Imperfect Cognitions

Together with Ema Sullivan-Bissett , Matteo Mameli and Matthew Broome , I have written a chapter on delusions for a new volume on gradualism in psychiatry: Vagueness in Psychiatry , edited by Geert Keil, Laura Keuck and Rico Hauswald for Oxford University Press. Matteo Mameli In the paper we argue that it is difficult to distinguish pathological and non-pathological beliefs on the basis of their epistemic features. Then we consider some of the moral and legal implications of our thesis, focusing in particular on the role of beliefs in the attribution of moral responsibility and legal accountability for criminal actions that are motivated by those beliefs. Ema Sullivan-Bissett Delusions fail to meet many epistemic standards. It might look like they are not beliefs which are aimed at truth or governed by a norm of truth, that they are not responsive to evidence in the ways which ordinary beliefs typically are. But non-delusional beliefs also share such features. For instan

This post is the final one in our series summarizing the contributions to the special issue on unrealistic optimism 'Unrealistic Optimism -Its nature, causes and effects' . The paper by Anneli Jefferson , Lisa Bortolotti and Bojana Kuzmanovic looks at the nature of unrealistically optimistic cognitions and the extent to which they are irrational. Anneli Jefferson We know that people have a tendency to expect that their future will be better than that of others or better than seems likely on an objective measure of probability. But are they really expressing a belief that the future will be good, or should we see these expressions of optimism as hopes or possibly even just expression of desires for the future? Maybe when I say ‘My marriage has an 85% likelihood of lasting ‘til death do us part’’, what I am actually saying is ‘I really, really want my marriage to last.’ If what is expressed is a desire rather than a belief, we do not need to worry that we are systemati

This post is by James Shepperd , Gabrielle Pogge and Jennifer Howell who recently authored a paper entitled, " Assessing the Consequences of Unrealistic Optimism: Challenges and Recommendations ", to be published in a special issue of Consciousness & Cognition on unrealistic optimism , guest-edited by Anneli Jefferson, Bojana Kuzmanovic and Lisa Bortolotti. In this post, James, Gabrielle and Jennifer summarise the content of their new paper. James Researchers have argued that unrealistic optimism (UO) can have both desirable and undesirable consequences. Yet, understanding the consequences of UO is a remarkably difficult. We identified eight challenges faced by researchers wanting to understand the consequences of UO. Gabrielle Unrealistic comparative optimism might be overstated . Recent evidence suggests that measurement decisions may exaggerate both the frequency and magnitude of UO in research—UO may neither be as common or sizable as once believed.

Recently I have become interested in the effects of optimism on relationship satisfaction. Unrealistic optimism about romantic relationships is very widespread. Even people who are aware of divorce rates in the society in which they live tend to overestimate the longevity of their relationships. Unrealistically optimistic predictions about the future of our romantic relationships may be supported by other positive illusions, for instance, the superiority illusion and the love-is-blind illusion . According to the superiority illusion, which is a form of self-enhancement, we tend to perceive our relationship as better than most relationships. According to the love-is-blind illusion, we tend to be blind to our partner’s faults, and perceive the partner as better than average in a number of domains including intelligence and attractiveness.  But for  Murray and colleagues (1996)  such illusions are not obviously a bad thing, as people who have an optimistic disposition towards

On December 16th and 17th, the Cognitive Irrationality project hosted a workshop on beliefs that feel good, organized by Marie van Loon, Melanie Sarzano and Anne Meylan. This very interesting event dealt with beliefs that feel good but are epistemically problematic in some way, as well as with beliefs for which this is not the case. While the majority of talks and discussions focused on problematic cases, such as wayward believers, self-deceptive beliefs and unrealistically optimistic beliefs, there was also a discussion of epistemic virtues and the relation between scepticism and beliefs in the world. Below, I summarize the main points made in the talks. Quassim Cassam probed the question why people hold weird beliefs and theories. Some examples are the theory that the moon landings were faked, or that 9/11 was in reality an inside job. Quassim argued that more often not, these types of beliefs stem from epistemic vices. In as far as these vices are stealthy, i.e. not apparent t

In this post, Allan Hazlett , Assistant Professor of Philosophy at the University of New Mexico , presents his book, A Luxury of the Understanding (Oxford University Press, 2013). Allan (in the picture above)  works on the value of accurate representation, deference and disagreement, and political epistemology. Philosophers have for some time acknowledged the possibility of irrational and false beliefs that are nonetheless beneficial to the believer. A familiar case is that of the over-confident athlete: it is easy to imagine that Karen is better off over-estimating her tennis abilities, than she would be were her evaluation of her abilities accurate, given the boost to her confidence that this over-estimation provides. However, it is standard for philosophers to argue that, since Karen’s belief is irrational and false, although it may be all-things-considered best for her, it is nevertheless “epistemically” bad. In A Luxury of the Understanding (cover pictured below), I appea

After having studied relatively rare irrational beliefs, those that are also considered symptoms of psychiatric disorders and 'marks of madness', I have recently become interested in the irrationality of everyday beliefs and in particular in those beliefs and predictions that seem to betray excessive optimism. On 15th January 2015, I was asked to give a  talk  to the public at Modern Art Oxford, a gallery hosting at the time an exhibition called " Love is Enough ", with artwork by William Morris and Andy Warhol. The brief for the talk was to think about the creation of myths, something that interested both artists. I took the opportunity to examine the everyday myths that we all create when we think about our own character traits, talents, skills, and come to believe that we are better than average at everything. When we imagine what our future will be like, we see it as free of failure, drama and illness, and exemplifying a continuous progress, moving from asp

Positive illusions provide a challenge to the once-accepted view that accurate beliefs about oneself and the world are conducive to wellbeing and mental health. Illusions are "beliefs that depart from reality" and they are positive when they involve unrealistic optimism about one's capacities, prospects, or control over the external environment.  We can find three broad types of positive illusions, following Taylor and Brown (1994) : (1) excessively positive self-appraisals; (2) the belief that one has greater control over events than it is actually the case; (3) more rosy views of the future than statistics can warrant. It is important that positive illusions are regarded as  mild distortions of reality and do not involve "denying the obvious": most researchers interested in positive illusions are keen to distinguish positive illusions from cases of self-deception or from defence mechanisms. Taylor and Brown have shown not only that positive illusions are