Lying is one of the characteristic features of psychopathy, and has been recognized in clinical and diagnostic descriptions of the disorder, yet individuals with psychopathic traits have been found to have reduced neural activity in many of the brain regions that are important for lying. In this study, we examine brain activity in sixteen individuals with varying degrees of psychopathic traits during a task in which they are instructed to falsify information or tell the truth about (...) autobiographical and non-autobiographical facts, some of which was related to criminal behavior. We found that psychopathic traits were primarily associated with increased activity in the anterior cingulate, various regions of the prefrontal cortex, insula, angular gyrus, and the inferior parietal lobe when participants falsified information of any type. Associations tended to be stronger when participants falsified information about criminal behaviors. Although this study was conducted in a small sample of individuals and the task used has limited ecological validity, these findings support a growing body of literature suggesting that in some contexts, individuals with higher levels of psychopathic traits may demonstrate heightened levels of brain activity. (shrink)

Psychopathic individuals display a callous-coldhearted approach to interpersonal and affective situations and engage in impulsive and antisocial behaviors. Despite early conceptualizations suggesting that psychopathy is related to enhanced cognitive functioning, research examining executive functioning (EF) in psychopathy has yielded few such findings. It is possible that some psychopathic trait dimensions are more related to EF than others. Research using a 2-factor or 4-facet model of psychopathy highlights some dimension-specific differences in EF, but this research is limited in scope. (...) Another complicating factor in teasing apart the EF–psychopathy relationship is the tendency to use different psychopathy assessments for incarcerated versus community samples. In this study, an EF battery and multiple measures of psychopathic dimensions were administered to a sample of male prisoners (N. (shrink)

Context — Children and adults with psychopathic traits and conduct or oppositional defiant disorder demonstrate poor decision making and are impaired in reversal learning. However, the neural basis of this impairment has not previously been investigated. Furthermore, despite high comorbidity of psychopathic traits and attention deficit/hyperactivity disorder, to our knowledge, no research has attempted to distinguish neural correlates of childhood psychopathic traits and attention-deficit/hyperactivity disorder. Objective—To determine the neural regions that underlie the reversal learning (...) impairments in children with psychopathic traits plus conduct or oppositional defiant disorder. Design — Case-control study. Setting — Government clinical research institute. Participants — Forty-two adolescents aged 10 to 17 years: 14 with psychopathic traits and oppositional defiant disorder or conduct disorder, 14 with attention-deficit/hyperactivity disorder only, and 14 healthy controls. Main Outcome Measure — Blood oxygenation level–dependent signal as measured via functional magnetic resonance imaging during a probabilistic reversal task. Results — Children with psychopathic traits showed abnormal responses within the ventromedial prefrontal cortex (Brodmann area 10) during punished reversal errors compared with children wit hattention deficit/hyperactivity disorder and healthy children (P < .05 corrected for multiple comparisons). Conclusions — To our knowledge, this study provides the first evidence of abnormal ventromedial prefrontal cortex responsiveness in children with psychopathic traits and demonstrates this dysfunction was not attributable to comorbid attention-deficit/hyperactivity disorder. These findings suggest that reversal learning impairments in patients with developmental psychopathic traits relate to abnormal processing of reinforcement information. (shrink)

Neuroimaging studies have found that adult male psychopaths show reduced engagement of limbic and paralimbic circuitry while making moral judgments. The goal of this study was to investigate whether these findings extend to adolescent males with psychopathic traits. Functional MRI was used to record hemodynamic activity in 111 incarcerated male adolescents while they viewed unpleasant pictures that did or did not depict moral transgressions and rated each on “moral violation severity”. Adolescents were assessed for psychopathic traits (...) using the Psychopathy Checklist-Youth Version (PCL-YV), Kiddie Schedule for Affective Disorders and Schizophrenia-Present and Lifetime Version (KSADS-PL) Conduct Disorder supplement, and Inventory of Callous and Unemotional Traits-Youth Version (ICU-Y). While viewing pictures depicting moral transgressions, CD scores were negatively correlated with hemodynamic responses in the anterior temporal cortex. Adolescents scoring low on the ICU-Y showed a positive correlation between right amygdala responses and severity of violation ratings; those with high ICU-Y scores showed a negative correlation. While viewing unpleasant pictures with and without moral transgressions, PCL-YV scores were negatively correlated with hemodynamic responses in the left amygdala. Overall, the results are consistent with those previously found in adult male psychopaths, but vary depending on the type of psychopathy assessment. (shrink)

Moral judgments about an action are influenced by the action’s intentionality. The reverse is also true: judgments of intentionality can be influenced by an action’s moral valence. For example, respondents judge a harmful side-effect of an intended outcome to be more intentional than a helpful side-effect. Debate continues regarding the mechanisms underlying this “side-effect effect” and the conditions under which it will persist. The research behind this chapter tested whether the side-effect effect is intact in adolescents with psychopathic (...) class='Hi'>traits, who are characterized by persistent immoral behavior, deficient moral emotions, and impairments in some forms of moral judgment. Results showed no differences between healthy adolescents and those with psychopathic traits: both groups judged harmful side-effects to be more intentional than helpful side-effects by an approximately 2:1 ratio. The chapter discusses these results in light of hypothesized mechanisms underlying the side-effect effect, and in light of our current understanding of moral reasoning deficits in psychopathy. (shrink)

