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Titolo:
Reaction time measures of sustained attention differentiate bipolar disorder from schizophrenia
Autore:
Fleck, DE; Sax, KW; Strakowski, SM;
Indirizzi:
Univ Cincinnati, Coll Med, Dept Psychiat, Bipolar & Psychot Disorders Res Program, Cincinnati, OH 45267 USA Univ Cincinnati Cincinnati OH USA 45267 Program, Cincinnati, OH 45267 USA
Titolo Testata:
SCHIZOPHRENIA RESEARCH
fascicolo: 3, volume: 52, anno: 2001,
pagine: 251 - 259
SICI:
0920-9964(200112)52:3<251:RTMOSA>2.0.ZU;2-W
Fonte:
ISI
Lingua:
ENG
Soggetto:
SENSITIVITY; MANIA;
Keywords:
schizophrenia; bipolar disorder; sustained attention; continuous performance task; reaction time;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Life Sciences
Citazioni:
27
Recensione:
Indirizzi per estratti:
Indirizzo: Fleck, DE Univ Cincinnati, Coll Med, Dept Psychiat, Bipolar & Psychot Disorders Res Program, Cincinnati, OH 45267 USA Univ Cincinnati Cincinnati OH USA 45267 incinnati, OH 45267 USA
Citazione:
D.E. Fleck et al., "Reaction time measures of sustained attention differentiate bipolar disorder from schizophrenia", SCHIZOPHR R, 52(3), 2001, pp. 251-259

Abstract

Although continuous performance tasks (CPTs) are becoming more common in psychiatric research, it remains unclear which performance measures best differentiate psychiatric patient groups and along which psychological dimensions. To address this the authors examined sustained attention decrements inpatients with bipolar disorder and schizophrenia using CPT measures of perceptual sensitivity, response bias, and psychomotor processing speed. Patients with bipolar disorder with psychotic features (N = 20), schizophrenia (N = 20), and healthy controls (N = 20) were evaluated using structured clinical inter-views. These patients were rated with the Scale for the Assessment of Positive Symptoms and the Young Mania Rating Scale before completing a degraded-stimulus version of the CPT. Psychomotor processing speed was the only measure that reliably differentiated the groups across the entire vigilance period and was the strongest predictor of group membership. These findings suggest that reaction time measures may be sensitive to differencesin the sustained attention abilities of patients with bipolar disorder andschizophrenia. By incorporating reaction time measures into CPT assessments, discriminant ability may be enhanced. (C) 2001 Elsevier Science B.V. Allrights reserved.

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Documento generato il 19/01/20 alle ore 10:07:23