There are some distinct methodological challenges, and possible pitfalls, for neuroethics when it evaluates neuroscientific results and links them to issues such as moral or legal responsibility. Some problems emerge in determining the requirements for responsibility. We will show how philosophical proposals in this area need to interact with legal doctrine and practice. Problems can occur when inferring normative implications from neuroscientific results. Other problems arise when it is not recognized that data about brain anatomy or physiology are relevant to (...) the ascription of responsibility only when they are significantly correlated with the psychological capacities contemplated by the legal formulations of responsibility. We will demonstrate this by considering two significant cases concerning psychopathy. Some paradigms that aim at measuring higher-order capacities, such as moral understanding, have limited validity. More robust paradigms for the study of learning in restricted controlled conditions, on the other hand, have limited ecological validity across individuals and context to be of any use for the law. (shrink)

Psychopathy, executive functions, and neuropsychological data: a response to Sifferd and Hirstein.

In their paper “Is psychopathy a mental disease?”, Thomas Nadelhoffer and Walter Sinnott-Armstrong argue that according to any plausible account of mental disorder, neural and psychological abnormalities correlated with psychopathy should be regarded as signs of a mental disorder. I oppose this conclusion by arguing that at least on a naturalistically grounded account, such as Wakefield’s ‘Harmful Dysfunction’ view, currently available empirical data and evolutionary considerations indicate that psychopathy is not a mental disorder.

The question of whether psychopaths are criminally and morally responsible has generated significant controversy in the literature. In this paper, we discuss what relevance a psychopathy diagnosis has for criminal responsibility. It has been argued that figuring out whether psychopathy is a mental illness is of fundamental importance, because it is a precondition for psychopaths’ eligibility to be excused via the legal insanity defense. But even if psychopathy counts as a mental illness, this alone is not sufficient to show the (...) insanity defense is applicable; it must also be shown that, as a result of the illness, specific deficits in moral understanding or control are present. In this paper, we show that a diagnosis of psychopathy will generally not indicate that a defendant is eligible for an insanity defense. This is because the group of individuals subsumed under the diagnosis is so heterogeneous that while some psychopaths do show significant impairments in affect and control which may impact on their responsibility, many psychopaths are not incapacitated in a way relevant to responsibility. (shrink)

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

Many argue that psychopaths suffer from a stable pattern of neurobiological dysfunctions that should be taken into account in sentencing and treatment decisions. These arguments are compelling only if the neuroimaging data are consistent. It is possible that such consistency is created by reviewers who ignore contradictory findings. To evaluate this, we examined how accurately forensic literature reported neuroimaging findings on psychopaths in a theoretically central structure – the amygdala. We found that forensic commentators consistently under-reported null-findings, creating a misleading (...) impression of the data’s consistency. We discuss this misrepresentation from the perspectives of spin and neurohype, and examine their causes and consequences. (shrink)

Das Themengebiet der Psychopathie hat in den letzten Jahrzehnten vor allem durch Filme, die sich mit (vermeintlich) psychopathischen Charakteren beschäfti- gen, ein breites gesellschaftliches Interesse erfahren (vgl. Swart 2016). Holly- woods Blockbuster zeigen hier Beispiele hochintelligenter (z. B. Hanibal Lector in „Das Schweigen der Lämmer“) oder sexuell devianter (z. B. Patrick Bateman in „American Psycho“) Serienkiller, welche aus klinischer Sicht tatsächlich hoch psy- chopathische Tendenzen aufweisen. Demgegenüber werden psychisch andersartig beeinträchtigte Filmcharaktere, wie z. B. Norman Bates („Psycho“) oder Travis Bickel (...) („Taxi Driver“) wohl aufgrund ihrer schreckenseinflößenden Wirkung im allgemeinen Sprachgebrauch oft als Psychopathen bezeichnet, obwohl ihre Symptome aus forensisch-psychiatrischer Sicht eher schizoiden Wahnvorstellungen ähneln und keine Anzeichen einer klas- sischen Psychopathie darstellen (vgl. Leistedt / Linkowski 2014). Auch Medienbe- richte über tatsächlich existierende, brutale (z.B. Serienkiller Ted Bundy) oder dreiste (z.B. Anlagebetrüger Bernard Madoff) Figuren der Zeitgeschichte haben die konzeptionelle Unübersichtlichkeit des in der Öffentlichkeit wahrgenommenen Bildes der Psychopathie befeuert. Und sogar in medizinischen bzw. psychiatri- schen Kreisen scheint eine uneinheitliche Sichtweise die Konfusion um das Stö- rungsbild Psychopathie weiter anzufachen (vgl. Berg et al. 2013). (shrink)

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

We argue that philosophy has an important role to play in bridging certain social practices with certain scientific advancements. Specifically, we describe such a role by focusing on the issue of how and whether neuropsychological data concerning psychopathic offenders reflect on their criminal culpability. We offer some methodological requirements for this type of philosophical application. In addition, we show how it might help in addressing the problem of determining the criminal responsibility of psychopathic offenders.