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Titolo:
Psychomotor slowing and planning deficits in schizophrenia
Autore:
Jogems-Kosterman, BJM; Zitman, FG; Van Hoof, JJM; Hulstijn, W;
Indirizzi:
Inst Mental Hlth Care, GGZ Oost Brabant, NL-5240 BA Rosmalen, Netherlands Inst Mental Hlth Care Rosmalen Netherlands NL-5240 BA malen, Netherlands Univ Nijmegen Hosp, Dept Psychiat, NL-6500 HB Nijmegen, Netherlands Univ Nijmegen Hosp Nijmegen Netherlands NL-6500 HB Nijmegen, Netherlands Nijmegen Inst Cognit & Informat, NL-6500 HE Nijmegen, Netherlands NijmegenInst Cognit & Informat Nijmegen Netherlands NL-6500 HE herlands
Titolo Testata:
SCHIZOPHRENIA RESEARCH
fascicolo: 2-3, volume: 48, anno: 2001,
pagine: 317 - 333
SICI:
0920-9964(20010330)48:2-3<317:PSAPDI>2.0.ZU;2-Z
Fonte:
ISI
Lingua:
ENG
Soggetto:
FINE MOTOR RETARDATION; COGNITIVE DYSFUNCTION; HANDWRITING MOVEMENTS; NEGATIVE SYMPTOMS; DEPRESSION; PSYCHOPATHOLOGY; ABNORMALITIES; PERFORMANCE; FLUOXETINE; DISEASE;
Keywords:
digitizer; figure copying; planning; psychomotor slowing; schizophrenia;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Life Sciences
Citazioni:
53
Recensione:
Indirizzi per estratti:
Indirizzo: Jogems-Kosterman, BJM Inst Mental Hlth Care, GGZ Oost Brabant, POB 1, NL-5240 BA Rosmalen, Netherlands Inst Mental Hlth Care POB 1 Rosmalen Netherlands NL-5240 BA
Citazione:
B.J.M. Jogems-Kosterman et al., "Psychomotor slowing and planning deficits in schizophrenia", SCHIZOPHR R, 48(2-3), 2001, pp. 317-333

Abstract

The relative contribution of cognitive and motor processing to psychomotorslowing in schizophrenia was investigated using three tasks: a simple line-copying task and a more complex figure-copying task, both following a reaction paradigm, and a standard psychomotor test, the Digit Symbol Test (DST). Various movement variables of the task performances were derived from recordings made with the aid of a digitizing tablet. The patients with schizophrenia appeared to be about one-third slower in their total performance time on all three tasks when compared with healthy controls, which suggests a general psychomotor slowing in this group. When itemized over the various movement variables, this slowing was found in both initiation time and movement time in the copying tasks and in the DST in the time to match the symbol and the digit, but not in writing the digit. Furthermore, in the figure-copying task it was found that increased figure complexity or decreased familiarity prolonged the initiation time. These latency increases were not significantly larger for the schizophrenia group as a whole, but only for a subgroup of patients with higher scores on negative symptoms. Regarding reinspection time, the effects of familiarity were larger in the schizophrenia group as a whole. These group findings suggest that patients tend to plan their actions less in advance, which, in the case of the more complex or unfamiliar task conditions, is a less sophisticated planning strategy. Given the longer latencies in patients with more severe negative symptoms, it seemsthat these patients have problems with turning a plan into action. The present study provides evidence of psychomotor slowing and planning deficits in schizophrenia. (C) 2001 Elsevier Science B.V. All rights reserved.

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Documento generato il 19/01/20 alle ore 05:59:26