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Published Online: 28 March 2017

Delusions and the Right Hemisphere: A Review of the Case for the Right Hemisphere as a Mediator of Reality-Based Belief

Publication: The Journal of Neuropsychiatry and Clinical Neurosciences

Abstract

Delusions are beliefs that remain fixed despite evidence that they are incorrect. Although the precise neural mechanism of delusional belief remains to be elucidated, there is a predominance of right-hemisphere lesions among patients with delusional syndromes accompanied by structural pathology, suggesting that right-hemisphere lesions, or networks with key nodes in the right hemisphere, may be playing a role. The authors discuss the potential theoretical basis and empiric support for a specific right-hemisphere role in delusion production, drawing on its roles in pragmatic communication; perceptual integration; attentional surveillance and anomaly/novelty detection; and belief updating.

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Published In

Go to The Journal of Neuropsychiatry and Clinical Neurosciences
Go to The Journal of Neuropsychiatry and Clinical Neurosciences
The Journal of Neuropsychiatry and Clinical Neurosciences
Pages: 225 - 235
PubMed: 28347214

History

Received: 14 June 2016
Accepted: 16 January 2017
Published online: 28 March 2017
Published in print: Summer 2017
Revision received: 29 October 2017

Keywords

  1. Psychosis
  2. Hemispheric Asymmetries and Lateralization
  3. Organic Mental Disorders
  4. Stroke and Other Cerebral Vascular Disease (Neuropsychiatric Aspects)
  5. Traumatic Brain Injury

Authors

Details

Lindsey Gurin, M.D. [email protected]
From the Departments of Neurology and Psychiatry, New York University Langone Medical Center, New York (LG); and the Departments of Neurology and Rehabilitation Medicine, New York University Langone Medical Center, New York (SB).
Sonja Blum, M.D., Ph.D.
From the Departments of Neurology and Psychiatry, New York University Langone Medical Center, New York (LG); and the Departments of Neurology and Rehabilitation Medicine, New York University Langone Medical Center, New York (SB).

Notes

Send correspondence to Dr. Gurin; e-mail: [email protected]

Competing Interests

The authors report no financial relationships with commercial interests.

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