Impairments in attentional processes are found in most neuropsychiatric dis
orders, including schizophrenia, depression, Parkinson's disease and Alzhei
mer's disease. These are obvious on clinical examination and also on cognit
ive and neuropsychological tests of attention and provide clues into the ar
eas of brain disrupted in these different disorders. Curr Opin Psychiatry 1
2:339-344. (C) 1999 Lippincott Williams & Wilkins.