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Showing posts from November, 2019

Conspiracy Theories

In today's post Quassim Cassam  (Warwick) is presenting his new book, Conspiracy Theories (Polity, 2019). See also his post on the Polity Books blog on why we should not ignore conspiracy theories, and the  interview on the New Books Network on conspiracy theories as a form of propaganda. In my book, I address four questions: What is a conspiracy theory? Why do people believe them? What is the problem with conspiracy theories? How should we respond to them? The take home message of the book is that conspiracy theories are a form of political propaganda. This is, in a technical sense, their function , and also what makes them dangerous. The deeper meaning of conspiracy theories is political, and these theories are as pernicious as the political causes they promote. In practice, these causes have often been extremist causes. Anti-Semitism is part of the DNA of conspiracy theories, and even seemingly apolitical theories are a gateway to more overtly political theories.

Revisiting the Irrationality of Delusions: a reply to Vaughan Bell

Today I want to share some thoughts on last week's interesting post  on de-rationalising delusions. In the  pre-print  of their thought provoking paper, Vaughan Bell has argued, with Nichola Raihani and Sam Wilkinson, for the view that models of delusions need to include "alterations to coalitional cognition" and to depart from the dominant views that characterise delusions primarily as irrational beliefs. Here I am not going to discuss their positive proposal, which sounds plausible, but just comment on how the so-called 'dominant account' the authors object to in the paper groups together heterogeneous views of what makes delusions distinctive and pathological. Some of the cognitive accounts Bell and colleagues have as their polemical target hold that: (1) the irrationality of delusions is distinctive from (more radical than) the irrationality of other beliefs; and (2) the irrationality of delusions is the main source (if not the only source) of their

De-Rationalising Delusions

This is a post by Vaughan Bell and gives a summary of a new pre-printed paper called ‘ De-Rationalising Delusions ’ co-authored with Nichola Raihani and Sam Wilkinson .  Vaughan is an Associate Professor in Clinical Psychology at University College London, and also works in the Psychological Interventions Clinic for outpatients with Psychosis (PICuP), in South London and Maudsley NHS Foundation Trust. Nichola Raihani is a Professor in Evolution and Behaviour at University College London, and Sam Wilkinson is a Lecturer in Philosophy at Exeter University.   Historically, delusions have been understood as pathological beliefs that are characterised by their irrationality. Someone who believes, for example, that a camera has been implanted in their tooth and is taking pictures of their mind, would seem, on face value, to have problems in reasoning rationally about the world. This has motivated researchers to look for problems in domain-general reasoning to explain de

The Evolution of the Sensitive Soul

Today's post is by Eva Jablonka (right) and Simona Ginzburg (left).  Jablonka (Tel-Aviv University) is the coauthor of Evolution in Four Dimensions: Genetic, Epigenetic, Behavioral, and Symbolic Variation in the History of Life and the coeditor of Transformations of Lamarckism: From Subtle Fluids to Molecular Biology, both published by MIT Press.  Ginsburg is a neurobiologist who retired from the Open University of Israel, where she headed the MA Program in Biological Thought. Her recent work focuses on the evolution of early nervous systems and the evolutionary transitions to consciousness in the animal world. In this post they introduce their new book, The Evolution of the Sensitive Soul: Learning and the Origins of Consciousness (MIT Press, 2019). The gap between third-person, scientific, publically shared investigations, such as the neuroscience of echolocation, and first-person subjective experiencing such as echolocation-based subjective perce