Is semantic verbal fluency impairment explained by executive function deficits in schizophrenia?

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dc.contributor.author Berberian, Arthur de Almeida [UNIFESP]
dc.contributor.author Moraes, Giovanna V.
dc.contributor.author Gadelha, Ary [UNIFESP]
dc.contributor.author Brietzke, Elisa [UNIFESP]
dc.contributor.author Fonseca, Ana O. [UNIFESP]
dc.contributor.author Scarpato, Bruno Sini [UNIFESP]
dc.contributor.author Vicente, Marcella de Oliveira [UNIFESP]
dc.contributor.author Seabra, Alessandra G.
dc.contributor.author Bressan, Rodrigo Affonseca [UNIFESP]
dc.contributor.author Lacerda, Acioly Luiz Tavares de [UNIFESP]
dc.date.accessioned 2020-07-22T13:23:12Z
dc.date.available 2020-07-22T13:23:12Z
dc.date.issued 2016
dc.identifier http://dx.doi.org/10.1590/1516-4446-2015-1663
dc.identifier.citation Revista Brasileira De Psiquiatria. Sao Paulo, v. 38, n. 2, p. 121-126, 2016.
dc.identifier.issn 1516-4446
dc.identifier.uri https://repositorio.unifesp.br/handle/11600/56088
dc.description.abstract Objective: To investigate if verbal fluency impairment in schizophrenia reflects executive function deficits or results from degraded semantic store or inefficient search and retrieval strategies. Method: Two groups were compared: 141 individuals with schizophrenia and 119 healthy age and education-matched controls. Both groups performed semantic and phonetic verbal fluency tasks. Performance was evaluated using three scores, based on 1) number of words generated en
dc.description.abstract 2) number of clustered/ related words en
dc.description.abstract and 3) switching score. A fourth performance score based on the number of clusters was also measured. Results: Individuals with schizophrenia produced fewer words than controls. After controlling for the total number of words produced, a difference was observed between the groups in the number of cluster-related words generated in the semantic task. In both groups, the number of words generated in the semantic task was higher than that generated in the phonemic task, although a significant group vs. fluency type interaction showed that subjects with schizophrenia had disproportionate semantic fluency impairment. Working memory was positively associated with increased production of words within clusters and inversely correlated with switching. Conclusion: Semantic fluency impairment may be attributed to an inability (resulting from reduced cognitive control) to distinguish target signal from competing noise and to maintain cues for production of memory probes. en
dc.description.sponsorship Fundacao de Amparo e Pesquisa do Estado de Sao Paulo (FAPESP)
dc.format.extent 121-126
dc.language.iso eng
dc.publisher Assoc Brasileira Psiquiatria
dc.relation.ispartof Revista Brasileira De Psiquiatria
dc.rights Acesso aberto
dc.subject Psychosis en
dc.subject schizophrenia en
dc.subject cognitive neuroscience en
dc.subject chronic psychiatric illness en
dc.subject language en
dc.title Is semantic verbal fluency impairment explained by executive function deficits in schizophrenia? en
dc.type Artigo
dc.description.affiliation Univ Fed Sao Paulo, Dept Psiquiatria, Programa Esquizofrenia PROESQ, Sao Paulo, SP, Brazil
dc.description.affiliation Univ Fed Sao Paulo, Dept Psiquiatria, LINC, Sao Paulo, SP, Brazil
dc.description.affiliation Ctr Univ FIEO UNIFIEO, Dept Psicol Educ, Ave Franz Voegeli 300,Bloco Prata,Sala 10, BR-06020190 Osasco, SP, Brazil
dc.description.affiliation Brown Univ, Dept Cognit & Linguist Sci, Providence, RI 02912 USA
dc.description.affiliation Univ Mackenzie, Programa Posgrad Disturbios Desenvolvimento, Sao Paulo, SP, Brazil
dc.description.affiliationUnifesp Univ Fed Sao Paulo, Dept Psiquiatria, Programa Esquizofrenia PROESQ, Sao Paulo, SP, Brazil
dc.description.affiliationUnifesp Univ Fed Sao Paulo, Dept Psiquiatria, LINC, Sao Paulo, SP, Brazil
dc.description.sponsorshipID FAPESP: 2011/50740-5
dc.description.sponsorshipID FAPESP: 2007/58630-9
dc.identifier.file S1516-44462016000200121.pdf
dc.identifier.scielo S1516-44462016000200121
dc.identifier.doi 10.1590/1516-4446-2015-1663
dc.description.source Web of Science
dc.identifier.wos WOS:000378234800005
dc.coverage Sao Paulo
dc.citation.volume 38
dc.citation.issue 2



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