Joshua Knobe

It is widely agreed that folk psychology plays an important role in people’s moral judgments. For a simple example, take the process by which we determine whether or not an agent is morally blameworthy. Although the judgment here is ultimately a moral one, it seems that one needs to use a fair amount of folk psychology along the way. Thus, one might determine that an agent broke the vase intentionally and therefore conclude that she is blameworthy for breaking it. Here it seems that one starts out with a folkpsychological judgment (that the agent acted intentionally) and then uses it as input to a process that eventually yields a moral judgment (that the agent is blameworthy). Many other cases have a similar structure. In recent years, however, a number of studies have shown that there are also cases in which the arrow of causation goes in the opposite direction. That is, there appear to be cases in which people start out with a moral judgment and then use it as input to a process that eventually yields a folk-psychological judgment (Knobe 2003a, 2003b, 2004, 2005a, 2005b). These findings come as something of a surprise, and it can be difficult to know just what to make of them. My own view is that the findings are best explained by the hypothesis that moral considerations truly do play a role in people’s underlying folk-psychological concepts (Knobe 2003b, 2004, forthcoming). The key claim here is that the effects revealed in recent experiments are not the result of any kind of ‘bias’ or ‘distortion.’ Rather, moral considerations truly do figure in a fundamental way in the issues people are trying to resolve when they grapple with folk-psychological questions. I must confess, however, that not all researchers in the field share this view. Although many have been convinced that moral considerations actually do play a role in folk-psychological concepts, others have suggested that there might be better ways to account for the results of recent experiments..

Past research has identified a number of asymmetries based on moral judgments. Beliefs about what a person values, whether a person is happy, whether a person has shown weakness of will, and whether a person deserves praise or blame seem to depend critically on whether participants themselves find the agent's behavior to be morally good or bad. To date, however, the origins of these asymmetries remain unknown. The present studies examine whether beliefs about an agent's “true self” explain these observed asymmetries based on moral judgment. Using the identical materials from previous studies in this area, a series of five experiments indicate that people show a general tendency to conclude that deep inside every individual there is a “true self” calling him or her to behave in ways that are morally virtuous. In turn, this belief causes people to hold different intuitions about what the agent values, whether the agent is happy, whether he or she has shown weakness of will, and whether he or she deserves praise or blame. These results not only help to answer important questions about how people attribute various mental states to others; they also contribute to important theoretical debates regarding how moral values may shape our beliefs about phenomena that, on the surface, appear to be decidedly non-moral in nature.

Claims about people's intuitions have long played an important role in philosophical debates. The new field of experimental philosophy seeks to subject such claims to rigorous tests using the traditional methods of cognitive science – systematic experimentation and statistical analysis. Work in experimental philosophy thus far has investigated people's intuitions in philosophy of language, philosophy of mind, epistemology, and ethics. Although it is now generally agreed that experimental philosophers have made surprising discoveries about people's intuitions in each of these areas, considerable disagreement remains about the philosophical significance of the key findings. Some have argued that work in experimental philosophy should be assessed by asking whether it can contribute to the kind of inquiry that is normally pursued within analytic philosophy, while others suggest that work in experimental philosophy is best understood as a contribution to a more traditional sort of philosophical inquiry that long predates the birth of analytic philosophy

In earlier work, I relied on a commonly-held view about the relationship between the concept of acting intentionally and the concept of performing a behavior in order to achieve a goal. Eric Wiland responds that it was actually a mistake to rely on this view and that the relationship between these concepts is far more complex than was previously thought. I now think that Wiland may be right to reject my earlier approach, and I therefore provide additional empirical support for his basic claim. 2012 APA, all rights reserved)

Past work has demonstrated that people’s moral judgments can influence their judgments in a number of domains that might seem to involve straightforward matters of fact, including judgments about freedom, causation, the doing/allowing distinction, and intentional action. The present studies explore whether the effect of morality in these four domains can be explained by changes in the relevance of alternative possibilities. More precisely, we propose that moral judgment influences the degree to which people regard certain alternative possibilities as relevant, which in turn impacts intuitions about freedom, causation, doing/allowing, and intentional action. Employing the stimuli used in previous research, Studies 1a, 2a, 3a, and 4a show that the relevance of alternatives is influenced by moral judgments and mediates the impact of morality on non-moral judgments. Studies 1b, 2b, 3b, and 4b then provide direct empirical evidence for the link between the relevance of alternatives and judgments in these four domains by manipulating (rather than measuring) the relevance of alternative possibilities. Lastly, Study 5 demonstrates that the critical mechanism is not whether alternative possibilities are considered, but whether they are regarded as relevant. These studies support a unified framework for understanding the impact of morality across these very different kinds of judgments.

