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Published online by Cambridge University Press: 02 January 2018
Much contemporary psychiatry has a physical conceptualisation of mental disorders, but the term ‘organic psychiatry’ has a narrower meaning. Lishman (1987) defined it as the “cognitive, behavioural and emotional consequences of cerebral disorder”, and distinguished it from neuropsychiatry (disorders associated with structural brain disease) and from biological psychiatry (a general approach to psychiatry). The separation of organic psychiatry and neuropsychiatry is not clear-cut, however. Presumably, delirious states lie within organic psychiatry not neuropsychiatry, even though they may result from brain disease, but tic disorders are generally considered under neuropsychiatry, even though there is no identified structural lesion.
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