Shaun Nichols

Occam's razor—the idea that all else being equal, we should pick the simpler hypothesis—plays a prominent role in ordinary and scientific inference. But why are simpler hypotheses better? One attractive hypothesis known as Bayesian Occam's razor is that more complex hypotheses tend to be more flexible—they can accommodate a wider range of possible data—and that flexibility is automatically penalized by Bayesian inference. In two experiments, we provide evidence that people's intuitive probabilistic and explanatory judgments follow the prescriptions of BOR. In particular, people's judgments are consistent with the two most distinctive characteristics of BOR: They penalize hypotheses as a function not only of their numbers of free parameters but also as a function of the size of the parameter space, and they penalize those hypotheses even when their parameters can be “tuned” to fit the data better than comparatively simpler hypotheses.

Self-control is essential to the Buddhist soteriological project, but it is not immediately clear how we can make sense of it in light of the doctrine of no-self. Exercising control over our actions, thoughts, volitions, and emotions seems to presuppose a conception of self and agency that is not available to the Buddhist. Thus, there seems to be a fundamental mismatch in the practical instructions for exercising control in the Buddhist texts and the doctrine of no-self. In this paper, we develop and defend a general account of self-control that coheres with Abhidarma Buddhism. We defend the Buddhist against recent arguments that self-control depends on an executive self; instead, for the Buddhist, the psychology of self-control must be ‘horizontal’ (for example, one desire winning out over another). However, the characterization of the psychological process isn’t sufficient for a Buddhist theory of self-control. For the Buddhist account is substantive. According to Buddhism, a paradigmatic instance of self-control is an episode in which the desire that wins is a desire that conforms to Buddhist values; by contrast, an episode is not an instance of self-control if the desire that wins is opposed to Buddhist values. We also argue that there are significant resources on which the Buddhist can draw for enhancing self-control despite the denial of self.

The idea that we have special access to our own mental states has a distinguished philosophical history. Philosophers as different as Descartes and Locke agreed that we know our own minds in a way that is quite different from the way in which we know other minds. In the latter half of the twentieth century, however, this idea carne under serious attack, first from philosophy and more recently from developmental psychology. The attack from developmental psychology arises from the growing body of work on “mindreading,” the process of attributing mental states to people. During the last fifteen years, the processes underlying rnindreading have been a major focus of attention in cognitive and developmental psychology. Most of this work has been concerned with the processes underlying the attribution of mental states toother people.However, a number of psychologists and philosophers have also proposed accounts of the mechanisms underlying the attribution of mental states tooneself.This process ofreading one's own mindorbecoming self-awarewill be our primary concern in this paper.

The aim of this chapter is to address the role of memory in past-life convictions. Although it is commonly accepted in the modern media - and popular western culture more generally - that people believe they have lived before because the memory contains detailed verifiable facts, little is known about how people actually reason about the veracity of their previous existence. To our knowledge, the current project is the most extensive research that probes the role of memory in past life convictions. More specifically, we explore two questions. First, to what extent does memory lead to past-life belief, and is this conviction based on external validation or via the episodic sense of personal identity contained in the memory? Second, what is the conception of self on which one's current self is taken to be the same as the past-life self? In what follows, we propose that memory plays an important role in convincing people that they have lived before. Fundamentally, this memory is episodic insofar as it represents the event as happened to the encoder. This memory contrasts with semantic memory - memory of facts...Further, we contend that it is the episodic sense of personal identity (rather than external validation) that typically contributes to the belief in a past life. Finally, we argue that the conception of self implicated in past-life belief is the non-trait conception. Of course, this fits naturally with the idea that the belief in a past life issues partly from the episodic sense of identity, since it is the non-trait conception of self that is implicated in the episodic sense of identity... Our proposal in this chapter can be construed as a psychological extension of Reid's point in the context of past-life belief. People assume that they are the same person as someone in earlier times, despite large variations in the traits between those individuals, and they think this partly because of the testimony of their episodic memory. If our account is correct, then it makes the belief in a past life less bizarre, at least psychologically. For we are suggesting that the episodic sense of personal identity that led to your conviction that you existed at the time of your sixteenth birthday celebrations some decades ago, is also involved in other people's convictions that they existed 200 years ago. This proposal is also situated in recent cognitive approaches to the study of religion and religious experiences, which suggests that extraordinary convictions are often underpinned by the ordinary processes of social cognition (e.g. see Barrett 2000; Barrett 2007; Boyer 2001; Lawson and McCauley 1990; for reincarnation, see White Forthcoming-a,-b).

