Semantic strategy training increases memory performance and brain activity in patients with prefrontal cortex lesions

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art_MIOTTO_Semantic_strategy_training_increases_memory_performance_and_brain_2013.PDF (419.19 KB)
Citações na Scopus
32
Tipo de produção
article
Data de publicação
2013
DOI
Scopus
Web of Science
PubMed
Título da Revista
ISSN da Revista
Título do Volume
Editora
ELSEVIER SCIENCE BV
Autores
SAVAGE, Cary R.
EVANS, Jonathan J.
WILSON, Barbara A.
BARROS, Fabio G.
GARRIDO, Griselda
Citação
CLINICAL NEUROLOGY AND NEUROSURGERY, v.115, n.3, p.309-316, 2013
Projetos de Pesquisa
Unidades Organizacionais
Fascículo
Resumo
Objective: Memory deficit is a frequent cognitive disorder following acquired prefrontal cortex lesions. In the present study, we investigated the brain correlates of a short semantic strategy training and memory performance of patients with distinct prefrontal cortex lesions using fMRI and cognitive tests. Methods: Twenty-one adult patients with post-acute prefrontal cortex (PFC) lesions, twelve with left dorsolateral PFC (LPFC) and nine with bilateral orbitofrontal cortex (BOFC) were assessed before and after a short cognitive semantic training using a verbal memory encoding paradigm during scanning and neuropsychological tests outside the scanner. Results: After the semantic strategy training both groups of patients showed significant behavioral improvement in verbal memory recall and use of semantic strategies. In the LPFC group, greater activity in left inferior and medial frontal gyrus, precentral gyrus and insula was found after training. For the BOFC group, a greater activation was found in the left parietal cortex, right cingulated and precuneus after training. Conclusion: The activation of these specific areas in the memory and executive networks following cognitive training was associated to compensatory brain mechanisms and application of the semantic strategy.
Palavras-chave
Prefrontal cortex, Semantic training, Memory, Functional magnetic resonance imaging
URI
https://observatorio.fm.usp.br/handle/OPI/2008
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Coleções
Artigos e Materiais de Revistas Científicas - FM/MNE
Artigos e Materiais de Revistas Científicas - FM/MDR
Artigos e Materiais de Revistas Científicas - HC/ICHC
Artigos e Materiais de Revistas Científicas - HC/InRad
Artigos e Materiais de Revistas Científicas - HC/IPq
Artigos e Materiais de Revistas Científicas - LIM/21
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