Royal Institute of Philosophy Stapledon Colloquium 2017-18 - Professor Lisa Bortolotti: "Delusions and three myths of irrational belief"

3:00pm - 5:00pm / Monday 29th January 2018
Type: Seminar / Category: Department
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Professor Lisa Bortolotti, MA (London), BPhil (Oxon), PhD (ANU)
University of Birmingham

"Delusions and three myths of irrational belief

How has the focus on clinical delusions influenced the recent philosophical literature? I argue that in order to account for the nature of delusions, philosophers have revisited several issues that are central to their study of the mind. In the process, a few myths have been dispelled. First, a belief does not need to be rational to be understood and contribute to the process of explaining and predicting a person's behaviour. Second, a belief does not need to be rational to have a positive impact to a person's well being, success, or even knowledge. Third, irrational beliefs are not an exception in a largely rational background of rational belief. On the contrary, people have many beliefs that violate norms of rationality, and clinically significant delusions have a place on that spectrum. Finally, I discuss how the importance of detail in the analysis of delusions has forced philosophers to leave their armchairs and collaborate with cognitive scientists and clinicians to get a more realistic picture of what irrationality is like 'in the wild'.

Now the time has come to pass on this acquired wisdom, as everyone can benefit from the lessons learnt. Each dispelled myth can contribute to reducing the stigma associated with mental health issues in general, and psychotic symptoms in particular.