Organic brain syndromes.

Awareness of the medical disorders that frequently present with neuropsychiatric signs and symptoms and careful attention to a basic medical evaluation in every "psychiatric" patient will obviate referral of such patients to mental health facilities where their medical problems are less likely to be property diagnosed and treated. These disorders can be organized according to the predominant area of psychopathology (delirium, dementia, organic amnestic, delusional, hallucinatory, affective, and personality syndromes).