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Article: Random number generation deficit in early schizophrenia

TitleRandom number generation deficit in early schizophrenia
Authors
Issue Date2011
PublisherAmmons Scientific Ltd. The Journal's web site is located at http://www.amsciepub.com/loi/pms
Citation
Perceptual And Motor Skills, 2011, v. 112 n. 1, p. 91-103 How to Cite?
AbstractRandom number generation with a written response mode provides a potentially appealing marker for executive processes. Impaired performance on written random number generation tasks has been reported in chronic schizophrenic patients. However, no study has investigated whether such a deficit occurs in early schizophrenia and whether its profile and severity are similar to those in patients with chronic illness. This study investigated the ability to generate random numbers in patients with early schizophrenia (n = 44) and a healthy control group (n = 48). Patients were less able to maintain several production strategies and generated more stereotyped response sequences, whereas their abilities to identify randomness with an even-handed treatment of digits and to monitor the equality of occurrence of single digits appeared to remain intact. These results provide evidence that some aspects of the deficits in random number generation among chronic schizophrenic patients are also present at early psychotic episode, while some other aspects are relatively less affected in the early years. © Perceptual and Motor Skills 2011.
Persistent Identifierhttp://hdl.handle.net/10722/135429
ISSN
2015 Impact Factor: 0.618
2015 SCImago Journal Rankings: 0.299
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorChan, KKSen_HK
dc.contributor.authorHui, CLMen_HK
dc.contributor.authorTang, JYMen_HK
dc.contributor.authorChiu, CPYen_HK
dc.contributor.authorChan, SKWen_HK
dc.contributor.authorLam, MMLen_HK
dc.contributor.authorChen, EYHen_HK
dc.date.accessioned2011-07-27T01:35:01Z-
dc.date.available2011-07-27T01:35:01Z-
dc.date.issued2011en_HK
dc.identifier.citationPerceptual And Motor Skills, 2011, v. 112 n. 1, p. 91-103en_HK
dc.identifier.issn0031-5125en_HK
dc.identifier.urihttp://hdl.handle.net/10722/135429-
dc.description.abstractRandom number generation with a written response mode provides a potentially appealing marker for executive processes. Impaired performance on written random number generation tasks has been reported in chronic schizophrenic patients. However, no study has investigated whether such a deficit occurs in early schizophrenia and whether its profile and severity are similar to those in patients with chronic illness. This study investigated the ability to generate random numbers in patients with early schizophrenia (n = 44) and a healthy control group (n = 48). Patients were less able to maintain several production strategies and generated more stereotyped response sequences, whereas their abilities to identify randomness with an even-handed treatment of digits and to monitor the equality of occurrence of single digits appeared to remain intact. These results provide evidence that some aspects of the deficits in random number generation among chronic schizophrenic patients are also present at early psychotic episode, while some other aspects are relatively less affected in the early years. © Perceptual and Motor Skills 2011.en_HK
dc.languageengen_US
dc.publisherAmmons Scientific Ltd. The Journal's web site is located at http://www.amsciepub.com/loi/pmsen_HK
dc.relation.ispartofPerceptual and Motor Skillsen_HK
dc.rightsPerceptual and Motor Skills. Copyright © Ammons Scientific Ltd.-
dc.subject.meshCognition Disorders - psychology-
dc.subject.meshExecutive Function - physiology-
dc.subject.meshNeuropsychological Tests-
dc.subject.meshSchizophrenic Psychology-
dc.subject.meshSeverity of Illness Index-
dc.titleRandom number generation deficit in early schizophreniaen_HK
dc.typeArticleen_HK
dc.identifier.emailChiu, CPY: chiupyc@hku.hken_HK
dc.identifier.emailLam, MML: maylam11@hku.hken_HK
dc.identifier.emailChen, EYH: eyhchen@hku.hken_HK
dc.identifier.authorityChiu, CPY=rp00291en_HK
dc.identifier.authorityLam, MML=rp00296en_HK
dc.identifier.authorityChen, EYH=rp00392en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.2466/02.15.19.22.PMS.112.1.91-103en_HK
dc.identifier.pmid21466082-
dc.identifier.scopuseid_2-s2.0-79955839426en_HK
dc.identifier.hkuros187588en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-79955839426&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume112en_HK
dc.identifier.issue1en_HK
dc.identifier.spage91en_HK
dc.identifier.epage103en_HK
dc.identifier.isiWOS:000288144600007-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridChan, KKS=36882457400en_HK
dc.identifier.scopusauthoridHui, CLM=35734149500en_HK
dc.identifier.scopusauthoridTang, JYM=35086815700en_HK
dc.identifier.scopusauthoridChiu, CPY=8627115700en_HK
dc.identifier.scopusauthoridChan, SKW=55039018700en_HK
dc.identifier.scopusauthoridLam, MML=13106178700en_HK
dc.identifier.scopusauthoridChen, EYH=7402315729en_HK

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