There is a paucity of research on how psychopathy relates to decision-making. In this study, we assessed the relationship between affective decision-making and psychopathic personality. A sample of prisoners (n D 49) was characterized in terms of psychopathic traits using the Psychopathic Checklist: Screening Version (PCL:SV). Decision-making was assessed using the Iowa Gambling Task (IGT). Higher levels of psychopathy related to more advantageous choices (p D .003). Also counter-intuitively, higher levels of antisocial traits (facet 4) (...) predicted advantageous choices during the learning phase of the task (p D .004). Our findings suggest that some psychopathic facets may be more relevant to decisionmaking under risk, and highlight the importance of further investigations considering facet and trait-level relationships with decision-making. (shrink)

Purpose: Although psychopathy is characterized by amoral behavior, literature on the association between psychopathy and moral judgment pattern is mixed. Recent evidence suggests that this may be due to the moderation effect of anxiety (Koenigs, Kruepke, Zeier, & Newman, 2011). The current study aims to examine the psychopathy-utilitarian judgment association in college students. Method: In this study, a group of 302 college students completed a moral judgment test involving hypothetical dilemmas. Their psychopathic traits were assessed by the (...) class='Hi'>Psychopathic Personality Inventory – Short Form (PPI-SF) (Lilienfeld & Andrews, 1996). Results: Individuals with higher psychopathic traits were more likely to make utilitarian responses to moral dilemmas. Furthermore, the association between utilitarian responses and psychopathy was more salient for the behavioral factor of psychopathy (PPI-II), and this association was mediated by self-reported aggression. However, the moderating effect of anxiety was not found. Conclusions: These results build upon work on utilitarian moral judgment in psychopathic individuals in a non-incarcerated, non-institutionalized sample, and have important implications for the behavioral correc- tion system. (shrink)

A well-publicized study entitled (Bartels and Pizarro, 2011) purportedly provides evidence that utilitarian solutions to a particular class of moral dilemmas are endorsed primarily by individuals with psychopathic traits. According to the authors, these findings give researchers reason to refrain from classifying utilitarian judgements as morally optimal. This article is a two-part response to the study. The first part comprises concerns about the methodology used and the adequacy of the data for supporting the authors’ conclusions. The second part (...) seeks to undermine the suggestion that if anti-social individuals are the ones most likely to endorse utilitarian solutions to the target dilemmas, we should be sceptical about those solutions. I argue that the character of individuals most likely to make a given moral judgement is an unreliable indicator of the quality of that judgement. (shrink)

Since its publication, the Psychopathic Personality Inventory and its revision (Lilien- feld & Andrews, 1996; Lilienfeld & Widows, 2005) have become increasingly popular such that it is now among the most frequently used self-report inventories for the assessment of psychopathy. The current meta-analysis examined the relations between the two PPI factors (factor 1: Fearless Dominance; factor 2: Self-Centered Impulsivity), as well as their relations with other validated measures of psychopathy, internalizing and externalizing forms of psychopathology, general personality traits, (...) and antisocial personality disorder symptoms. Across 61 samples reported in 49 publications, we found support for the convergent and criterion validity of both PPI factor 2 and the PPI total score. Much weaker validation was found for PPI factor 1, which manifested limited convergent validity and a pattern of correlations with central criterion variables that was inconsistent with many conceptualizations of psychopathy. (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)

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)

To date there are no studies examining the ability to make a moral/conventional transgression distinction in adolescent offenders with psychopathic traits. Based on the Psychopathy Checklist: Youth Version, we compared males with high (HP, n = 45), medium (MP, n = 31) and low psychopathy scores (LP, n = 39) on the moral convention distinction task. Under normal rule conditions the psychopathy groups did not differ in their ability to make a moral/conventional distinction. The HP group tended to (...) view both transgression types as more permissible and conventional transgressions as less serious, than the LP group. Under modified rule conditions, the HP group exhibited reduced moral/conventional distinction scores com- pared to the MP group. The findings only partially replicate findings from previous M/C studies in children and adults with psychopathic traits. The work fits with more recent reports suggesting that psychopathy is not strongly associated with marked difficulties in cognitive theory of mind, perspective taking and moral judgements. Future studies should focus on the affective aspects of moral reasoning in offender samples. (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)

Background— Although one of the main characteristics of psychopaths is a deficit in emotion, it is unknown whether they show a fundamental impairment in appropriately recognizing their own body sensations during an emotion-inducing task. Method— Skin conductance and heart rate were recorded in 138 males during a social stressor together with subjective reports of body sensations. Psychopathic traits were assessed using the Psychopathy Checklist – Revised (PCL-R) 2nd edition (Hare, 2003). Results— Nonpsychopathic controls who reported higher body sensations (...) showed higher heart rate reactivity, but this verbal-autonomic consistency was not found in psychopathic individuals. This mind-body disconnection is particularly associated with the interpersonal-affective factor of psychopathy. Conclusions— Findings are the first to document this body sensations– autonomic mismatch in psychopaths, and suggest that somatic aphasia the inaccurate identification and recognition of one‘s own somatic states may partly underlie the interpersonal-affective features of psychopaths. (shrink)

