Philosophers have urged that considerations about the psychopath’s capacity for practical rationality can help to advance metaethical debates. These debates include the role of rational faculties in moral judgment and action, the relationship between moral judgment and moral motivation, and the capacities required for morally responsible agency. I discuss how the psychopath’s capacity for practical reason features in these debates, and I identify several takeaway lessons from the relevant literature. Specifically, I show how the insights contained therein can illuminate the (...) complex structure of practical rationality, inform our standards for an adequate theory of practical reason, and frame our thinking about the significance of rational capacities in moral theory and social practice. (shrink)

I argue that emotional sensitivity (or insensitivity) has a marked negative influence on ethical perception. Diminished capacities of ethical perception, in turn, mitigate what we are morally responsible for while lack of such capacities may altogether eradicate responsibility. Impairment in ethical perception affects responsibility by affecting either recognition of or reactivity to moral reasons. It follows that emotional insensitivity (together with its attendant impairment in ethical perception) bears saliently on moral responsibility. Since one distinguishing mark of the psychopath is emotional (...) insensitivity, emotional insensitivity and the resulting impairment in moral perception either excuses the psychopath from moral culpability or moderates the degree to which he is culpable. (shrink)

When laws or legal principles mention mental states such as intentions to form a contract, knowledge of risk, or purposely causing a death, what parts of the brain are they speaking about? We argue here that these principles are tacitly directed at our prefrontal executive processes. Our current best theories of consciousness portray it as a workspace in which executive processes operate, but what is important to the law is what is done with the workspace content rather than the content (...) itself. This makes executive processes more important to the law than consciousness, since they are responsible for channeling conscious decision-making into intentions and actions, or inhibiting action.We provide a summary of the current state of our knowledge about executive processes, which consists primarily of information about which portions of the prefrontal lobes perform which executive processes. Then we describe several examples in which legal principles can be understood as tacitly singling out executive processes, including principles regarding defendants’ intentions or plans to commit crimes and their awareness that certain facts are the case, as well as excusatory principles which result in lesser responsibility for those who are juveniles, mentally ill, sleepwalking, hypnotized, or who suffer from psychopathy. (shrink)

Psychopathy is a disorder involving personality and behavioral features associated with a high rate of violent aggression and recidivism. This paper explores potential psychopharmacological therapies to modulate dysfunctional neural pathways in psychopaths and reduce the incidence of their harmful behavior, as well as the ethical and legal implications of offering these therapies as an alternative to incarceration. It also considers whether forced psychopharmacological intervention in adults and children with psychopathic traits manifesting in violent behavior can be justified. More generally, the (...) paper addresses the question of how to weigh the psychopath’s presumptive right to non-interference in his brain and mind against the public interest in avoiding harm. (shrink)

Philosophical compatibilism reconciles moral responsibility with determinism, and some neurolaw scholars think that it can also reconcile legal views about responsibility with scientific findings about the neurophysiological basis of human action. Although I too am a compatibilist, this paper argues that philosophical compatibilism cannot be transplanted “as-is” from philosophy into law. Rather, before compatibilism can be re-deployed, it must first be modified to take account of differences between legal and moral responsibility, and between a scientific and a deterministic world view, (...) and to address a range of conceptual, normative, empirical and doctrinal problems that orbit its capacitarian core. (shrink)

Could neuroimaging evidence help us to assess the degree of a person’s responsibility for a crime which we know that they committed? This essay defends an affirmative answer to this question. A range of standard objections to this high-tech approach to assessing people’s responsibility is considered and then set aside, but I also bring to light and then reject a novel objection—an objection which is only encountered when functional (rather than structural) neuroimaging is used to assess people’s responsibility.

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)