La philosophie expérimentale est un mouvement récent qui tente de faire progresser certains débats philosophiques grâce à l'utilisation de méthodes expérimentales. À la différence de la philosophie conventionnelle qui privilégie l'analyse conceptuelle ou la spéculation, la philosophie expérimentale préconise le recours aux études empiriques pour mieux comprendre les concepts philosophiques. Apparue il y a une dizaine d'années dans les pays anglo-saxons, cette approche constitue actuellement l'une des branches les plus dynamiques de la philosophie contemporaine. L'objectif de cet ouvrage est d'offrir un contact direct avec les travaux les plus connus et les plus discutés des philosophes expérimentaux. Il regroupe ainsi dix textes représentatifs de ce domaine jeune, mais déjà florissant, et couvre une large partie du champ philosophique contemporain (philosophie du langage, théorie de la connaissance, conscience, théorie de l'action, éthique et philosophie des sciences).

Is it wrong to torture prisoners of war for fun? Is it wrong to yank on someone’s hair with no provocation? Is it wrong to push an innocent person in front of a train in order to save five innocent people tied to the tracks? If you are like most people, you answered "yes" to each of these questions. A venerable account of human moral judgment, influential in both philosophy and psychology, holds that these judgments are underpinned by internally represented principles or rules and reasoning about whether particular cases fall under those rules. Recently, this view has come under sustained attack from multiple quarters, and now looks to be in danger of being discarded. In this chapter we consider this evidence, and find that it does not support the elimination of rules from moral psychology

The manifest fact of experiential unity—namely, that a single experience often seems to be composed of multiple features and multiple objects—was lodged as a key objection to the Buddhist no-self view by Nyāya philosophers in the classical Indian tradition. We revisit the Nyāya-Buddhist debate on this issue. The early Nyāya experiential unity arguments depend on diachronic unification of experiences in memory, but later Nyāya philosophers explicitly widened the scope to incorporate new unity arguments that invoke synchronic unification in experiences. We argue that classical responses to this objection in the Buddhist traditions are not satisfactory. We offer a new solution on behalf of the Buddhists, with some help from cognitive sciences. We argue that there are different kinds of experiential unity and that, once we distinguish between these kinds, the Nyāya argument becomes difficult to sustain.

We develop a partial solution to the meta-problem of consciousness that builds on our previous psychological account of an apparent explanatory gap. Drawing from empirical work on explanatory cognition and conceptual development, we sketch a profile of cognitive systems for which primitive concepts facilitate explanatory gaps. This account predicts that there will be multiple explanatory gaps. We suggest that this is borne out by the existence of primitivist theories in multiple philosophical domains.

When people learn normative systems, they do so based on limited evidence. Many of the possible actions that are available to an agent have never been explicitly permitted or prohibited. But people will often need to figure out whether those unspecified actions are permitted or prohibited. How does a learner resolve this incompleteness? The learner might assume if an action-type is not expressly forbidden, then acts of that type are permitted. This closure principle is one of Liberty. Alternatively, the learner might assume that if an action-type is not expressly permitted, then acts of that type are prohibited. This closure principle would be one of Residual Prohibition (Mikhail, 2011). On the basis of principles of pedagogical sampling (e.g., Shafto, Goodman, & Griffiths, 2014), we predicted that participants would infer the Liberty Principle (LP) when trained on prohibitions, and they would infer the Residual Prohibition Principle when trained on permissions. This is exactly what we found across several experiments. We also found a bias in favor of Liberty insofar as participants trained on both a prohibition and a permission rule tended still to infer the LP. However, we also found that if an action is potentially harmful, this diminishes the tendency to infer the LP.

