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Behavioral and quantitative electroencephalography (EEG) techniques were used to evaluate treatment response to stimulant therapy in children with attention disorders. A sample of 130 children with attention disorders were evaluated with Conners and Diagnostic and Statistical Manual of Mental Disorders--III rating scales, and with neurometric quantitative(More)
BACKGROUND Neuroleptic-induced tardive dyskinesia (TD) is a major iatrogenic disorder that is more prevalent among older patients. The objective of this study was to determine the incidence of and risk factors for TD in neuroleptic-treated patients over age 45 years. METHODS We studied 266 middle-aged and elderly outpatients with a median duration of 21(More)
This study identified and characterized a group of schizophrenic patients without neuropsychological (NP) impairment. A comprehensive NP battery was administered to 171 schizophrenic outpatients and 63 normal comparison participants. Each participant's NP status was classified through blind clinical ratings by 2 experienced neuropsychologists; 27% of the(More)
Elderly patients with schizophrenia and dementia patients with agitation are frequently candidates for antipsychotic treatment. Conventional neuroleptics have relatively little effect on negative symptoms and may cause considerable side effects, especially in elderly patients. The authors have found a 29% cumulative annual incidence of tardive dyskinesia(More)
OBJECTIVE This study compared morphometric analyses of brain regions in elderly subjects with early- or late-onset schizophrenia to identify structural abnormalities responsible for schizophrenia. METHOD Quantitative analyses of magnetic resonance images of the brain were performed in 16 patients with DSM-III-R-diagnosed late-onset schizophrenia (i.e.,(More)
OBJECTIVE The goal was to compare clinical and neuropsychological characteristics of patients with late-onset schizophrenia, a poorly studied and controversial entity, with those of patients with early-onset schizophrenia and normal subjects. METHOD The authors evaluated 25 patients who met DSM-III-R criteria as well as their own research criteria for(More)
The authors evaluated 14 middle-aged and elderly patients with delusional disorder (DD) and 253 patients with schizophrenia (SC); all patients met DSM-III-R criteria. Because the DD patients were older and had a later age at onset of illness, a sub-sample of 50 SC patients with illness onset after age 40 was compared with the 14 DD patients on clinical and(More)
Previous studies have reported that a proportion of younger schizophrenic patients have the "deficit syndrome," with persistent "negative" symptoms not secondary to factors other than the disease process (e.g., depression). Yet, there is scant information on the deficit syndrome in older schizophrenic patients. We studied 46 schizophrenic patients over age(More)
Onset of schizophrenia after the age of 40 has been a controversial topic. We reviewed more than 30 publications (mainly from Europe) on this subject. Many of the studies had methodological shortcomings, including problems in precisely dating the onset of schizophrenia. Nonetheless, it appears that a certain proportion of patients present for the first time(More)