Negative schizophrenic symptoms and the frontal lobe syndrome: one and the same?
Eur Arch Psychiatry Clin Neurosci
; 261(1): 59-67, 2011 Feb.
Article
en En
| MEDLINE
| ID: mdl-20711784
ABSTRACT
The negative symptoms of schizophrenia have been considered to be a psychiatric form of the frontal lobe syndrome. However, no studies have compared these two disorders at the clinical level. In this study, 12 negative symptom schizophrenic patients and 11 patients with behavioural variant frontotemporal dementia (bv-FTD) were rated for negative symptoms and for occurrence of frontal lobe behaviours in everyday life. They were also rated for speech disorder and were given a series of executive tests. Both patient groups showed positive ratings on negative symptoms and frontal lobe behaviours in daily life; however, the schizophrenic patients had higher negative symptom scores and the bv-FTD patients had higher carer ratings on frontal behaviours in daily life. Both groups were impaired on the executive tests, but the bv-FTD patients showed significantly greater impairment on verbal fluency and a test requiring inhibition of prepotent responses. A minority of the bv-FTD patients unexpectedly showed speech abnormalities typically associated with schizophrenia. The findings indicate that the negative syndrome in schizophrenia and the frontal lobe syndrome resemble each other clinically in important respects. Some of the differences may be attributable to the additional presence of disinhibition in the frontal lobe syndrome.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Esquizofrenia
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Lesiones Encefálicas
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Demencia Frontotemporal
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Lóbulo Frontal
Tipo de estudio:
Diagnostic_studies
Límite:
Adult
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Aged
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Año:
2011
Tipo del documento:
Article