Retributivist accounts of punishment maintain that it is right to punish wrongdoers, even if the punishment has no future benefits. Research in experimental economics indicates that people are willing to pay to punish defectors. A complementary line of work in social psychology suggests that people think that it is right to punish wrongdoers. This work suggests that people are retributivists about punishment. However, all of the extant work contains an important potential confound. The target of the punishment is expected to be aware of the punitive act. Thus, it's possible that people punish because they want to communicate something to the wrongdoer, e.g. disapproval, the presence of a norm, etc. In three studies, we examine whether people will punish even when the punishee will be ignorant. We find that people are no less likely to punish when the punishee will be ignorant. This finding emerges both in a survey study and in a monetized behavioural decision study.

Kühberger et al. show that producing the Langer effect is considerably more difficult than has been assumed. Although their results clearly demonstrate a need for further exploration of the Langer effect, none of their arguments undermines the evidence against simulation theory that we presented in Nichols et al. (1996). In our study the actor subjects did show an effect, but the prediction subjects did not predict it, despite the fact that they were provided with all the details of the actor's situation. Further, we report additional evidence that corroborates our empirical case against simulation theory.

Recently, the fields of empirical and experimental philosophy have generated tremendous excitement, due to unexpected results that have challenged philosophical dogma. Responding to this trend, Philosophy: Traditional and Experimental Readings is the first introductory philosophy reader to integrate cutting-edge work in empirical and experimental philosophy with traditional philosophy. Featuring coverage that is equal parts historical, contemporary, and empirical/experimental, this topically organized reader provides students with a unique introduction to both the core and the vanguard of philosophy

This book offers a broad, systematic philosophical approach to mental disorder. The authors spend the first half of the book presenting their basic philosophical allegiances, and they go on to apply their philosophical approach to mental disorder. As the authors note, psychiatry has been largely neglected by contemporary philosophy of mind, and this book is a laudable attempt to rectify the situation by producing a sustained and clinically well-informed philosophical treatment of mental disorder.

It is well-known that people will adjust their first-order beliefs based on observations of others. We explore how such adjustments interact with second-order beliefs regarding universalism and relativism in a population. Across a range of simulations, we show that populations where individuals have a tendency toward universalism converge more quickly in coordination problems, and generate higher total payoffs, than do populations where individuals have a tendency toward relativism. Thus, in contexts where coordination is important, belief in universalism is advantageous. However, we also show, across a range of simulations, that universalism will enshrine inequalities and eliminate diversity, and in these cases it seems that relativism has its own advantages.

ABSTRACT The manifest fact of experiential unity—namely, that a single experience often seems to be composed of multiple features and multiple objects—was lodged as a key objection to the Buddhist no-self view by Nyāya philosophers in the classical Indian tradition. We revisit the Nyāya-Buddhist debate on this issue. The early Nyāya experiential unity arguments depend on diachronic unification of experiences in memory, but later Nyāya philosophers explicitly widened the scope to incorporate new unity arguments that invoke synchronic unification in experiences. We argue that classical responses to this objection in the Buddhist traditions are not satisfactory. We offer a new solution on behalf of the Buddhists, with some help from cognitive sciences. We argue that there are different kinds of experiential unity and that, once we distinguish between these kinds, the Nyāya argument becomes difficult to sustain.