The term psychopathy refers to a personality disorder associated with callous personality traits and antisocial behaviors. Throughout its research history, psychopathy has frequently been described as a peculiar form of moral blindness, engendering a narrative about a patient stereotype incapable of taking a genuine moral perspective, similar to a blind person who is deprived of proper visual perceptions. However, recent empirical research has shown that clinically diagnosed psychopaths are morally more fit than initially thought, and the blindness-analogy now comes (...) across as largely misleading. In this contribution, the moral-blindness analogy is explored in an attempt to qualify anew its relevance in psychopathy theory and research. It is demonstrated that there are indeed theoretically relevant parallels to be drawn between blindness and psychopathy, parallels that are especially illuminating when accounting for the potential symptomatology, dimensionality, and etiological nature of the disorder. (shrink)

The Axis II Work Group of the Task Force on Diagnostic and Statistical Manual of Mental Disorders (DSM-IV) has expressed concern that antisocial personality disorder (APD) criteria are too long and cumbersome and that they focus on antisocial behaviors rather than personality traits central to traditional conceptions of psychopathy and to international criteria. R. D. Hare et al describe an alternative to the approach taken in the DSM-III—Revised (DSM-III—R; American Psychiatric Association, 1987), namely, the revised Psychopathy Checklist. The authors (...) also discuss the multisite APD field trials designed to evaluate and compare 4 criteria sets: the DSM-III—R criteria, a shortened list of these criteria, the criteria for dyssocial personality disorder from the 10th edition of the International Classification of Diseases (World Health Organization, 1990), and a 10-item criteria set for psychopathic personality disorder derived from the revised Psychopathy Checklist. (PsycINFO Database Record (c) 2015 APA, all rights reserved). (shrink)

In this article I aim to make progress towards the philosophical goal of ascertaining what, if anything, all mental illnesses have in common, attempting to unify a large sub-set of them that have a relational or interpersonal dimension. One major claim is that, if we want a promising theory of mental illness, we must go beyond the dominant western accounts of mental illness/health, which focus on traits intrinsic to a person such as pain/pleasure, lethargy/liveliness, fragmentation/integration, and falsehood/authenticity. A second (...) major claim is that the relational facets of mental illness are plausibly understood theoretically in terms of a person’s inability to identify with others or to exhibit solidarity with them, relational values that are salient in the African philosophical tradition. I show that these two extrinsic properties well explain several intuitive instances of mental illness, including, amongst several others, being abusive, psychopathic, narcissistic, histrionic, paranoid, and phobic. (shrink)

Psychopathy, which is characterized by a constellation of antisocial behavioral traits, may be subdivided on the basis of etiology: “primary” (low-anxious) psychopathy is viewed as a direct consequence of some core intrinsic deficit, whereas “secondary” (high-anxious) psychopathy is viewed as an indirect consequence of environmental factors or other psychopathology. Theories on the neurobiology of psychopathy have targeted dysfunction within ventromedial prefrontal cortex (vmPFC) as a putative mechanism, yet the relationship between vmPFC function and psychopathy subtype has not been fully (...) explored. In this study, we administered two laboratory decision-making tasks (the Ultimatum Game and the Dictator Game) to a group of prisoners (n=47) to determine whether the different subtypes of psychopathy (primary vs. secondary) are associated with characteristic patterns of economic decision-making, and furthermore, whether either subtype exhibits similar performance to patients with vmPFC lesions. Comparing primary psychopaths (n=6) to secondary psychopaths (n=6) and non-psychopaths (n=22), we found that primary psychopathy was associated with significantly lower acceptance rates of unfair Ultimatum offers and lower offer amounts in the Dictator Game. Moreover, primary psychopaths were quantitatively similar to vmPFC lesion patients in their response patterns. These results support the purported connection between psychopathy and vmPFC dysfunction, bolster the distinction between primary and secondary psychopathy, and demonstrate the utility of laboratory economic decision-making tests in differentiating clinical subgroups. (shrink)

: Recently, Erik Wielenberg has developed a novel objection to divine command meta-ethics. The objection that DCM "has the implausible implication that psychopaths have no moral obligations and hence their evil acts, no matter how evil, are morally permissible". This article criticizes Wielenberg's argument. Section 1 will expound Wielenberg's new "psychopath" argument in the context of the recent debate over the Promulgation Objection. Section 2 will discuss two ambiguities in the argument; in particular, Wielenberg’s formulation is ambiguous between whether Wielenberg (...) uses the word "obligation" in an objective or subjective sense. Section 3 will argue that this ambiguity undercuts the argument. If Wielenberg is using the word obligation in a subjective sense, his arguments do not show that that psychopaths "have no moral obligations". By contrast, if Wielenberg is using the word obligation in an objective sense, his arguments do not show that Divine command theorists are committed to denying psychopaths have obligations. (shrink)

An agent is morally competent if she can respond to moral considerations. There is a debate about whether agents are open to moral blame only if they are morally competent, and Dana Nelkin’s “Psychopaths, Incorrigible Racists, and the Faces of Responsibility” is an important contribution to this debate. Like others involved in this dispute, Nelkin takes the case of the psychopath to be instructive. This is because psychopaths are similar to responsible agents insofar as they act deliberately and on judgments (...) about reasons, and yet psychopaths lack moral competence. Nelkin argues that, because of their moral incompetence, vices such as cruelty are not attributable to psychopaths. It follows that psychopaths are not open to moral blame since their behavior is only seemingly vicious. I have three aims in this reply to Nelkin. First, I respond to her claim that psychopaths are not capable of cruelty. Second, I respond to the related proposal—embedded in Nelkin’s “symmetry argument”—that a “pro-social psychopath” would not be capable of kindness. My responses to these claims are unified: even if the psychopath is not capable of “cruelty,” and the pro-social psychopath is not capable of “kindness,” the actions of these agents can have a significance for us that properly engages our blaming and praising practices. Finally, I argue that Nelkin’s strategy for showing that moral competence is required for cruelty supports a stronger conclusion than she anticipates: it supports the conclusion that blameworthiness requires not just moral competence, but actual moral understanding. (shrink)

