Recent empirical studies have established that disgust plays a role in moral judgment. The normative significance of this discovery remains an object of philosophical contention, however; ‘disgust skeptics’ such as Martha Nussbaum have argued that disgust is a distorting influence on moral judgment and has no legitimate role to play in assessments of moral wrongness. I argue, pace Nussbaum, that disgust’s role in the moral domain parallels its role in the physical domain. Just as physical disgust tracks physical contamination and (...) pollution, so moral disgust tracks social contamination. I begin by examining the arguments for skepticism about disgust and show that these arguments threaten to overgeneralize and lead to a widespread skepticism about the justifiability of our moral judgments. I then look at the positive arguments for according disgust a role in moral judgment, and suggest that disgust tracks invisible social contagions in much the same way as it tracks invisible physical contagions, thereby serving as a defense against the threat of socio-moral contamination. (shrink)

Suppose that disgust can provide evidence of moral wrongdoing. What account of disgust might make sense of this? A recent and promising theory is the social contagion view, proposed by Alexandra Plakias. After criticizing both its descriptive and normative claims, I draw two conclusions. First, we should question the wisdom of drawing so straight a line from biological poisons and pathogens to social counterparts. Second, we don’t need to explain the evidential value of disgust by appealing to what the response (...) tracks. These lessons point toward an alternative: namely, that disgust is a moral heuristic. On the heuristic view, disgust is a trigger for the subconscious use of a particular rule: I show how this view fits with a plausible hypothesis about the social function of disgust, and then apply it to Leon Kass’s famous use of repugnance to criticize cloning. (shrink)

We describe a form of moral artificial intelligence that could be used to improve human moral decision-making. We call it the “artificial moral advisor”. The AMA would implement a quasi-relativistic version of the “ideal observer” famously described by Roderick Firth. We describe similarities and differences between the AMA and Firth’s ideal observer. Like Firth’s ideal observer, the AMA is disinterested, dispassionate, and consistent in its judgments. Unlike Firth’s observer, the AMA is non-absolutist, because it would take into account the human (...) agent’s own principles and values. We argue that the AMA would respect and indeed enhance individuals’ moral autonomy, help individuals achieve wide and a narrow reflective equilibrium, make up for the limitations of human moral psychology in a way that takes conservatives’ objections to human bioenhancement seriously, and implement the positive functions of intuitions and emotions in human morality without their downsides, such as biases and prejudices. (shrink)

In an earlier article, it was found that the terms of preference utilitarianism are insufficiently sound for guiding nursing activity in general, including in relation to nursing involvement in euthanasia. In this article, I shall examine the terms of a more traditional philosophical approach in order to determine the moral legitimacy, or otherwise, of nursing engagement in measures intended to end the lives of patients. In attempting this task, nursing practice is considered in light of what I shall call a (...) ‘nursing‐as‐healing‐praxis’ approach which includes an account of the moral purpose of nursing and the virtues necessary for realizing that purpose. Ultimately, it is concluded that the terms of this approach rule out the involvement of nurses in euthanasia such that if euthanasia can be justified at all, those outside the nursing profession must provide for its administration. (shrink)

Given that biases can distort bioethics work, it has received surprisingly little and fragmented attention compared to in other fields of research. This article provides an overview of potentially relevant biases in bioethics, such as cognitive biases, affective biases, imperatives, and moral biases. Special attention is given to moral biases, which are discussed in terms of (1) Framings, (2) Moral theory bias, (3) Analysis bias, (4) Argumentation bias, and (5) Decision bias. While the overview is not exhaustive and the taxonomy (...) by no means is absolute, it provides initial guidance with respect to assessing the relevance of various biases for specific kinds of bioethics work. One reason why we should identify and address biases in bioethics is that it can help us assess and improve the quality of bioethics work. (shrink)

I argue that much philosophical discussion of moral disgust suffers from two ambiguities: first, it is not clear whether arguments for the moral authority of disgust apply to disgust as a consequence of moral evaluations or instead to disgust as a moralizing emotion; second, it is not clear whether the word ‘moral’ is used in a normative or in a descriptive sense. This lack of clarity generates confusion between ‘fittingness’ and ‘appropriateness’ of disgust. I formulate three conditions that arguments for (...) the moral authority of disgust need—but typically fail—to satisfy, in order to avoid (1) circularity, (2) the naturalistic fallacy, and (3) redundancy. These conditions are, respectively, (1) the identification of the direction of the causal relation between disgust and moral evaluation, (2) a demonstration that disgust is ‘fitting’ to morally relevant properties, and (3) a demonstration that disgust is ‘appropriate’ when elicited by these morally relevant properties. I will also suggest that, regardless of whether an argument for the moral authority of disgust can be made, it would be better to avoid the rather obscure term ‘moral disgust’. (shrink)

The view we defend is that in virtue of its nature, disgust is not fit to do any moral or social work whatsoever, and that there are no defensible uses for disgust in legal or political institutions. We first describe our favoured empirical theory of the nature of disgust. Turning from descriptive to normative issues, we address the best arguments in favour of granting disgust the power to justify certain judgements, and to serve as a social tool, respectively. Daniel Kahan (...) advances a pair of theses that suggest disgust is indispensable (Moral Indispensability Thesis), and so has an important part to play in the functioning of a just, well-ordered society (Conservation Thesis). We develop responses and show how they rebut the arguments given in support of each thesis. We conclude that any society free of social disgust would be more just, reasonable and compassionate. (shrink)