public.

OBJECTIVE

The purpose of this study was to explore the cultural context of filicide in a rural community. Particularly, to provide an understanding of the spirit child (SC) phenomenon, how the killing of a SC is performed and to provide a general understanding of filicide within a particular context.

PARTICIPANTS AND SETTING

Four relatives of a family that engaged in a filicide incident took part in the study. The interviews were conducted in a rural community in Ghana where the incident occurred.

METHODS

Short written narratives were used to explore the experiences and perceptions of relatives whose family engaged in filicide.

RESULTS

Children with severe deformities are likely to be associated with matters of divinity which gives way for the conceptualization of the SC and its attendant filicide. The findings highlight the critical role of traditional healers in rural communities and the consequences of strong community beliefs and expectations that influence parents to commit filicide.

CONCLUSION

The study provides directions for child protection workers to address the stigma parents face for having children with severe deformities and to provide education on child welfare legislation.

The Dark Triad and Sexual Assertiveness Predict Sexual Coercion Differently in Men and Women

Sexual coercion is a global problem that has been studied widely with regard to various characteristics of the perpetrators. The Dark Triad of personality (i.e., narcissism, Machiavellianism, and primary and secondary psychopathy) has been indicated as an important predictor of coercive cognitions and behaviors. In this study, we report findings of an online study (N = 208), exploring the relationship between sexual coercion, the Dark Triad, and sexual assertiveness (i.e., strategies for achieving sexual autonomy). We found that the Dark Triad was a stronger predictor of sexual coercion in men than in women. In men, all the Dark Triad components were significantly, positively correlated with sexual coercion, and narcissism and Machiavellianism had significant, negative correlations with sexual assertiveness. In women, only narcissism had a significant, positive correlation with sexual coercion, and the Dark Triad traits were not correlated with sexual assertiveness. In regression analyses, controlling for shared variance between the predictor variables, high secondary psychopathy, and low sexual assertiveness emerged as significant predictors of coercion in men. Only narcissism was a significant positive predictor in women. We discuss the results with a reference to evolutionary Life History theory.

Longitudinal Associations Between Primary and Secondary Psychopathic Traits, Delinquency, and Current Dating Status in Adolescence

Many have examined the desirability and mate competition tactics of adults higher on psychopathy using cross-sectional data, but few have studied the longitudinal associations between the lower-order factors of psychopathy (e.g., primary and secondary psychopathy) with indices of mating behavior in adolescents. More work is also needed to unravel how psychopathic youth outcompete rivals for mates. Delinquency has long been associated with dating and sexual behavior in adolescents, which may help to explain the competitive success of youth higher in psychopathic traits in vying for mates. We used cross-lagged panel modeling with three waves of data from a randomly drawn sample of 514 Canadian adolescents who provided annual self-reports of primary and secondary psychopathy, delinquency, and dating involvement from Grades 10 to 12 (15-18 years of age). Constructs were temporally stable. Secondary psychopathy and delinquency had positive within-time correlations with current dating status in Grade 10. A cross-lagged pathway from delinquency to dating involvement was supported from Grade 10 to 11, which replicated from Grade 11 to 12. However, this effect was specific to boys and not girls. An indirect effect also emerged whereby secondary psychopathy in Grade 10 increased the likelihood of being in a dating relationship in Grade 12 via heightened delinquency in Grade 11.

Is Psychopathy a Mental Disorder or an Adaptation? Evidence From a Meta-Analysis of the Association Between Psychopathy and Handedness

