“Sleights of mind”: Delusions, defences, and self-deception

Authors: McKay, Ryan; Langdon, Robyn; Coltheart, Max

Source: Cognitive Neuropsychiatry, Volume 10, Number 4, August 2005 , pp. 305-326(22)

Publisher: Psychology Press, part of the Taylor & Francis Group

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Abstract:

Two different modes of theorising about delusions are explored. On the one hand is the motivational approach, which regards delusions as serving a defensive, palliative, even potentially adaptive function. On the other, is the cognitive deficit approach, which conceptualises delusions as explicitly pathological, involving abnormalities in ordinary cognitive processes. The former approach, prominently exemplified by the psychoanalytic tradition, was predominant historically, but has been challenged in recent years by the latter. Some grievances against psychoanalytic theory are briefly discussed, and it is argued that although the reasons for psychoanalysis falling into scientific disrepute are partly justified, the psychodynamic notion that motivation has access to the mechanisms of belief formation is of potentially crucial theoretical utility. A variety of possible syntheses of the two theoretical modes are therefore explored, in the belief that the most comprehensive account of delusions will involve a theoretical unification of both styles of explanation. Along the way, an attempt is made to locate the notions delusion, defence, and self-deception in a shared theoretical space.

Document Type: Research article

DOI: http://dx.doi.org/10.1080/13546800444000074

Affiliations: 1: Macquarie Centre for Cognitive Science (MACCS), Australia

Publication date: 2005-08-01

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