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  1. Richard G. T. Gipps1,
  2. K. W. M. Fulford2

Published Online: 30 JAN 2010

DOI: 10.1002/9780470479216.corpsy0256

Corsini Encyclopedia of Psychology

Corsini Encyclopedia of Psychology

How to Cite

Gipps, R. G. T. and Fulford, K. W. M. 2010. Delusions. Corsini Encyclopedia of Psychology. 1–3.

Author Information

  1. 1

    University of Warwick Medical School, United Kingdom

  2. 2

    University of Warwick Medical School and Fellow of St Cross College, Oxford, United Kingdom

Publication History

  1. Published Online: 30 JAN 2010


There is no widely accepted definition of delusion. Delusions are often described in textbooks as being defined since Karl Jaspers as false, subculturally atypical beliefs, strongly maintained in the face of counterargument. Yet such definitions fail to capture either the rich diversity or key features of delusions.


  • psychosis;
  • paranoia;
  • phenomenology;
  • psychoanalysis;
  • cognitive science