Psychopathy has historically been conceptualized as a mental disorder, but there is growing evidence that it may instead be an alternative, adaptive life history strategy designed by natural selection. Although the etiology of mental disorders is not fully understood, one likely contributor is perturbations affecting neurodevelopment. Nonright-handedness is a sign of such perturbations, and therefore can be used to test these competing models. If psychopathy is a mental disorder, psychopaths should show elevated rates of nonright-handedness. However, an adaptive strategy perspective expects psychopaths to be neurologically healthy and therefore predicts typical rates of nonright-handedness. We meta-analyzed 16 studies that investigated the association between psychopathy and handedness in various populations. There was no difference in the rates of nonright-handedness between community participants high and low in psychopathy. Furthermore, there was no difference between psychopathic and nonpsychopathic offenders in rates of nonright-handedness, though there was a tendency for offenders scoring higher on the Interpersonal/Affective dimension of psychopathy to have lower rates of nonright-handedness, and for offenders scoring higher on the Behavioral dimension of psychopathy to have higher rates of nonright-handedness. Lastly, there was no difference in rates of nonright-handedness between psychopathic and nonpsychopathic mental health patients. Thus, our results fail to support the mental disorder model and partly support the adaptive strategy model. We discuss limitations of the meta-analysis and implications for theories of the origins of psychopathy.

Psychopathic Traits and Sexual Coercion Against Relationship Partners in Men and Women

The present study examined the relationships between psychopathic traits, gender, and sexual coercion perpetration in the specific context of intimate partner relationships. Community-dwelling adult men and women with recent criminal or substance-use histories (N = 300) completed self-report measures of psychopathic personality traits (interpersonal, affective, lifestyle, and antisocial facets), sexual coercion perpetrated within their most recent relationship, and other relevant behaviors including physical intimate partner violence perpetration and sexual coercion victimization. Results of regression analyses showed that the relationship between psychopathic trait facets and sexual coercion was moderated by gender, with effects varying based on level of coercion severity. Specifically, women who showed high levels of interpersonal psychopathic traits (superficial charm, social dominance) were more likely to engage in any sexual coercion and minor severity sexual coercion than women with low levels of interpersonal traits. For severe coercion, women who showed low levels of affective psychopathic traits (coldness, lack of empathy) or high levels of antisocial psychopathic traits (aggressiveness, criminality) were more likely to be sexually coercive than other women. Relationships between the four psychopathic trait facets and sexual coercion were more modest and nonsignificant for men at any level of coercion severity. Results are discussed in the context of sociocultural factors that may influence the role of psychopathic traits on sexual coercion as a function of gender and relationship contexts, including traditional sexual scripts, the cultural role of women as sexual gatekeepers, and beliefs about token resistance.

Situational and Dispositional Determinants of College Men's Perception of Women's Sexual Desire and Consent to Sex: A Factorial Vignette Analysis

Sexual victimization of women by men on college campuses is a growing societal concern, with research identifying a host of situational and characterological factors that may predict men's likelihood to engage in sexual misconduct. In the present study, we examined the relative contribution and potential interplay of these various determinants on college men's perceptions of women's sexual desire and consent in hypothetical dating scenarios depicting a sexual interaction. We found that the men (N = 145) in this sample (a) conflated sexual desire with consent, (b) varied their appraisals of consent and desire depending on whether and how the woman in the vignette communicated consent or refusal, (c) perceived higher levels of consent if the man in the vignette had intercourse with the woman previously and as a function of escalating sexual intimacy in the ongoing interaction, (d) endorsed higher levels of perceived desire and consent across situations if they more strongly held rape-supportive attitudes, and (e) moderated their association between situational factors and perceptions of a woman's sexual intentions based on their endorsement of rape myths and a hypermasculine ideology. We conclude that efforts to prevent sexual violence among college students may benefit from being modeled on our findings that some men are likelier to infer consent regardless of the situation, that specific situational factors can foster misperceptions of consent across men in general, and that certain individuals in particular situations may pose the greatest risk for sexual misconduct.

The Dark Tetrad and Male Clients of Female Sex Work

Many scholars have investigated the attitudes, beliefs, motives, and behavior of male clients of female sex workers. However, few have examined individual differences in major dimensions of personality expressed by men who purchase prostitution compared to those who do not. Although several evolutionary psychologists have studied prostitution and those involved in sex work, to our knowledge, none have explicitly considered the utility of an evolutionary personality perspective in trying to understand why particular men pay for sex. In the current mini-review, following other researchers, prostitution is described principally as a form of short-term mating sought primarily by men. We argue that the socially aversive traits embodying the Dark Tetrad (narcissism, Machiavellianism, psychopathy, and sadism) may characterize certain male clients of female sex workers, particularly those consumers expressing the motives of desiring exciting and novel sex with women who are treated with contempt, perceiving prostitution in a business-like manner with little emotional involvement, and seeking to dominate and control sex workers who are viewed as vulnerable and subservient. The traits of the tetrad may also be more prevalent among men who purchase sex from female sex workers in outdoor (e.g., street prostitution) in comparison to indoor settings (e.g., escort agencies).

