David A. Pizarro

Conservatives are more easily disgusted than liberals

The uniquely human emotion of disgust is intimately connected to morality in many, perhaps all, cultures (Rozin, Lowery, Imada, & Haidt, 1999b). We report two studies suggesting that a predisposition to feel disgust (“disgust sensitivity”) is associated with more conservative political attitudes, especially for issues related to the moral dimension of purity. In the first study, we document a positive correlation between disgust sensitivity and self-reported conservatism in a broad sample of US adults. In Study 2 we show that while disgust sensitivity is associated with more conservative attitudes on a range of political issues, this relationship is strongest for purity-related issues—specifically, abortion and gay marriage.

The Mismeasure of Morals: Antisocial Personality Traits Predict Utilitarian Responses to Moral Dilemmas

Researchers have recently argued that utilitarianism is the appropriate framework by which to evaluate moral judgment, and that individuals who endorse non-utilitarian solutions to moral dilemmas (involving active vs. passive harm) are committing an error. We report a study in which participants responded to a battery of personality assessments and a set of dilemmas that pit utilitarian and non-utilitarian options against each other. Participants who indicated greater endorsement of utilitarian solutions had higher scores on measures of Psychopathy, machiavellianism, and life meaninglessness. These results question the widely-used methods by which lay moral judgments are evaluated, as these approaches lead to the counterintuitive conclusion that those individuals who are least prone to moral errors also possess a set of psychological characteristics that many would consider prototypically immoral.

Deciding Versus Reacting: Conceptions of Moral Judgment and the Reason-Affect Debate

Recent approaches to moral judgment have typically pitted emotion against reason. In an effort to move beyond this debate, we propose that authors presenting diverging models are considering quite different prototypical situations: those focusing on the resolution of complex dilemmas conclude that morality involves sophisticated reasoning, whereas those studying reactions to shocking moral violations find that morality involves quick, affect-laden processes. We articulate these diverging dominant approaches and consider three directions for future research (moral temptation, moral self-image, and lay understandings of morality) that we propose have not received sufficient attention as a result of the focus on these two prototypical situations within moral psychology.

Disgust Sensitivity, Political Conservatism, and Voting

In two large samples (combined N = 31,045), we found a positive relationship between disgust sensitivity and political conservatism. This relationship held when controlling for a number of demographic variables as well as the “Big Five” personality traits. Disgust sensitivity was also associated with more conservative voting in the 2008 U.S. presidential election. In Study 2, we replicated the disgust sensitivity–conservatism relationship in an international sample of respondents from 121 different countries. Across both samples, contamination disgust, which reflects a heightened concern with interpersonally transmitted disease and pathogens, was most strongly associated with conservatism.

Asymmetry in Judgments of Moral Blame and Praise The Role of Perceived Metadesires

An important consideration in judging the blameworthiness (or praiseworthiness) of an action is whether the agent had sufficient control over it. In three experiments, we investigated judgments of moral blame and praise elicited when individuals were presented with vignettes describing actions that were performed either carefully and deliberately or impulsively and uncontrollably. Experiment 1 uncovered an asymmetry between judgments of positive versus negative actions—negative impulsive actions elicited a discounting of moral blame, but positive impulsive actions did not elicit a discounting of moral praise. Experiments 2 and 3 showed that this asymmetry arises because individuals judge agents on the basis of their metadesires (the degree to which the agents embrace or reject the impulses leading to their actions). Individuals assume that an agent would embrace an uncontrollable positive impulse, and reject an uncontrollable negative impulse.

Causal deviance and the attribution of moral responsibility

Abstract Are current theories of moral responsibility missing a factor in the attribution of blame and praise? Four studies demonstrated that even when cause, intention, and outcome (factors generally assumed to be sufficient for the ascription of moral responsibility) are all present, blame and praise are discounted when the factors are not linked together in the usual manner (i.e., cases of “causal deviance”). Experiment 4 further demonstrates that this effect of causal deviance is driven by intuitive gut feelings of right and wrong, not logical deliberation.

Disgusting smells cause decreased liking of gay men

An induction of disgust can lead to more negative attitudes toward an entire social group: Participants who were exposed to a noxious ambient odor reported less warmth toward gay men. This effect of disgust was equally strong for political liberals and conservatives, and was specific to attitudes toward gay men-there was only a weak effect of disgust on peoples warmth toward lesbians, and no consistent effect on attitudes toward African Americans, the elderly, or a range of political issues.

Dirty Liberals! Reminders of Physical Cleanliness Influence Moral and Political Attitudes

Many moral codes place a special emphasis on bodily purity, and manipulations that directly target bodily purity have been shown to influence a variety of moral judgments. Across two studies, we demonstrated that reminders of physical purity influence specific moral judgments regarding behaviors in the sexual domain as well as broad political attitudes. In Study 1, individuals in a public setting who were given a reminder of physical cleansing reported being more politically conservative than did individuals who were not given such a reminder. In Study 2, individuals reminded of physical cleansing in the laboratory demonstrated harsher moral judgments toward violations of sexual purity and were more likely to report being politically conservative than control participants. Together, these experiments provide further evidence of a deep link between physical purity and moral judgment, and they offer preliminary evidence that manipulations of physical purity can influence general (and putatively stable) political attitudes.

On Disgust and Moral Judgment

Despite the wealth of recent work implicating disgust as an emotion central to human morality, the nature of the causal relationship between disgust and moral judgment remains unclear. We distinguish between three related claims regarding this relationship, and argue that the most interesting claim (that disgust is a moralizing emotion) is the one with the least empirical support.

Message Framing and Pap Test Utilization among Women Attending a Community Health Clinic

In a randomized experiment, women (N = 441) watched either a loss- or gain-framed video emphasizing the prevention or detection functions of the Pap test to test the hypothesis that loss- and gain-framed messages differentially influence health behaviors depending on the risk involved in performing the behavior. As predicted, loss-framed messages emphasizing the costs of not detecting cervical cancer early (a risky behavior) and gain-framed messages emphasizing the benefits of preventing cervical cancer (a less risky behavior) were most persuasive in motivating women to obtain a Pap test.