The basis of property rights is a central problem in political philosophy. The core philosophical dispute concerns whether property rights are natural facts, independent of human conventions. In this article, we examine adult judgments on this issue. We find evidence that familiar property norms regarding external objects (e.g., fish and strawberries) are treated as conventional on standard measures of authority dependence and context relativism. Previous work on the moral/conventional distinction indicates that people treat property rights as moral rather than conventional (e.g., Dahl & Waltzer, 2020; Nucci & Turiel, 1993; Tisak & Turiel, 1984). However, these studies explicitly assume that one person owns property that another steals. Study 1 explores judgments of authority dependence regarding ownership in cases that explicitly appeal to stealing and prior ownership as compared to cases that omit such explicit appeals. We find that participants tend to treat ownership as authority dependent when explicit appeals to stealing are absent, but not when the explicit appeals are present. Study 2 examines intuitions about authority dependence of ownership violations as compared to canonical conventional and harm-based moral violations. We find that ownership violations are treated as more authority dependent than harm-based moral violations. This all suggests that some central property norms are treated as conventional. However, we also find that the conventionality of property norms is restricted in several ways. In study 3, we find that people do not treat norms of self-ownership as conventional. Other people cannot take your hair or skin cells even if the teacher says it's okay. Study 4 uses a measure of context relativism to examine the conventionality of ownership norms, comparing different possible norms of ownership. We find that participants regard takings that are violations in their own culture as permissible in other cultures; however, only some foreign norms are deemed acceptable. In study 5 we find another limitation – participants think it's impermissible to take resources from someone based on a new property norm that is retrospectively imposed. Finally, in study 6 we explore whether some takings might be judged to be morally (non-conventionally) wrong as a function of scarcity. We find that when asked about another culture that allows taking, participants tend to say that taking a food item from the person who caught it is permissible when the food is plentiful, but not when the food is scarce.

Introspection plays a crucial role in Modern philosophy in two different ways. From the beginnings of Modern philosophy, introspection has been used a tool for philosophical exploration in a variety of thought experiments. But Modern philosophers also tried to characterize the nature of introspection as a psychological phenomenon. In contemporary philosophy, introspection is still frequently used in thought experiments. And in the analytic tradition, philosophers have tried to characterize conceptually necessary features of introspection.2 But over the last several decades, philosophers have devoted relatively little attention to the cognitive characteristics of introspection. This has begun to change, impelled largely by a fascinating body of work on how children and autistic individuals understand the mind.3 In a pair of recent papers, Stephen Stich and I have drawn on this empirical work to develop an account of introspection or self-awareness.4 In this paper, I will elaborate and defend this cognitive theory of introspection further and argue that if the account is right, it may have important ramifications for psychological and philosophical debates over the self. Since the paper will cover a rather diverse set of issues, let me begin by mapping out the structure of what follows. In section II, I will set out the most prominent account of introspection in the recent literature, the Theory Theory of self-awareness, according to which.

Abstract:When people reason on the basis of moral rules, do they suppose that in the absence of a prohibitory rule they are free to act, or do they suppose that morality always requires a justification establishing a permission to act? In this essay we present a series of learning experiments that indicate when learners tend to close their system on the basis of natural liberty and when on the principle of residual prohibition. Those who are taught prohibitory rules tend to infer natural liberty while those taught permission rules tend to infer residual prohibition. In mixed cases, where learners are taught both types of rules, there is some tendency to suppose that natural liberty is the default. Both natural liberty and its denial can be learned; is there a reason to adopt one system of moral rules or the other? We argue that systems of social morality based on a principle of natural liberty have a striking advantage over their competitors: they are well adapted to effectively exploring the constant novel circumstances that arise in open, dynamic, societies.

Thought experiments about the self seem to lead to deeply conflicting intuitions about the self. Cases imagined from the 3rd person perspective seem to provoke different responses than cases imagined from the 1st person perspective. This paper argues that recent cognitive theories of the imagination, coupled with standard views about indexical concepts, help explain our reactions in the 1st person cases. The explanation helps identify intuitions that should not be trusted as a guide to the metaphysics of the self.