This chapter discusses the fundamental question of the defense industry’s role and legitimacy for societies. It begins with a parable of a psychopath doing something self-serving that has beneficial moral consequences. Analogously, it is argued, the defense industry profiting by selling weapons that can kill people makes it useful in solving moral problems not solvable by people with ordinary moral scruples. Next, the chapter argues that while the defense industry is a business, it is also implicated in the security of (...) its home nations. In addition, its products can be used for good or evil. Thus, it must navigate conflicting values, with the result that the rules often thought to rightly regulate the industry—codes of business ethics, engineering ethics, procurement ethics, plus laws of the land, and dicta of conscience—need supplementing by general moral reflection. This chapter argues for a principle that tells how to decide when to violate the rules, for a theory of rational choice on which choosing by this principle is rational, and for teaching that theory to defense industry employees to ensure their ethical behavior. (shrink)

I argue for two propositions. First, contrary to the common wisdom, we may justly punish individuals who are not morally responsible for their crimes. Psychopaths – individuals who lack the capacity to feel sympathy – help to prove this point. Scholars are increasingly arguing that psychopaths are not morally responsible for their behavior because they suffer from a neurological disorder that makes it impossible for them to understand, and therefore be motivated by, moral reasons. These same scholars then infer from (...) this conclusion that they must also lack criminal responsibility and therefore that our continuing to punish psychopaths for their crimes is unjust. My response is that this inference is entirely fallacious. -/- Criminal responsibility turns out to be quite distinct from moral responsibility. The two kinds of responsibility require very different conditions to be satisfied. In particular, criminal responsibility, unlike moral responsibility, does not require an agent be able to grasp and follow moral reasons; it requires only that the individual be able to grasp and follow criminal laws. Once this point is recognized, it becomes much easier to accept my thesis: while the subset of psychopaths who commit crimes are not morally responsible for their criminal behavior because they cannot understand moral reasons, they are still criminally responsible because they can understand what the consequences will be if they get caught. For this reason, even though I concede that psychopaths are not morally responsible for the crimes that they commit, our practice of punishing them for these crimes is still just. -/- Second, I argue that psychopathy is a mental illness and should be recognized as such. One reason that it should be recognized as a mental illness is simply because it is; it satisfies the main criteria for inclusion in the DSM-IV, the “bible” of mental disorders. The other reason is more practical than conceptual. It starts with two facts: the U.S. Supreme Court has decided that the preventive detention of any individual who is not a criminal suspect is not constitutional unless the individual is not only dangerous but also mentally ill; and psychopathy is not currently considered to be a mental illness. So, as things now stand, we cannot preventively commit dangerous psychopaths – that is, psychopaths who have clearly indicated that they will be committing serious crimes. Instead, we must wait for them to commit the crimes before we can lock them up. Unfortunately, this incarceration always comes too late for the victims. It would therefore be better if we could lock them up before they actually inflict any harm. Once again, then, I propose that the legal and psychological communities classify psychopathy as a mental illness. (shrink)

At least some serial killers are psychopathic serial killers. Psychopathic serial killers raise interesting questions about the nature of evil and moral responsibility. On the one hand, serial killers seem to be obviously evil, if anything is. On the other hand, psychopathy is a diagnosable disorder that, among other things, involves a diminished ability to understand and use basic moral distinctions. This feature of psychopathy suggests that psychopathic serial killers have at least diminished responsibility for what they (...) do. In this chapter I consider whether psychopathic serial killers might be properly said to be both evil and morally responsible for their actions. I argue that psychopathic serial killers are plausibly evil in at least one recognizable sense of the term, but that they are nevertheless not likely to be responsible for many of the evils they perpetuate. (shrink)

Psychopathy has been theorized as a disorder of emotion, which impairs moral judgments. However, these theories are increasingly being abandoned as empirical studies show that psychopaths seem to make proper moral judgments. In this contribution, these findings are reassessed, and it is argued that prevalent emotion‐theories of psychopathy appear to operate with the unjustified assumption that psychopaths have no emotions, which leads to the hypothesis that psychopaths are completely unable to make moral judgments. An alternative and novel explanation is proposed, (...) theorizing psychopathy as a degree‐specific emotional deficiency, which causes degree‐specific differences in moral judgments. (shrink)

Psychopaths exhibit diminished ability to grieve. Here I address whether this inability can be explained by the trademark feature of psychopaths, namely, their diminished capacity for interpersonal empathy. I argue that this hypothesis turns out to be correct, but requires that we conceptualize empathy not merely as an ability to relate (emotionally and ethically) to other individuals but also as an ability to relate to past and present iterations of ourselves. This reconceptualization accords well with evidence regarding psychopaths’ intense focus (...) on the temporal present and difficulties in engaging in mental time travel, as well as with the essentially egocentric and identity-based nature of grief. -/- . (shrink)