Recent developments in cosmology indicate that every history having a non-zero probability is realized in infinitely many distinct regions of spacetime. Thus, it appears that the universe contains infinitely many civilizations exactly like our own, as well as infinitely many civilizations that differ from our own in any way permitted by physical laws. We explore the implications of this conclusion for ethical theory and for the doomsday argument. In the infinite universe, we find that the doomsday argument applies only to effects which change the average lifetime of all civilizations, and not those which affect our civilization alone.

A growing body of research has examined how people judge the persistence of identity over time—that is, how they decide that a particular individual is the same entity from one time to the next. While a great deal of progress has been made in understanding the types of features that people typically consider when making such judgments, to date, existing work has not explored how these judgments may be shaped by normative considerations. The present studies demonstrate that normative beliefs do appear to play an important role in people's beliefs about persistence. Specifically, people are more likely to judge that the identity of a given entity remains the same when its features improve than when its features deteriorate. Study 1 provides a basic demonstration of this effect. Study 2 shows that this effect is moderated by individual differences in normative beliefs. Study 3 examines the underlying mechanism, which is the belief that, in general, various entities are essentially good. Study 4 directly manipulates beliefs about essence to show that the positivity bias regarding essences is causally responsible for the effect

Since the earliest days of analytic philosophy, it has been a common practice to appeal to intuitions about particular cases. Typically, the philosopher presents a hypothetical situation and then makes a claim of the form: ‘In this case, we would surely say....’ This claim about people’s intuitions then forms a part of an argument for some more general theory about the nature of our concepts or our use of language. One puzzling aspect of this practice is that it so rarely makes use of standard empirical methods. Although philosophers quite frequently make claims about ‘what people would ordinarily say,’ they rarely back up those claims by actually asking people and looking for patterns in their responses. In recent years, however, a number of philosophers have tried to put claims about intuitions to the test, using experimental methods to figure out what people really think about particular hypothetical cases. At times, the results have been extremely surprising. Here I discuss applications of this new methodology to three areas of philosophy — the philosophy of language, the theory of action, and the free will debate

Contemporary moral psychology has been dominated by two broad traditions, one usually associated with Aristotle, the other with Kant. The broadly Aristotelian approach emphasizes the role of childhood upbringing in the development of good moral character, and the role of such character in ethical behavior. The broadly Kantian approach emphasizes the role of freely chosen conscious moral principles in ethical behavior. We review a growing body of experimental evidence that suggests that both of these approaches are predicated on an implausible view of human psychology. This evidence suggests that both childhood upbringing and conscious moral principles have extraordinarily little impact on people's moral behavior. This paper argues that moral psychology needs to take seriously a third approach, derived from Nietzsche. This approach emphasizes the role of heritable psychological and physiological traits in explaining behavior. In particular, it claims that differences in the degree to which different individuals behave morally can often be traced back to heritable differences between those individuals. We show that this third approach enjoys considerable empirical support - indeed that it is far better supported by the empirical data than are either the Aristotelian or Kantian traditions in moral psychology.

The psychological study of ethical reasoning tends to concentrate on a few specific issues, with the bulk of the research going to the study of people's attitudes toward moral rules or the welfare of others. But people's ethical reasoning is also shaped by a wide range of other concerns. Here I focus on the importance that people attach to the ideal of being yourself. It is shown that certain experimental results - results that seemed anomalous and inexplicable to researchers who focused on moral rules and concern for the welfare of others - can be explained quite elegantly as the product of people's attachment to the ideal of 'being yourself'. The success of this explanation then points to the need for a more general inquiry into the role that the ideal of 'being yourself ' plays in people's ethical reasoning.

Suppose that Ann says, “Keith knows that the bank will be open tomorrow.” Her audience may well agree. Her knowledge ascription may seem true. But now suppose that Ben—in a different context—also says “Keith knows that the bank will be open tomorrow.” His audience may well disagree. His knowledge ascription may seem false. Indeed, a number of philosophers have claimed that people’s intuitions about knowledge ascriptions are context sensitive, in the sense that the very same knowledge ascription can seem true in one conversational context but false in another. This purported fact about people’s intuitions serves as one of the main pieces of evidence for epistemic contextualism.

