Submitted:
08 December 2017
Posted:
11 December 2017
Read the latest preprint version here
Abstract
Psychiatry needs operational definitions to appreciate differences seen in idiosyncratic, psychotic thinking, and shared subcultural beliefs or ideologies. Carl Wernicke first described overvalued idea in 1906. The concept has been applied to describe it as a motive in mass shootings and terrorism. We review the concept of overvalued idea and extreme overvalued belief as a basis for making the distinction between delusions and non-delusions.
Keywords:
psychosis
; delusion
; over valued idea
; terrorism
; mass shootings
; violence
; forensic psychiatry
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