In this thesis, I explore motivational internalism and externalism, which concern the relationship between moral judgments and motivation. I first introduce the basic terms and different forms of internalism and externalism, including the externalist objections to internalism based on the famous counterexamples. I then argue against externalism by defending and developing Michael Smith’s fetishism argument. I not only respond to the externalist objections to the fetishism argument but also further argue against different externalist explanations of moral motivation that intend to (...) avoid the fetishism charge. Finally, I re-examine different forms of internalism in order to argue for a new form of internalism that can better preserve our internalist intuitions whilst accommodating the externalist counterexamples. My ultimate conclusion will be that the most plausible form of internalism to accept is constitutional, unconditional, relatively strong, direct internalism that is formulated in terms of dispositional desires. (shrink)

People who suffer brain damage to their ventromedial prefrontal cortex have a puzzling psychological profile: they seem to retain high intellect and practical reasoning skills after their brain injuries, but continually make poor decisions in many aspects of their lives. Adina Roskies argues that their behavior is explained by the fact that, although VM patients make correct judgments about what they ought to do, they are entirely unmotivated by those judgments. Roskies thus takes VM patients to be real-world counterexamples to (...) motivational internalism: the thesis that, necessarily, if S judges that she ought to φ in circumstances C, then S is somewhat motivated to φ in C. In this paper, however, I argue that the neuropsychological evidence that Roskies appeals to does not actually show that VM patients are entirely unmotivated by their normative judgments. Rather, I argue, the evidence suggests that VM patients form weaker normative judgments than normals during practical deliberation. And this affords the internalist with a plausible explanation for VM patients’ behavior: because VM patients form weaker normative judgments than normals, they are less motivated by their normative judgments than normals, which allows their decision-making to be overruled by their standing desires for greater and more immediate rewards. (shrink)

This paper examines the empirical and armchair evidence concerning the practical profiles of normative judgments. It then argues that the theory of normative judgment that best explains these practical profiles is a version of cognitivism: subjectivism. The preferred version says, roughly, i) each normative predicate is conventionally associated with a certain conative attitude, and ii) for S to judge that x has normative status N is for S to judge that x has a property picked out by the conative attitude (...) associated with N. In short, having a normative judgment about x semantically necessitates having a conative attitude toward x's properties, to be contrasted with conceptual necessitation, metaphysical necessitation, rational necessitation, etiological necessitation, and other flavors of necessitation. (shrink)

Psychopaths pose a challenge to those who make claims about the strength of moral assessments. These individuals are entirely unmoved by the moral rules that they articulate and purportedly espouse. Psychopaths appear rationally intact but are emotionally broken. In some cases, they commit horrendous crimes yet show no guilt, no remorse. Sentimentalists claim that the empirical evidence about psychopaths’ affective deficits supports that moral judgment is rooted in emotion and that psychopaths do not make genuine moral judgments—they can’t. Here, I (...) challenge an explanation of psychopathy that indicts psychopaths’ emotional impairments alone. I conclude that there are rational requirements for moral motivation and that psychological and neuroscientific research support that psychopaths do not make the grade. (shrink)