Dimensions over categories: a meta-analysis of taxometric research

Taxometric procedures have been used extensively to investigate whether individual differences in personality and psychopathology are latently dimensional or categorical ('taxonic'). We report the first meta-analysis of taxometric research, examining 317 findings drawn from 183 articles that employed an index of the comparative fit of observed data to dimensional and taxonic data simulations. Findings supporting dimensional models outnumbered those supporting taxonic models five to one. There were systematic differences among 17 construct domains in support for the two models, but psychopathology was no more likely to generate taxonic findings than normal variation (i.e. individual differences in personality, response styles, gender, and sexuality). No content domain showed aggregate support for the taxonic model. Six variables - alcohol use disorder, intermittent explosive disorder, problem gambling, autism, suicide risk, and pedophilia - emerged as the most plausible taxon candidates based on a preponderance of independently replicated findings. We also compared the 317 meta-analyzed findings to 185 additional taxometric findings from 96 articles that did not employ the comparative fit index. Studies that used the index were 4.88 times more likely to generate dimensional findings than those that did not after controlling for construct domain, implying that many taxonic findings obtained before the popularization of simulation-based techniques are spurious. The meta-analytic findings support the conclusion that the great majority of psychological differences between people are latently continuous, and that psychopathology is no exception.

An exploration of individual differences in a sample of youth charged with violent sexual and non-sexual crimes

Youth who engage in violent crime, including sexual offences, remain understudied. Research conducted on adults suggests that factors linked to antisocial and violent behaviour may enhance the current understanding of sexual offences. These factors include a consideration of how dark personality traits (such as psychopathy) and childhood maltreatment may inform the likelihood of sexual offending. Utilizing a sample of juvenile alleged violent offenders (n = 113), the present study examines the construct of adolescent psychopathy, with abuse as a potential moderator, in relation to offence perpetration. Contrary to some of the literature on adults, the findings indicate that neither psychopathy nor experience of abuse differentiates sexual from non-sexual violent offenders. They also suggest that scoring higher on psychopathy relates to violence more broadly. The importance of tailored programming for youth who may be at risk of offending or who require treatment in the justice system is explored.

Psychopathic Traits and the Cheater-Hawk Hypothesis

The present study was a direct test of the cheater-hawk hypothesis which argues that psychopathy is related to two potentially adaptive interpersonal strategies: cheating and aggression. As expected, the measures of cheater and hawk behaviors comprised a single factor, according to a maximum-likelihood factor analysis. As hypothesized, psychopathic traits exhibited large positive correlations with measures of both cheater (entitlement, exploitiveness, and short-term mating orientation) and hawk (vengeance and aggression) behaviors. Furthermore, psychopathic traits were associated with the tendency of using individualistic and competitive tactics in an altruism game and being less likely to act in a prosocial manner. Finally, scores on the combined-cheater hawk variable were significantly correlated with psychopathic traits. As hypothesized, individuals scoring high on Factor 1 of psychopathy were more likely to utilize behaviors and strategies associated with the cheater-hawk designation, whether or not they scored high on Factor 2 of psychopathy. In general, the findings support the conceptualization that psychopathy represents a fast life-history strategy characterized by seeking personal gain over others, including exploitiveness (cheater), aggression (hawk), and risk taking. Results also indicate that cheater and hawk behaviors are part of a single strategy more often employed by those higher on psychopathic traits. Implications for treatment success are discussed.

