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Verbal Fluency, Semantics, Context and Symptom Complexes in Schizophrenia

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Title: Verbal Fluency, Semantics, Context and Symptom Complexes in Schizophrenia
Language: English
Authors: Vogel, Adam P., Chenery, Helen J., Dart, Catriona M.
Source: Journal of Psycholinguistic Research. Oct 2009 38(5):459-473.
Availability: Springer. 233 Spring Street, New York, NY 10013. Tel: 800-777-4643; Tel: 212-460-1500; Fax: 212-348-4505; e-mail: service-ny@springer.com; Web site: http://www.springerlink.com
Peer Reviewed: Y
Physical Description: PDF
Page Count: 15
Publication Date: 2009
Document Type: Journal Articles
Reports - Research
Descriptors: Sentences, Phonology, Semantics, Schizophrenia, Verbal Communication, Language Fluency, Adults, Vocabulary, Symptoms (Individual Disorders), Patients, Error Patterns, Control Groups, Correlation, Psychomotor Skills, Measures (Individuals), Psycholinguistics, Error Analysis (Language)
DOI: 10.1007/s10936-009-9100-z
ISSN: 0090-6905
Abstract: Lexical-semantic access and retrieval was examined in 15 adults diagnosed with schizophrenia and matched controls. This study extends the literature through the inclusion of multiple examinations of lexical-semantic production within the same patient group and through correlating performance on these tasks with various positive and negative clinical symptoms. On tasks of verbal fluency, meaning generation, sentence production using contextual information and confrontation naming, participants with schizophrenia made significantly more semantic errors on naming tasks; produced fewer meanings for homophones; produced fewer items on semantic, phonological, cued and switching fluency tasks; and produced more errors on sentence production tasks when compared to healthy controls. Significant correlations were also observed between ratings of psychomotor poverty and measures of semantic production and mental inflexibility. This study has provided additional evidence for deficits in lexical-semantic retrieval which are not due to underlying semantic store degradation, do not involve phonological based retrieval, and at the level of sentence generation appear to vary as a function of the contextual constraints provided.
Abstractor: As Provided
Entry Date: 2009
Accession Number: EJ856664
Database: ERIC
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  Data: Verbal Fluency, Semantics, Context and Symptom Complexes in Schizophrenia
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  Data: <searchLink fieldCode="SO" term="%22Journal+of+Psycholinguistic+Research%22"><i>Journal of Psycholinguistic Research</i></searchLink>. Oct 2009 38(5):459-473.
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  Data: Springer. 233 Spring Street, New York, NY 10013. Tel: 800-777-4643; Tel: 212-460-1500; Fax: 212-348-4505; e-mail: service-ny@springer.com; Web site: http://www.springerlink.com
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  Data: Lexical-semantic access and retrieval was examined in 15 adults diagnosed with schizophrenia and matched controls. This study extends the literature through the inclusion of multiple examinations of lexical-semantic production within the same patient group and through correlating performance on these tasks with various positive and negative clinical symptoms. On tasks of verbal fluency, meaning generation, sentence production using contextual information and confrontation naming, participants with schizophrenia made significantly more semantic errors on naming tasks; produced fewer meanings for homophones; produced fewer items on semantic, phonological, cued and switching fluency tasks; and produced more errors on sentence production tasks when compared to healthy controls. Significant correlations were also observed between ratings of psychomotor poverty and measures of semantic production and mental inflexibility. This study has provided additional evidence for deficits in lexical-semantic retrieval which are not due to underlying semantic store degradation, do not involve phonological based retrieval, and at the level of sentence generation appear to vary as a function of the contextual constraints provided.
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      – SubjectFull: Sentences
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      – TitleFull: Verbal Fluency, Semantics, Context and Symptom Complexes in Schizophrenia
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