Dietmar Hübner and Lucie White question the ethical justification of employing risky neurosurgical interventions to treat imprisoned psychopaths. They argue that (1) such interventions would confer no medical benefit on the psychopath as there is no “subjective suffering” involved in psychopathy and (2) psychopaths could not voluntarily consent to such procedures because they could have no “internal motivation” for doing so. In the course of their discussion, the authors insightfully show that certain aspects of the psychopath’s personality structure are especially (...) relevant to assessing the ethics of risky treatment options. As I argue, however, the particular conclusions that the authors draw are too strong. A deeper look at the psychopathic profile casts doubt on (1) and (2). In some cases, psychopaths can be plausibly construed as experiencing subjective suffering on account of their disorder and as appropriately motivated to voluntarily consent to neurosurgical treatment. After arguing for this view, I suggest that the psychopath’s consent to neurosurgical intervention might nonetheless be problematic, as their emotional incapacities might preclude their abilities to adequately appreciate the relevant risks. (shrink)

Psychopaths are brutal individuals, having no empathetic concern for others. Initially, the existence of psychopaths seems to be a mystery from an evolutionary point of view. On close examination, however, it can be accommodated by evolutionary theory. Brutal individuals excelled meek individuals in the desperate circumstances where they had to fight their competitors over natural resources for survival and reproduction. This evolutionary explanation of psychopaths receives support from Pinker's observation of the history of brutality. We have good reasons for predicting (...) that psychopaths are likely to die out in the future. (shrink)

Is psychopathy born or made? Contemporary psychopathy research shows that there is much wrong with this question. It is increasingly accepted that the development of psychopathy is dependent on multiple causal factors interacting with one another. However, there remains the major theoretical challenge of understanding the relations between these multiple causal factors in the developmental process. In this paper, I argue that the conventional picture of gene-environment interactionism does not offer an adequate account of psychopathy development. Instead, I propose that (...) a theoretical framework from the philosophy of biology, namely developmental systems theory, can facilitate a better understanding of psychopathy development that captures the contingent and dynamic relations between multiple causal factors. Some practical implications of a developmental systems theory approach to psychopathy are also explored. (shrink)

Recent developments in neuroscience have inspired proposals to perform deep brain stimulation on psychopathic detainees. We contend that these proposals cannot meet important ethical requirements that hold for both medical research and therapy. After providing a rough overview of key aspects of psychopathy and the prospects of tackling this condition via deep brain stimulation, we proceed to an ethical assessment of such measures, referring closely to the distinctive features of psychopathic personality, particularly the absence of subjective suffering and (...) a lack of moral motivation. Scrutiny of these factors reveals that two essential bioethical criteria, individual medical benefit and voluntary informed consent, cannot be met in performing neurosurgical experiments or treatments on psychopathic inmates. (shrink)

Questionable research practices are a well-recognized problem in psychology. Coding bias, or the tendency of review studies to disproportionately cite positive findings from original research, has received comparatively little attention. Coding bias is more likely to occur when original research, such as neuroimaging, includes large numbers of effects, and is most concerning in applied contexts. We evaluated coding bias in reviews of structural magnetic resonance imaging studies of PCL-R psychopathy. We used PRISMA guidelines to locate all relevant original sMRI studies (...) and reviews. The proportion of null-findings cited in reviews was significantly lower than those reported in original research, indicating coding bias. Coding bias was not affected by publication date or review design. Reviews recommending forensic applications—such as treatment amenability or reduced criminal responsibility—were no more accurate than purely theoretical reviews. Coding bias may have contributed to a perception that structural brain abnormalities in psychopaths are more consistent than they actually are, and by extension that sMRI findings are suitable for forensic application. We discuss possible sources for the pervasive coding bias we observed, and we provide recommendations to counteract this bias in review studies. Until coding bias is addressed, we argue that this literature should not inform conclusions about psychopaths' neurobiology, especially in forensic contexts. (shrink)

I argue that deep brain stimulation (DBS) is a bad approach for incarcerated psychopaths for two reasons. First, given what we know about psychopathy, empathy, and DBS, it is unlikely to function as an effective treatment for the moral problems that characterize psychopathy. Second, considerations of neurodiversity speak against seeing psychopathy as a mental illness in the first place.

I use a contrastive theory of causal explanation to analyze the notion of a genetic trait. The resulting definition is relational, an implication of which is that no trait is genetic always and everywhere. Rather, every trait may be either genetic or non-genetic, depending on explanatory context. I also outline some other advantages of connecting the debate to the wider causation literature, including how that yields us an account of the distinction between genetic traits and genetic dispositions.

The psychological literature now differentiates between two types of psychopath:successful (with little or no criminal record) and unsuccessful (with a criminal record). Recent research indicates that earlier findings of reduced autonomic activity, reduced prefrontal grey matter, and compromised executive activity may only be true of unsuccessful psychopaths. In contrast, successful psychopaths actually show autonomic and executive function that exceeds that of normals, while having no difference in prefrontal volume from normals. We argue that many successful psychopaths are legally responsible for (...) their actions, as they have the executive capacity to choose not to harm (and thus are legally rational). However, many unsuccessful psychopaths have a lack of executive function that should at least partially excuse them from criminal culpability. Although a successful psychopath's increased executive function may occur in conflict with, rather than in consonance with their increased autonomic activity - producing a cognitive style characterized by self deception and articulate-sounding, but unsound reasoning - they may be capable of recognizing and correcting their lack of autonomic data, and thus can be held responsible. (shrink)