Early life predictors of callous-unemotional and psychopathic traits

Psychopathy is a disorder that occurs primarily in males. Offenders with psychopathic traits are responsible for a disproportionate amount of crime in society, particularly violent crime. Early childhood is a time when individual differences in empathy and guilt-key indicators of the construct of psychopathy-are first evident. A growing number of longitudinal studies have begun to investigate how factors in infancy and early childhood predict psychopathic-like traits in later childhood, adolescence, and adulthood. These studies have suggested that parenting styles during infancy (parental sensitivity, maternal harsh intrusion, commenting on the emotional state of the child) as well as attachment styles are predictive of later psychopathic-like traits. In addition, child characteristics such as temperament and the functioning of biological systems such as the autonomic nervous system and hypothalamic-pituitary-adrenal axis are predictive. Overall, studies have suggested that at least some of the origins of psychopathic traits are present in infancy and early childhood, which is consistent with the perspective of psychopathy as a neurodevelopmental disorder. A recent evolutionary-developmental model provides hypotheses regarding how psychopathy may develop and why it is more common in males than females. This model, and its implications for intervention, is discussed in the context of the longitudinal studies that have been conducted on psychopathy.

Exploring Definitions and Prevalence of Verbal Sexual Coercion and Its Relationship to Consent to Unwanted Sex: Implications for Affirmative Consent Standards on College Campuses

Campus sexual assault is a pervasive issue impacting the well-being, quality of life, and education of all students. There have been many recent efforts to prevent and address campus sexual assault, most notably the adoption of affirmative consent standards. (1) Efforts to address sexual assault on college campuses through an affirmative consent standard could be undermined by traditional gender norms, sexual scripts, and the power dynamics inherent in heterosexual relations, which lead to situations in which many women provide consent to unwanted sex. (2) Studies indicate that college women are likely to experience verbal sexual coercion, yet research has failed to come to a consensus on how to define, operationalize, and study verbal sexual coercion. (3) Research on sexual consent is also lacking, in particular as it relates to consent to unwanted sex as a result of the presence of verbal sexual coercion. (4) This article discusses how multiple forms of unwanted sex can be conceptually examined. (5) Policy implications and areas for future research are discussed.

General trust impedes perception of self-reported primary psychopathy in thin slices of social interaction

Little is known about people's ability to detect subclinical psychopathy from others' quotidian social behavior, or about the correlates of variation in this ability. This study sought to address these questions using a thin slice personality judgment paradigm. We presented 108 undergraduate judges (70.4% female) with 1.5 minute video thin slices of zero-acquaintance triadic conversations among other undergraduates (targets: n = 105, 57.1% female). Judges completed self-report measures of general trust, caution, and empathy. Target individuals had completed the Levenson Self-Report Psychopathy (LSRP) scale. Judges viewed the videos in one of three conditions: complete audio, silent, or audio from which semantic content had been removed using low-pass filtering. Using a novel other-rating version of the LSRP, judges' ratings of targets' primary psychopathy levels were significantly positively associated with targets' self-reports, but only in the complete audio condition. Judge general trust and target LSRP interacted, such that judges higher in general trust made less accurate judgments with respect to targets higher in primary and total psychopathy. Results are consistent with a scenario in which psychopathic traits are maintained in human populations by negative frequency dependent selection operating through the costs of detecting psychopathy in others.

Using latent variable- and person-centered approaches to examine the role of psychopathic traits in sex offenders

The current study employed both latent variable- and person-centered approaches to examine psychopathic traits in a large sample of sex offenders (N = 958). The offenders, who had committed a range of sexual crimes, had been assessed with the Psychopathy Checklist-Revised (PCL-R; Hare, 2003). Structural equation modeling results indicated that the four-factor model of psychopathy (Hare, 2003; Neumann, Hare, & Newman, 2007) provided good representation of the dimensional nature of psychopathic traits across the sample of offenders, and that the PCL-R factors significantly predicted sexual crimes. In particular, the Affective and Antisocial psychopathy factors each predicted sexually violent crimes. Latent profile analysis results revealed evidence for a 4-class solution, with the subtypes showing distinct PCL-R facet profiles, consistent with previous research. The four subtypes were validated using sexual crime profiles. The prototypic psychopathy subtype (high on all 4 PCL-R facets) evidenced more violent sexual offenses than did the other subtypes. Taken together, the results demonstrate how variable- and person-centered approaches in combination can add to our understanding of the psychopathy construct and its correlates. (PsycINFO Database Record

Do psychopathic birds of a feather flock together? Psychopathic personality traits and romantic preferences

OBJECTIVE

The goal of the present studies was to investigate whether people are especially attracted to psychopathic traits, and whether there are individual differences in such attraction.