Back when I was a college freshman, I started working as a research assistant to a young graduate student named Bertram Malle. I hadn’t actually known very much about Malle’s work when I first signed up for the position, but as luck would have it, he was a brilliant researcher with an innovative new approach. Malle was interested in understanding people’s ordinary intuitions about intentional action – the way in which people’s ascriptions of belief, desire, awareness and so forth ultimately feed into the process by which people determine whether or not a behavior was performed intentionally. Of course, this sort of question had already been pursued in countless philosophy papers, but Malle wanted to use a different approach. He wanted to study the problem experimentally. We ran a number of experiments together and then co-authored a paper, which was published in a social psychology journal. Yet although I found this type of research interesting and engaging, my real passion lay elsewhere. I was obsessively reading Nietzsche, along with some heavy doses of Kierkegaard, Hume, Marx, Wittgenstein and Aristotle. What I really wanted to do was to continue working on the very same sorts of questions I saw addressed in these thinkers.

A long tradition of psychological research has explored the distinction between characteristics that are part of the self and those that lie outside of it. Recently, a surge of research has begun examining a further distinction. Even among characteristics that are internal to the self, people pick out a subset as belonging to the true self. These factors are judged as making people who they really are, deep down. In this paper, we introduce the concept of the true self and identify features that distinguish people’s understanding of the true self from their understanding of the self more generally. In particular, we consider recent findings that the true self is perceived as positive and moral, and that this tendency is actor-observer invariant and cross-culturally stable. We then explore possible explanations for these findings and discuss their implications for a variety of issues in psychology.

A great deal of fascinating research has gone into an attempt to uncover the fundamental criteria that people use when assigning moral responsibility. Nonetheless, it seems that most existing accounts fall prey to one counterexample or another. The underlying problem, we suggest, is that there simply isn't any single system of criteria that people apply in all cases of responsibility attribution. Instead, it appears that people use quite different criteria in different kinds of cases. [This paper was originally circulated under the title 'Strawsonian Variations.']

Existing research suggests that people's judgments of actual causation can be influenced by the degree to which they regard certain events as normal. We develop an explanation for this phenomenon that draws on standard tools from the literature on graphical causal models and, in particular, on the idea of probabilistic sampling. Using these tools, we propose a new measure of actual causal strength. This measure accurately captures three effects of normality on causal judgment that have been observed in existing studies. More importantly, the measure predicts a new effect ("abnormal deflation"). Two studies show that people's judgments do, in fact, show this new effect. Taken together, the patterns of people's causal judgments thereby provide support for the proposed explanation.

Experimental studies suggest that people’s ordinary causal judgments are affected not only by statistical considerations but also by moral considerations. One way to explain these results would be to construct a model according to which people are trying to make a purely statistical judgment but moral considerations somehow distort their intuitions. The present paper offers an alternative perspective. Specifically, the author proposes a model according to which the very same underlying mechanism accounts for the influence of both statistical and moral considerations. On this model, it appears that ordinary causal judgments are quite different from the sorts of judgments one might find in the systematic sciences.Keywords: Causation; Causal cognition; Experimental philosophy; Cognitive science.

According to models of objectification, viewing someone as a body induces de-mentalization, stripping away their psychological traits. Here evidence is presented for an alternative account, where a body focus does not diminish the attribution of all mental capacities but, instead, leads perceivers to infer a different kind of mind. Drawing on the distinction in mind perception between agency and experience, it is found that focusing on someone's body reduces perceptions of agency but increases perceptions of experience. These effects were found when comparing targets represented by both revealing versus nonrevealing pictures or by simply directing attention toward physical characteristics. The effect of a body focus on mind perception also influenced moral intuitions, with those represented as a body seen to be less morally responsible but more sensitive to harm. These effects suggest that a body focus does not cause objectification per se but, instead, leads to a redistribution of perceived mind.

It is widely believed that the primary function of folk psychology lies in the prediction, explanation and control of behavior. A question arises, however, as to whether folk psychology has also been shaped in fundamental ways by the various other roles it plays in people’s lives. Here I approach that question by considering one particular aspect of folk psychology – the distinction between intentional and unintentional behaviors. The aim is to determine whether this distinction is best understood as a tool used in prediction, explanation and control or whether it has been shaped in fundamental ways by some other aspect of its use.