A pressing and difficult practical problem concerns the general issue of the right social response to offenders classified as having antisocial personality disorder. This paper approaches this general problem by focusing, from a philosophical perspective, on the still relevant but more approachable question whether psychopathic offenders are morally responsible. In particular, I investigate whether psychopaths possess moral understanding. A plausible way to approach the last question requires a satisfactory philosophical interpretation of the empirical evidence that appears to show that (...) psychopaths fail to draw the distinction between conventional and moral norms. Specifically, I will consider a recent philosophical debate polarized between supporters of rationalist and sentimentalist accounts of moral understanding. These opponents have discussed whether the case of psychopathy offers empirical support for their account and undermine the rival view. I will argue that the available empirical data leave the outcome of this discussion indeterminate. However, this implies that both these principal theories of moral understanding, if independently motivated, would imply that psychopaths have certain deficits that might affect their moral understanding and, consequently, their moral responsibility. (shrink)

A pressing and difficult practical problem concerns the general issue of the right social response to offenders classified as having antisocial personality disorder. This paper approaches this general problem by focusing, from a philosophical perspective, on the still relevant but more approachable question whether psychopathic offenders are morally responsible. In particular, I investigate whether psychopaths possess moral understanding. A plausible way to approach the last question requires a satisfactory philosophical interpretation of the empirical evidence that appears to show that (...) psychopaths fail to draw the distinction between conventional and moral norms. Specifically, I will consider a recent philosophical debate polarized between supporters of rationalist and sentimentalist accounts of moral understanding. These opponents have discussed whether the case of psychopathy offers empirical support for their account and undermine the rival view. I will argue that the available empirical data leave the outcome of this discussion indeterminate. However, this implies that both these principal theories of moral understanding, if independently motivated, would imply that psychopaths have certain deficits that might affect their moral understanding and, consequently, their moral responsibility. (shrink)

This paper challenges the common assumption that some phenotypic traits are quantitative while others are qualitative. The distinction between these two kinds of traits is widely influential in biological and biomedical research as well as in scientific education and communication. This is probably due to both historical and epistemological reasons. However, the quantitative/qualitative distinction involves a variety of simplifications on the genetic causes of phenotypic variability and on the development of complex traits. Here, I examine three cases (...) from the life sciences that show inconsistencies in the distinction: Mendelian traits, Mendelian diseases, and polygenic mental disorders. I show that these traits can be framed both quantitatively and qualitatively depending, for instance, on the methods through which they are investigated and on specific epistemic purposes. This suggests that the received view of quantitative and qualitative traits has a limited heuristic power—limited to some local contexts or to the specific methodologies adopted. Throughout the paper, I provide directions for framing phenotypes beyond the quantitative/qualitative distinction. I conclude by pointing at the necessity of developing a principled characterisation of what phenotypic traits, in general, are. (shrink)

People can come to seem to us more beautiful the better we get to know their personalities. Some have taken this to show there is a moral kind of beauty. According to the moral beauty view, moral personality traits realise moral beauty in people. Here I present a problem for the standard articulation of the moral beauty view, namely that it is not a logical truth that people inherit the beauty of their virtues. I call this the ‘inheritance problem’. (...) I present an alternative articulation of the moral beauty view that does not give rise to the problem. On this alternative articulation, the moral beauty view is not as revisionary as it is standardly taken to be. (shrink)

This paper draws on work in the sciences of the mind to cast doubt on some assumptions that have often been made in the study of self-control. Contra a long, Aristotelian tradition, recent evidence suggests that highly self-controlled individuals do not have a trait very similar to continence: they experience relatively few desires that conflict with their evaluative judgments and are not especially good at directly and effortfully inhibiting such desires. Similarly, several recent studies have failed to support the view (...) that self-control capacities are constituted, at least in part, by excellent inhibitory executive function ability. I propose an alternative “indirect harmony” hypothesis about trait self-control. According to this hypothesis, if there is a character trait of being highly self-controlled, it consists in motivational harmony within the mind that is brought about through the effective use of indirect resistance strategies that prevent occurrent motivational conflict from emerging in the first place. If this hypothesis is correct, high trait self-control in actual humans does not fit neatly into the traditional categories of either continence or temperance. I conclude by drawing out several implications this hypothesis has for future research on trait self-control and its relation to executive functions. (shrink)

Psychopaths are the bugbears of moral philosophy. They are often used as examples of perfectly rational people who are nonetheless willing to do great moral wrong without regret; hence the disorder has received the epithet “moral insanity” (Pritchard 1835). But whereas philosophers have had a great deal to say about psychopaths’ glaring and often horrifying lack of moral conscience, their aesthetic capacities have received hardly any attention, and are generally assumed to be intact or even enhanced. Popular culture often portrays (...) psychopaths in ways that suggest a great gap between their amorality and their aesthetic sensitivity. In The Silence of the Lambs (Jonathan Demme, 1991), Hannibal Lecter appreciates fine art, fashion, and wine, while he eats his way through his enemies. His real-life counterparts, however, do not demonstrate the same sensitivities. There is no evidence that psychopaths are capable of real aesthetic appreciation, and some evidence that they are not. In this paper, we set out the limited evidence for the psychopath’s deficient aesthetic sensitivity. The best explanations of what the psychopath lacks turn out to implicate abilities that are also thought to be central to moral thought and action: an impaired capacity for empathizing with others and deficient ability to take a disinterested attitude towards things (socalled distance). We endorse the latter explanation. Thinking about what underlies the psychopath’s deficient aesthetic understanding turns out to throw light on a difficult problem: the connection between ethics and aesthetics. (shrink)

