Theoretical debates around the concept of self-deception revolve around identifying the conditions for a behavior to qualify as self-deception. Experiments 1 and 2 revealed that various candidate features—such as intent, belief change, and motive—are treated as sufficient, but non-necessary, conditions according to the lay concept of self-deception. This led us to ask whether there are multiple lay concepts, such that different participants endorse competing theories (the disagreement view), or whether individual participants assign partial weight to various features and consequently waver (...) in cases of middling similarity (the conflict view). In Experiment 3, by-participant regression models uncovered that most participants additively consider multiple characteristics of the prototype of self-deception, while only a minority of participants treat a characteristic (or a combination thereof) as necessary and sufficient. In sum, by disambiguating interpersonal disagreement and intrapersonal conflict in a within-subjects design, the present experiments indicate that the lay concept may primarily exhibit a prototype structure. In closing, we suggest that future research deploying this method may help to explain why experimental research on philosophical concepts often engenders partial support for competing theories. (shrink)

Unlike the question of whether self-deception can be understood on the model of other-deception, the relationship between the two phenomena at the level of practice is hardly ever explored. Other-deception can support self-deception and vice versa. Self-deception often affects not only the beliefs and behavior of the self-deceiving person but also the beliefs and behavior of others who may become accomplices of self-deception. As I will show, however, it is difficult to describe this supportive relationship between self-deception and the deception (...) of others without conceptual contradiction. While “deflationary” approaches offer a convincing way to avoid the so-called paradoxes of self-deception, they do not resolve the conceptual tensions that arise here. I conclude by outlining a solution. (shrink)

According to the pragmatic hypothesis testing theory, how much evidence we require before we believe something varies depending on the expected costs of falsely believing and disbelieving it. This theory has been used in the self-deception debate to explain our tendencies towards self-deceptive belief formation. This article argues that the application of this theory in the self-deception debate has overlooked the distinction between belief and acceptance, and that the theory in all likelihood models acceptance rather than belief, in which case (...) it is probably not relevant to the explanation of self-deception. It is suggested, however, that doxastic error costs might be relevant to explaining some types of self-deception, though they feature in an evolutionary explanation of it rather than a psychological one. (shrink)

A familiar puzzle about self-deception concerns how self-deception is possible in light of the paradoxes generated by a plausible way of defining it. A less familiar puzzle concerns how a certain type of self-deception—being self-deceived about one's own intentional mental state—is possible in light of a plausible way of understanding the nature of self-knowledge. According to this understanding, we ordinarily do not infer our mental states from evidence, but then it's puzzling how this sort of self-deception could occur given that (...) self-deception arises from the mistreatment of evidence. This article argues that to accommodate this kind of self-deception we should accept that sometimes ordinary self-knowledge is inferential, but that this idea needn’t be so unappealing. In particular, by showing that such inferential self-knowledge can be both ‘transparent’ and ‘direct’, the article argues that it need not imply having an abnormal, ‘alienated’ relation to the mental state. (shrink)

Despite how revered Socrates is among many educators nowadays, he can seem in the end to be a poor model for them, particularly because of how often he refutes his interlocutors and poses leading questions. As critics have noted, refuting people can turn them away from inquiry instead of drawing them in, and being too directive with them can squelch independent thought. I contend, though, that Socrates' practices are more defensible than they often look: although there are risks in refuting (...) people and posing leading questions, Socrates has sensible ways of minimizing the risks, ways that are feasible even for teachers nowadays, and there are times when the risks are worth taking. I illustrate my point by discussing Plato's _Meno_. (shrink)

The folk explanation of self-deception is that one mental subsystem deceives another. Deflationists appeal to motivated irrationality rather than deceptive subsystems to offer nifty accounts of many sorts of self-deception. However, I shall show that deflationists cannot explain the self-deception embedded within (1) impulsive, (2) vacillating, or (3) long-term akrasia. These akratic actions are respectively too short, too variable, or too long for motivated irrationality to do its dirty work. Nor can deflationists explain the self-deception required for motivating oneself to (...) (4) suspend disbelief and lose oneself in fiction, (5) bother to make negligible contributions to very large projects, (6) accomplish daunting tasks by taking them one day at a time, or (7) cope with psychologically traumatic truths. In these four cases, the truth is undeniable, yet agents must also hold contravening false beliefs. Thus, the folk explanation of self-deception is preferable, despite its invocation of deceptive mental subsystems. (shrink)

The essential task of the investigation of self-deception is nothing more than establishing the boundary of it, herein known as the distinction problem of self-deception. Such a boundary is necessary for distinguishing the phenomenon of self-deception from other similar phenomena, especially wishful thinking, and sheds light on the future research of other theoretical questions posed by the phenomenon. Although philosophers have reached a vague consensus on certain necessary elements involved in the phenomenon of self-deception, there is no general agreement on (...) their details, leading to a lack of canonical literature regarding the question of what makes self-deception a unique phenomenon. In this thesis, I begin by attempting to re-establish the initial definition of self-deception by illustrating the vague consensus in the current discussion of self-deception. Then, several representative views are examined to uncover the reason for their failure to capture the distinction between self-deception and other kinds of irrationality. These findings are then used to clarify what the basic structure of self-deception should be. Finally, I develop an account revealing that the distinction problem is related to the study of the necessary attitude involved in self-deception. My analysis shows that a special kind of instability inherent in the necessary attitude involved in self-deception is the key to establishing self-deception as a distinctive case of motivated irrationality. (shrink)