Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Factor versus cluster models of schizotypal traits. II: relation to neuropsychological impairment
Autore:
Suhr, JA; Spitznagel, MB;
Indirizzi:
Ohio Univ, Dept Psychol, Athens, OH 45701 USA Ohio Univ Athens OH USA 45701 io Univ, Dept Psychol, Athens, OH 45701 USA
Titolo Testata:
SCHIZOPHRENIA RESEARCH
fascicolo: 3, volume: 52, anno: 2001,
pagine: 241 - 250
SICI:
0920-9964(200112)52:3<241:FVCMOS>2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Soggetto:
CEREBRAL BLOOD-FLOW; CARD SORTING TEST; SCHIZOPHRENIC-PATIENTS; NEGATIVE SYMPTOMS; PERSONALITY-DISORDER; NONPSYCHOTIC RELATIVES; COGNITIVE INHIBITION; SUSTAINED ATTENTION; ANALYTIC APPROACH; PERFORMANCE;
Keywords:
schizotypy; neuropsychology; symptom heterogeneity;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Life Sciences
Citazioni:
55
Recensione:
Indirizzi per estratti:
Indirizzo: Suhr, JA Ohio Univ, Dept Psychol, 200 Porter Hall, Athens, OH 45701 USA Ohio Univ 200 Porter Hall Athens OH USA 45701 thens, OH 45701 USA
Citazione:
J.A. Suhr e M.B. Spitznagel, "Factor versus cluster models of schizotypal traits. II: relation to neuropsychological impairment", SCHIZOPHR R, 52(3), 2001, pp. 241-250

Abstract

Heterogeneity in cognitive performance in schizophrenia and schizotypy maybe accounted for, by differences in predominant symptom presentation. However, studies have not demonstrated consistent relations between specific cognitive impairments and specific trait dimensions in either population. Studies of group differences, particularly those using groups defined by cluster analyses are rare, but suggest that the negative trait dimension is moreassociated with executive function deficits, positive trait dimension withmemory and attentional difficulties, and the disorganized trait dimension with attention problems. The present study examined the relation of schizotypal trait dimensions and executive function deficits in schizotypal individuals using two methods. Correlations between schizotypal factor scores andcognitive measures demonstrated that high negative symptoms were associated with poor performance on the WCST, while high scores on other trait dimensions were related to a better WCST performance. High scores in all trait dimensions were related to the naive rater's observations of unusual social behavior. A cluster analysis revealed three groups of schizotypals (predominantly negative presentation, predominantly positive symptom presentation, and high on all dimensions). The cluster with predominantly negative symptoms performed worse, than all other schizotypal groups and unselected controls, on the WCST and a higher percentage of them were rated as clinically impaired on the neuropsychological battery. However, schizotypals who were high on all trait dimensions were rated as having the most unusual social behavior by the naive raters. Overall, results support the hypothesis of a relation between executive function deficits and negative symptoms in schizotypal individuals. (C) 2001 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 20/11/19 alle ore 03:41:45