Psychopaths appear to be ‘creatures apart’ – grandiose, shameless, callous and versatile in their violence. I discuss biological underpinnings to their pale affect, their selective inability to discern fear and sadness in others and a predatory orienting towards images that make most startle and look away. However, just because something is biologically underpinned does not mean that it is innate. I show that while there may be some genetic determination of fearlessness and callous-unemotionality, these and other features of the personality (...) may arise from developmental failures in the interpersonal reception of their emotions, needs and their sense of self. One is unlikely to be able to own inner experiences if shamed for having them, or if, having them, one does not know how to regulate and soothe. So psychopaths may learn to attend away and suppress them. Rather than a fully inherited difficulty, they may have become unable to reflect on inner states, so meta-emotions and self-reflective emotions like guilt and shame do not fully arise. They retain enough sensitivity to know their difference, and hide. I suggest that psychopaths are characterised by a nested sense of self, arising from the surprising effect of shame on these seemingly shameless characters. They do not have an integrated sense of self across context or across time or in relation to a generalised social other. With a nested sense of self, diminished intensity and scope of affective experience (in both directly experienced and vicarious forms) they lack textured access to a personal, owned and integrated past. Thus they lack the kind of access to the past required for a motivationally compelling planning of the future. They lack the emotional investment in the future that enables us to overcome the motivation to act opportunistically and myopically. These individuals live strangely in time. They have a fugitive sense of self and live nimbly among many pasts. They present an elegant and coherent mask to the person they are addressing in the moment and generate possible futures without conviction. (shrink)

Certain traits, such as intelligence and mental deficiency, have been the focus of eugenic research and propaganda. This focus on such eugenic traits builds on three commonsense ideas: (1) People differ with respect to some of their traits, such as eye-colour and height; (2) Many traits run in families, being passed on from parents to their children; (3) Some traits are desirable, while others are undesirable. These three ideas about traits—their variability, heritability, and desirability—fed (...) the much more controversial eugenicist view that some traits make a person of “good stock”, while others reflect the fact that she comes from “inferior stock”. In combination with the power to influence human reproduction, the systematic study of eugenic traits has thus been thought to provide the basis for human improvement across generations. Three sources reveal which traits were considered important to eugenicists, the public, and decision makers: the research publications of eugenicists, discussions of eugenics in public and popular media, and legislation. (shrink)

Addressing concerns about the treatment of psychopaths, Grant Gillett and Flora Huang (2013) argue that we ought to accept a relational or holistic view of psychopathy and APSD rather than the default biomedical-deficit model since the latter “obscures moral truths about the psychopath”. This change in approach to the psychopath will both mitigate at least some of their moral responsibility for the harms they cause, and force communities to incur special obligations, so they claim, because the harms endured by psychopaths (...) will be understood as part of the cause for the harms they are guilty of committing. However, as I will argue, even if we accept that a relational or holistic approach is better suited to understand psychopathy (which is itself contentious), it does not follow that their responsibility is mitigated in a way that causes communities to have special obligations to them as Gillett and Huang suggest. A diagnosis of APSD or psychopathy does not, prima facie, exculpate an agent or suggest a different way of treating them. My discussion will focus on the widely accepted excusing conditions one must meet for responsibility to me mitigated and conclude, contra Gillett and Huang, that psychopaths are no different from you or I with regards to having a causal history that leads to action. Outside forces play a role in all of our behavior. If the psychopath is owed anything because of the way they have come to understand the world then we all are owed that same debt. (shrink)

Exploratory factor analysis (EFA) of the Psychopathic Personality Inventory (PPI; S. O. Lilienfeld, 1990; S. O. Lilienfeld & B. P. Andrews, 1996) with a community sample has suggested that the PPI subscales may comprise 2 higher order factors (S. D. Benning, C. J. Patrick, B. M. Hicks, D. M. Blonigen, & R. F. Krueger, 2003). However, substantive and structural evidence raises concerns about the viability of this 2-factor model, particularly in offender populations. The authors attempted to replicate the S. (...) D. Benning et al. 2-factor solution using a large (N= 1,224) incarcerated male sample. Confirmatory factor analysis of this model resulted in poor model fit. Similarly, using the same EFA procedures as did S. D. Benning et al., the authors found little evidence for a 2-factor model. When they followed the recommendations of J.-W. van Prooijen and W. A. van der Kloot (2001) for recovering EFA solutions, model fit results provided some evidence that a 3-factor EFA solution could be recovered via confirmatory factor analysis. (shrink)

The emerging neuroscience of psychopathy will have several important implications for our attempts to construct an ethical society. In this article we begin by describing the list of criteria by which psychopaths are diagnosed. We then review four competing neuropsychological theories of psychopathic cognition. The first of these models, Newman’s attentional model, locates the problem in a special type of attentional narrowing that psychopaths have shown in experiments. The second and third, Blair’s amygdala model and Kiehl’s paralimbic model represent (...) the psychopath’s problem as primarily emotional, including reduced tendency to experience fear in normally fearful situations, and a failure to attach the proper significance to the emotions of others. The fourth model locates the problem at a higher level: a failure of psychopaths to notice and correct for their attentional or emotional problems using “executive processes.” In normal humans, decisions are accomplished via these executive processes, which are responsible for planning actions, or inhibiting unwise actions, as well as allowing emotions to influence cognition in the proper way. We review the current state of knowledge of the executive capacities of psychopaths. We then evaluate psychopaths in light of the three major philosophical theories of ethics, utilitarianism, deontological theory, and virtue ethics. Finally, we turn to the difficulty psychopath offenders pose to criminal law, because of the way psychopathy interacts with the various justifications and functions of punishment. We conclude with a brief consideration of the effects of psychopaths on contemporary social structures. (shrink)