METHOD

Female undergraduates (N = 270; M_age  = 19; 57% White, 20% Asian, 8% Black) and female and male community members (N = 426; M_age  = 37; 56% female; 81% Caucasian, 10% African American, 4% Asian) reported on their own personality and constructed their ideal mate for a dating, short-term, and long-term relationship from a list of 70 characteristics drawn from well-validated criteria for psychopathic personality and diagnostic criteria for DSM-5 personality disorders (PDs).

RESULTS

Across both studies, absolute romantic preferences for psychopathic traits collapsed across time point were low on average, but higher than those for most all other PDs. In addition, they were higher for Factor 1 (i.e., interpersonal/affective) as opposed to Factor 2 (i.e., impulsive, antisocial) psychopathy traits. Participants with marked PD features, including Factor 2 psychopathy traits, were more inclined than others to endorse a preference for psychopathic males.

CONCLUSIONS

Relative attraction to psychopathic males and observed homophily may be avenues through which psychopathic traits persist in the population across time.

What Money Can't Buy: Different Patterns in Decision Making About Sex and Money Predict Past Sexual Coercion Perpetration

Self-reported impulsivity has been found to predict the perpetration of sexual coercion in both sexual offenders and male college students. Impulsivity can be conceptualized as a generalized lack of self-control (i.e., general perspective) or as a multifaceted construct that can vary from one context to the other (i.e., domain-specific perspective). Delay discounting, the tendency to prefer sooner smaller rewards over larger delayed rewards, is a measure of impulsive decision making. Recent sexual adaptations of delay discounting tasks can be used to test domain-specific assumptions. The present study used the UPPS-P impulsivity questionnaire, a standard money discounting task, and a sexual discounting task to predict past use of sexual coercion in a sample of 98 male college students. Results indicated that higher negative urgency scores, less impulsive money discounting, and more impulsive sexual discounting all predicted sexual coercion. Consistent with previous studies, sexuality was discounted more steeply than money by both perpetrators and non-perpetrators of sexual coercion, but this difference was twice as large in perpetrators compared to non-perpetrators. Our study identified three different predictors of sexual coercion in male college students: a broad tendency to act rashly under negative emotions, a specific difficulty to postpone sexual gratification, and a pattern of optimal non-sexual decision making. Results highlight the importance of using multiple measures, including sexuality-specific measures, to get a clear portrait of the links between impulsivity and sexual coercion.

The Role of Psychopathic Traits in Female Sexual Coercion

Researchers have consistently found a relationship between psychopathy and the use of sexual coercion in samples of males with and without previous sexual arrests (Abbey, Jacques-Tiura, & LeBreton, 2011; Hare, 1991; Hersh & Gray-Little, 1998; Seto & Lalumiere, 2000). Although there is growing recognition that females also engage in sexually coercive behavior, current understanding of female coercion is limited (Bouffard, Bouffard, & Miller, 2015; Cortoni, Hanson, & Coache, 2010; Muñoz, Khan, & Cordwell, 2011). This study examined the relationship between psychopathic traits and sexual coercion tactics among a sample of 558 undergraduate females. Results indicate that the use of any previous sexual coercion tactic (coax, lie, get drunk, and assault) and higher endorsement of primary psychopathy traits significantly predict whether the females state that they will engage in future sexually coercive behaviors.

