Lexical-semantic processing in the semantic priming paradigm in aphasic patients

Arquivos de Neuro-Psiquiatria

Jerusa Fumagalli De Salles²  Candice Steffen Holderbaum¹  Maria Alice Mattos Pimenta Parente²  Letícia Lessa Mansur¹  Ana Inès Ansaldo¹ 

[1] ,Universidade Federal do Rio Grande do Sul Institute of Psychology Graduate Studies Program in PsychologyPorto Alegre RS ,Brazil

关键词: aphasias;    mental processes;    language;    stroke;    afasias;    processos mentais;    linguagem;    acidente vascular cerebral;   

DOI  :  10.1590/S0004-282X2012000900014

来源: SciELO

【 摘 要 】

There is evidence that the explicit lexical-semantic processing deficits which characterize aphasia may be observed in the absence of implicit semantic impairment. The aim of this article was to critically review the international literature on lexical-semantic processing in aphasia, as tested through the semantic priming paradigm. Specifically, this review focused on aphasia and lexical-semantic processing, the methodological strengths and weaknesses of the semantic paradigms used, and recent evidence from neuroimaging studies on lexical-semantic processing. Furthermore, evidence on dissociations between implicit and explicit lexical-semantic processing reported in the literature will be discussed and interpreted by referring to functional neuroimaging evidence from healthy populations. There is evidence that semantic priming effects can be found both in fluent and in non-fluent aphasias, and that these effects are related to an extensive network which includes the temporal lobe, the pre-frontal cortex, the left frontal gyrus, the left temporal gyrus and the cingulated cortex.

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License