Discussions of the functions of biological traits generally take the notion of a trait for granted. Defining this notion is a non-trivial problem. Different approaches to function place different constraints on adequate accounts of the notion of a trait. Accounts of function based on engineering-style analyses allow trait boundaries to be a matter of human interest. Accounts of function based on natural selection have typically been taken to require trait boundaries that are objectively real. After canvassing problems raised by (...) each approach, I conclude with some facts that satisfactory notions of trait must respect. (shrink)

This paper is about evolutionary explanations. They come in different kinds but mostly need traits and functions. Evolutionary theory requires traits to be inheritable although not in a strong genetic sense: ideas of “inheritance pattern” and “inheritable pattern” are explored. Function is also a necessary concept, but complex and diverse, and it lacks causal power on traits. The debate on the evolution of morality is cautious and already far from naive “just-­‐so story” explanations, but theoretical analysis fleshed (...) into morality-­‐related examples can aid towards the development of critically conscious and up-­‐to-­‐date explanatory hypotheses in this field. (shrink)

Although fairness is a key moral trait, limited research focuses on participants' observed fairness behavior because moral traits are generally measured through self-report. This experiment focused on day-to-day interpersonal fairness rather than impersonal justice, and fairness was assessed as observed behavior. The experiment investigated whether a self-reported fairness trait would moderate a situational influence on observed fairness behavior, such that individuals with a stronger fairness trait would be less affected by a situational influence than those with a weaker fairness (...) trait. We used an iterated resource game in which participants could withdraw resources as they chose, and we manipulated the number of resources bogus players withdrew. The number of resources participants withdrew was the behavioral measure of fairness. Results confirmed the expected moderation of the unfairness manipulation by a fairness trait on observed behavior. Those reporting a stronger fairness trait were unaffected by the manipulation, whereas those reporting a weaker fairness trait were more strongly influenced. (shrink)

Bourrat and Griffiths :33, 2018) have recently argued that most of the evidence presented by holobiont defenders to support the thesis that holobionts are evolutionary individuals is not to the point and is not even adequate to discriminate multispecies evolutionary individuals from other multispecies assemblages that would not be considered evolutionary individuals by most holobiont defenders. They further argue that an adequate criterion to distinguish the two categories is fitness alignment, presenting the notion of fitness boundedness as a criterion that (...) allows divorcing true multispecies evolutionary individuals from other multispecies assemblages and provides an adequate criterion to single out genuine evolutionary multispecies assemblages. A consequence of their criterion is that holobionts, as conventionally defined by hologenome defenders, are not evolutionary individuals except in very rare cases, and for very specific host-symbiont associations. This paper is a critical response to Bourrat and Griffiths’ arguments and a defence of the arguments presented by holobiont defenders. Drawing upon the case of the hologenomic basis of the evolution of sanguivory in vampire bats, I argue that Bourrat and Griffiths overlook some aspects of the biological nature of the microbiome that justifies the thesis that holobionts are evolutionarily different to other multispecies assemblages. I argue that the hologenome theory of evolution should not define the hologenome as a collection of genomes, but as the sum of the host genome plus some traits of the microbiome which together constitute an evolutionary individual, a conception I refer to as the stability of traits conception of the hologenome. Based on that conception I argue that the evidence presented by holobiont defenders is to the point, and supports the thesis that holobionts are evolutionary individuals. In this sense, the paper offers an account of the holobiont that aims to foster a dialogue between hologenome advocates and hologenome critics. (shrink)

In order to decide whether a discursive product of human reason corresponds or not to the logical order, one must analyze it in terms of syntactic correctness, consistency, and validity. The first step in logical analysis is formalization, that is, the process by which logical forms of thoughts are represented in different formal languages or logical systems. Although each thought can be properly formalized in different ways, the formalization variants are not equally adequate. The adequacy of formalization seems to depend (...) on several essential features: parsimony, accuracy, transparency, fertility and reliability. Because there is a partial antinomy between these traits, it is impossible to find a perfectly adequate variant of formalization. However, it is possible and preferable to reach a reasonable compromise by choosing the variant of formalization which satisfies all of these fundamental characteristics. (shrink)

I discuss the respective roles of traits and reasons in the explanation of action. I begin by noting that traits and reasons explanations are systematically connected: traits explanations require motivation by reasons. Actions due to psychiatric conditions such as mental disorders cannot be explained by an appeal to traits. Because traits require motivation by reasons, it is often possible to explain one and the same action by an appeal to either the agent's traits or (...) to her reasons. I then ask whether it follows from here that traits and reasons explanations of action are equivalent – though perhaps offered from different points of view – or whether they differ in interesting ways. I argue that the differences are interesting and important – traits and reasons explanations answer different “why” questions regarding action: a reasons explanation tells us what reasons motivated the agent acting; a traits explanation, by contrast, indicates something about an agent’s reasons but tells us something else in addition: it tells us why the agent acted on those as opposed to other available reasons. (shrink)