Genital Responses to Rape Vignettes Among Young Men: The Influence of Mood and Directed Attention

Although it is clear that men with a history of sexual assaults against women produce higher relative genital responses to rape vignettes in the laboratory than do men without such a history, it remains unclear what aspects of the vignettes are eliciting these responses, and whether the genital responses are affected by situational factors. The antisocial tendencies hypothesis states that many men are inhibited by cues of violence, suffering, and coercion in rape vignettes, but other men, particularly antisocial and sexually aggressive men, are not so inhibited. In this study, we investigated whether the hypothesized inhibition to rape vignettes among nonoffenders could be affected by manipulation of mood and directed attention. A total of 48 young men were exposed to audio-recorded vignettes describing mutually consenting and nonviolent sexual interactions, mutually consenting and violent sexual interactions, nonconsenting and violent sexual interactions, and nonsexual and nonviolent social interactions (within-subjects). Participants were randomly assigned to a mood manipulation designed to induce a happy, neutral, or sad mood (between-subjects). All were asked to pay attention to either sex words or violent words while listening to the vignettes (within-subjects). As is typically observed, genital responses were lower (inhibited) when vignettes included cues of violence or nonconsent. Both happy and sad mood inductions reduced this inhibition, so that men induced into a happy or sad mood showed greater relative responding to cues of violence or nonconsent compared with men in a neutral mood. The attention manipulation had no significant effect. Results suggest that genital responses to rape cues can be situationally influenced, but not necessarily as predicted by the antisocial tendencies hypothesis.

On the Psychometric Study of Human Life History Strategies

This article attends to recent discussions of validity in psychometric research on human life history strategy (LHS), provides a constructive critique of the extant literature, and describes strategies for improving construct validity. To place the psychometric study of human LHS on more solid ground, our review indicates that researchers should (a) use approaches to psychometric modeling that are consistent with their philosophies of measurement, (b) confirm the dimensionality of life history indicators, and (c) establish measurement invariance for at least a subset of indicators. Because we see confirming the dimensionality of life history indicators as the next step toward placing the psychometrics of human LHS on more solid ground, we use nationally representative data and structural equation modeling to test the structure of middle adult life history indicators. We found statistically independent mating competition and Super-K dimensions and the effects of parental harshness and childhood unpredictability on Super-K were consistent with past research. However, childhood socioeconomic status had a moderate positive effect on mating competition and no effect on Super-K, while unpredictability did not predict mating competition. We conclude that human LHS is more complex than previously suggested-there does not seem to be a single dimension of human LHS among Western adults and the effects of environmental components seem to vary between mating competition and Super-K.

Paralimbic biomarkers in taxometric analyses of psychopathy: does changing the indicators change the conclusion?

Although psychopathy has consistently been shown to distribute as a dimension, all prior studies have examined behavioral indicators that may be phenotypically distant from core biological correlates of the syndrome. The current studies attempted to determine whether biomarkers from a high-resolution structural MRI scan of selected limbic and paralimbic structures identified the latent structure of psychopathy as continuous. Participants were 254 adult male medium/maximum security inmates (Study 1) and 191 adolescent male maximum security inmates (Study 2) who volunteered to undergo research MRI scans. Indicators of gray matter concentration (GMC) in the adult sample and of gray matter volume (GMV) in the adolescent sample were subjected to taxometric analysis using three nonredundant taxometric procedures: mean above minus below a cut (MAMBAC), maximum covariance (MAXCOV), and latent-mode factor analysis (L-Mode). Evidence of continuous latent structure was found across samples (adults, adolescents), measures (GMV, GMC, Psychopathy Checklist-Revised [PCL-R], Psychopathy Checklist: Youth Version [PCL:YV]), and procedures (MAMBAC, MAXCOV, L-Mode). Continuous latent structure was also noted when biomarker (GMV, GMC) and behavioral (PCL) indicators were included in the same analysis. The current results support the view that psychopathy is a quantitative construct on which people differ in degree ("more of" or "less of") rather than a qualitative construct that assigns people to distinct categories ("either/or"). Continued development of the psychopathy construct may depend on our ability to identify, understand, and make effective use of its apparent continuous latent structure.

