Psychological Medicine · 1998 · 276 citations · 29 references
In contradistinction to previous studies, schizophrenic patients do have profound executive impairments at the beginning of the illness. However, these concern planning and strategy use rather than attentional set shifting, which is generally unimpaired. Previous findings in more chronic patients, of severe attentional set shifting impairment, suggest that executive cognitive deficits are progressive during the course of schizophrenia. The finding of severe mnemonic impairment at first episode suggests that cognitive deficits are not restricted to one cognitive domain.
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Information theory and statistics
Journal of the Franklin Institute · 1959 · 7.2K citations
Planning and spatial working memory following frontal lobe lesions in man
Adrian M. Owen, John J. Downes, Barbara J. Sahakian et al. · Neuropsychologia · 1990 · 1.3K citations
FRONTO-STRIATAL COGNITIVE DEFICITS AT DIFFERENT STAGES OF PARKINSON'S DISEASE
Adrian M. Owen, Martin James, P. Nigel Leigh et al. · Brain · 1992 · 864 citations · Full text