Facilitated lexical ambiguity processing by transcranial direct current stimulation over the left inferior frontal cortex.
J Cogn Neurosci
; 27(1): 26-34, 2015 Jan.
Article
em En
| MEDLINE
| ID: mdl-25208744
ABSTRACT
Previous studies suggest that the left inferior frontal cortex is involved in the resolution of lexical ambiguities for language comprehension. In this study, we hypothesized that processing of lexical ambiguities is improved when the excitability of the left inferior frontal cortex is enhanced. To test the hypothesis, we conducted an experiment with transcranial direct current stimulation (tDCS). We investigated the effect of anodal tDCS over the left inferior frontal cortex on behavioral indexes for semantic judgment on lexically ambiguous and unambiguous words within a context. Supporting the hypothesis, the RT was shorter in the anodal tDCS session than in the sham session for ambiguous words. The results suggest that controlled semantic retrieval and contextual selection were facilitated by anodal tDCS over the left inferior frontal cortex.
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Base de dados:
MEDLINE
Assunto principal:
Semântica
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Estimulação Transcraniana por Corrente Contínua
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Lobo Frontal
Limite:
Adult
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Ano de publicação:
2015
Tipo de documento:
Article