Inverted social reward: associations between psychopathic traits and self-report and experimental measures of social reward

Individuals with high levels of psychopathic traits tend to undervalue long-term, affiliative relationships, but it remains unclear what motivates them to engage in social interactions at all. Their experience of social reward may provide an important clue. In Study 1 of this paper, a large sample of participants (N = 505) completed a measure of psychopathic traits (Self-Report Psychopathy Scale Short-Form) and a measure of social reward value (Social Reward Questionnaire) to explore what aspects of social reward are associated with psychopathic traits. In Study 2 (N = 110), the same measures were administered to a new group of participants along with two experimental tasks investigating monetary and social reward value. Psychopathic traits were found to be positively correlated with the enjoyment of callous treatment of others and negatively associated with the enjoyment of positive social interactions. This indicates a pattern of ‘inverted’ social reward in which being cruel is enjoyable and being kind is not. Interpersonal psychopathic traits were also positively associated with the difference between mean reaction times (RTs) in the monetary and social experimental reward tasks; individuals with high levels of these traits responded comparatively faster to social than monetary reward. We speculate that this may be because social approval/admiration has particular value for these individuals, who have a tendency to use and manipulate others. Together, these studies provide evidence that the self-serving and cruel social behaviour seen in psychopathy may in part be explained by what these individuals find rewarding.

Psychopathic traits in adolescence: a review

Currently, and throughout the history of mental healthcare, the literature highlights that there is no agreement on the use of the terms "antisocial personality disorder" and "psychopathic personality". This paper aims to promote a debate over these concepts and their evaluation for both adults and adolescents. With this aim, a systematic review was conducted in the MedLine data base between 1968 and March 2011 using the terms "adolescent", "antisocial personality disorder", and "personality assessment". From the 59 identified articles 29 were selected to further analysis. The discussion of these terms was confirmed, as well as the importance of assessing psychopathic traits during adolescence. An initial tendency to disregard the term psychopathy and its affective implications was evidenced. However, the latest psychological instruments return to the discussion regarding the use of this diagnosis and its implications.

Direct and indirect measures of sexual maturity preferences differentiate subtypes of child sexual abusers

To aid risk assessment, management, and treatment planning it is essential to assess child sexual abusers' deviant sexual interests (DSI) and preferences (DSP) for sex with children. However, measurement of DSI/DSP is fraught with psychometric problems. In consequence, research interest has shifted to latency-based indirect measures as a measurement approach to complement self-report and physiological assessment. Utilizing the Explicit and Implicit Sexual Interest Profile (EISIP)-a multimethod approach consisting of self-report, viewing time, and Implicit Association Test (IAT) DSI/DSP measures-we replicated phallometric DSI/DSP differences between child sexual abuser subgroups in a sample of intrafamilial, extrafamilial, and child pornography offenders. DSI/DSP was associated with recidivism risk, offense-behavioral measures of pedophilic interest, and sexual fantasizing. It also negatively correlated with antisociality. Distinguishing between child sexual abuser subtypes and being related to recidivism risk, the EISIP is a useful tool for sexual offender assessments.

Relating sexual sadism and psychopathy to one another, non-sexual violence, and sexual crime behaviors

Sexual sadism and psychopathy have been theoretically, clinically, and empirically linked to violence. Although both constructs are linked to predatory violence, few studies have sought to explore the covariation of the two constructs, and even fewer have sought to conceptualize the similarities of violence prediction in each. The current study considered all four Psychopathy Checklist-Revised (PCL-R) facets and employed well-defined, validated measures of sadism to elucidate the relation between sadism and psychopathy, as well as to determine the role of each in the prediction of non-sexual violence and sexual crime behaviors. Study 1 assessed 314 adult, male sex offenders using archival ratings, as well as the self-report Multidimensional Inventory of Development, Sex, and Aggression (the MIDSA). Study 2 used archival ratings to assess 599 adult, male sex offenders. Exploratory and confirmatory factor analyses of crime scene descriptions yielded four sexual crime behavior factors: Violence, Physical Control, Sexual Behavior, and Paraphilic. Sadism and psychopathy covaried, but were not coextensive; sadism correlated with Total PCL-R, Facet 1, and Facet 4 scores. The constructs predicted all non-sexual violence measures, but predicted different sexual crime behavior factors. The PCL-R facets collectively predicted the Violence and Paraphilic factors, whereas sadism only predicted the Violence factor.