title: Brain lesions and cognitive function in late-life psychosis.
abstract: Twenty-four patients who developed their first psychotic episode after the age of 45 were studied with MRI and comprehensive neuropsychological testing and compared with 72 healthy elderly subjects. The patients demonstrated more clinical abnormalities on MRI, were more likely to have large white-matter lesions or metabolic illness, and did more poorly on many neuropsychological tests, particularly those testing frontal-lobe and memory abilities. We conclude that structural brain injury is commonly associated with the late onset of psychosis. Neuroimaging investigations are a valuable component in the evaluation of this patient group.
authors.affiliation: Department of Neurology, Harbor-UCLA Medical Center, Torrance 90509.
authors.forename: B L
authors.initials: BL
authors.lastname: Miller
authors.forename: I M
authors.initials: IM
authors.lastname: Lesser
authors.forename: K B
authors.initials: KB
authors.lastname: Boone
authors.forename: E
authors.initials: E
authors.lastname: Hill
authors.forename: C M
authors.initials: CM
authors.lastname: Mehringer
authors.forename: K
authors.initials: K
authors.lastname: Wong
mesh_terms: D000368:Aged; D001921:Brain / Q000473:pathology; D001925:Brain Damage, Chronic / Q000175:diagnosis / Q000523:psychology; D003704:Dementia / Q000175:diagnosis* / Q000523:psychology; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D019965:Neurocognitive Disorders / Q000175:diagnosis* / Q000523:psychology; D009483:Neuropsychological Tests