18 January 2009

How delusions arise

Delusions associated with consistent pattern of brain injury
NYU Langone Medical Centre: 6 January 2009
A new study provides a novel theory for how delusions arise and why they persist. NYU Langone Medical Center researcher Orrin Devinsky, M.D., performed an in-depth analysis of patients with certain delusions and brain disorders revealing a consistent pattern of injury to the frontal lobe and right hemisphere of the human brain. The cognitive deficits caused by these injuries to the right hemisphere, leads to the over compensation by the left hemisphere of the brain for the injury, resulting in delusions.

The article, entitled "Delusional misidentifications and duplications: Right brain lesions, left brain delusions," appears in the latest issue of the Journal of Neurology. … > full story

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