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Article: Stroop interference and facilitation effects in first-episode schizophrenic patients

TitleStroop interference and facilitation effects in first-episode schizophrenic patients
Authors
Issue Date2001
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/schres
Citation
Schizophrenia Research, 2001, v. 48 n. 1, p. 29-44 How to Cite?
AbstractIn the Stroop test, interference occurs in naming the print color of a word when the word is itself the name of another color. Facilitation occurs when the word is the same as the print color. Previous studies on selective attention in schizophrenia using the Stroop interference effects have yielded contradicting results. Constraints included limited sample size and the recruitment of medicated chronic patients. We studied the Stroop interference and facilitation effects in a relatively large sample of first-episode schizophrenic patients (n = 56), a substantial proportion of whom were medication-naïve (n = 30) at the time of initial testing. We have also carried out longitudinal follow-up assessments when patients reached a clinically stable state, as well as 4 months after recovery from the episode. We found that the Stroop interference effect was not increased in first-episode schizophrenic patients, whether medication-naïve or not. This effect did not change over the follow-up period. In addition, we detected an increase in Stroop facilitation effect in medicated schizophrenic patients, but only in the initial assessment soon after they had received medication. After sustained treatment, the increase in facilitation was normalized. These observations supported previous findings of a normal Stroop interference effect amongst schizophrenic patients. The increased facilitation effect for patients in their early phase of treatment (but not later) may represent an acute effect of anti-psychotic medication. Its nature and significance require further investigation. © 2001 Elsevier Science B.V.
Persistent Identifierhttp://hdl.handle.net/10722/171907
ISSN
2015 Impact Factor: 4.453
2015 SCImago Journal Rankings: 2.304
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorChen, EYHen_US
dc.contributor.authorWong, AWSen_US
dc.contributor.authorChen, RYLen_US
dc.contributor.authorAu, JWYen_US
dc.date.accessioned2012-10-30T06:18:21Z-
dc.date.available2012-10-30T06:18:21Z-
dc.date.issued2001en_US
dc.identifier.citationSchizophrenia Research, 2001, v. 48 n. 1, p. 29-44en_US
dc.identifier.issn0920-9964en_US
dc.identifier.urihttp://hdl.handle.net/10722/171907-
dc.description.abstractIn the Stroop test, interference occurs in naming the print color of a word when the word is itself the name of another color. Facilitation occurs when the word is the same as the print color. Previous studies on selective attention in schizophrenia using the Stroop interference effects have yielded contradicting results. Constraints included limited sample size and the recruitment of medicated chronic patients. We studied the Stroop interference and facilitation effects in a relatively large sample of first-episode schizophrenic patients (n = 56), a substantial proportion of whom were medication-naïve (n = 30) at the time of initial testing. We have also carried out longitudinal follow-up assessments when patients reached a clinically stable state, as well as 4 months after recovery from the episode. We found that the Stroop interference effect was not increased in first-episode schizophrenic patients, whether medication-naïve or not. This effect did not change over the follow-up period. In addition, we detected an increase in Stroop facilitation effect in medicated schizophrenic patients, but only in the initial assessment soon after they had received medication. After sustained treatment, the increase in facilitation was normalized. These observations supported previous findings of a normal Stroop interference effect amongst schizophrenic patients. The increased facilitation effect for patients in their early phase of treatment (but not later) may represent an acute effect of anti-psychotic medication. Its nature and significance require further investigation. © 2001 Elsevier Science B.V.en_US
dc.languageengen_US
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/schresen_US
dc.relation.ispartofSchizophrenia Researchen_US
dc.rightsSchizophrenia Research. Copyright © Elsevier BV.-
dc.subject.meshAdulten_US
dc.subject.meshAnalysis Of Varianceen_US
dc.subject.meshAntipsychotic Agents - Pharmacologyen_US
dc.subject.meshAttention - Drug Effectsen_US
dc.subject.meshColor Perceptionen_US
dc.subject.meshFemaleen_US
dc.subject.meshHumansen_US
dc.subject.meshLongitudinal Studiesen_US
dc.subject.meshMaleen_US
dc.subject.meshMiddle Ageden_US
dc.subject.meshReaction Timeen_US
dc.subject.meshReadingen_US
dc.subject.meshSchizophrenia - Drug Therapyen_US
dc.subject.meshSchizophrenic Psychologyen_US
dc.titleStroop interference and facilitation effects in first-episode schizophrenic patientsen_US
dc.typeArticleen_US
dc.identifier.emailChen, EYH:eyhchen@hku.hken_US
dc.identifier.authorityChen, EYH=rp00392en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/S0920-9964(00)00107-9en_US
dc.identifier.pmid11278152-
dc.identifier.scopuseid_2-s2.0-0035280552en_US
dc.identifier.hkuros61657-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0035280552&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume48en_US
dc.identifier.issue1en_US
dc.identifier.spage29en_US
dc.identifier.epage44en_US
dc.identifier.isiWOS:000167962600004-
dc.publisher.placeNetherlandsen_US
dc.identifier.scopusauthoridChen, EYH=7402315729en_US
dc.identifier.scopusauthoridWong, AWS=14625622700en_US
dc.identifier.scopusauthoridChen, RYL=16635066600en_US
dc.identifier.scopusauthoridAu, JWY=7101921208en_US

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