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Titolo:
Comparison of the continuous performance test with and without working memory demands in healthy controls and patients with schizophrenia
Autore:
Kurtz, MM; Ragland, JD; Bilker, W; Gur, RC; Gur, RE;
Indirizzi:
Univ Penn, Sch Med, Dept Psychiat, Brain Behav Lab, Philadelphia, PA 19104USA Univ Penn Philadelphia PA USA 19104 Behav Lab, Philadelphia, PA 19104USA
Titolo Testata:
SCHIZOPHRENIA RESEARCH
fascicolo: 2-3, volume: 48, anno: 2001,
pagine: 307 - 316
SICI:
0920-9964(20010330)48:2-3<307:COTCPT>2.0.ZU;2-1
Fonte:
ISI
Lingua:
ENG
Soggetto:
SUSTAINED ATTENTION; NEGATIVE SYMPTOMS; THOUGHT-DISORDER; DEFICIT; VULNERABILITY; ADULTS;
Keywords:
construct validity; continuous performance test; schizophrenia; symptom scales;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Life Sciences
Citazioni:
48
Recensione:
Indirizzi per estratti:
Indirizzo: Kurtz, MM Univ Penn, Sch Med, Dept Psychiat, Brain Behav Lab, 3400 Spruce St,10th Floor Gates Bldg, Philadelphia, PA 19104 USA Univ Penn 3400 Spruce St,10th Floor Gates Bldg Philadelphia PA USA 19104
Citazione:
M.M. Kurtz et al., "Comparison of the continuous performance test with and without working memory demands in healthy controls and patients with schizophrenia", SCHIZOPHR R, 48(2-3), 2001, pp. 307-316

Abstract

The Penn Continuous Performance Test (PCPT), a measure of sustained visualattention developed for use in functional neuroimaging studies, was compared with a standard CPT developed by Gordon Diagnostic Systems (GDS; Vigilance subtest). The PCPT and the GDS CPT were administered with a standard neuropsychological battery to 68 healthy adults to assess reliability and construct validity. The test had adequate internal consistency, and convergent validity was established through significant correlations between measures of efficiency on the PCPT and the GDS CPT. With the exception of a significant correlation between efficiency measures on the GDS CPT and a measure ofauditory sustained attention, neither version of the CPT correlated significantly with other measures in the battery. Factor analysis showed that thePCPT loaded with the GDS CPT, In 39 patients with schizophrenia and 39 matched, healthy controls, equivalent impairment was evident on the two CPT tasks. Neither version correlated significantly with symptom measurements. These results support previous conclusions that sustained visual attention inschizophrenia is a core information processing deficit, not directly related to symptomatology. (C) 2001 Elsevier Science B.V. All rights reserved.

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Documento generato il 26/01/20 alle ore 01:31:27