Acceso usuarios
Yves Joanette, Ana Inés Ansaldo, Maria Alice Parente, Rochele Paz Fonseca, Christian Haag Kristensen, Lilian Cristine Scherer
Functional Near-Infrared Spectroscopy (fNIRS) has emerged as a valuable tool to investigate human cognition. One of the most relevant cognitive aspects to be further explored is the role of executive functions (EF) in cognitive tasks’ performance. The aim of this article is to review empirical studies on EF processing conducted by means of fNIRS. This systematic review has shown, among other findings, that the majority of the studies has focused (a) on the neural correlates of cognitive processing, (b) on the EF components of verbal fluency and Stroop tasks, (c) mainly on healthy young adults populations, and (d) on clinical samples, represented most frequently by schizophrenic patients. The reviewed technique can be considered valid for examining neurobiological correlates of executive functions.
Keywords: Executive functions; neuroimaging; fNIRS; systematic review.
A Espectroscopia de Infravermelho Próximo Funcional (fNIRS) tem se mostrado uma ferramenta importante na investigação da cognição humana. Dentre os processos psicológicos que necessitam ser detalhadamente investigados destacam-se as funções executivas (FE). O presente artigo buscou revisar estudos empíricos das FE realizados com fNIRS. Esta revisão sistemática mostrou, dentre outros achados, que a maioria das pesquisas focalizou: (a) os correlatos neurais do processamento cognitivo, (b) os componentes executivos de tarefas de fluência verbal e Stroop, (c) amostras com predominância de participantes adultos jovens saudáveis, e (d) populações clínicas freqüentemente representadas por adultos esquizofrênicos. A técnica revisada pode ser considerada válida para examinar correlatos neurobiológicos das FE.
Palavras-chave: funções executivas; neuroimagem; fNIRS; revisão sistemática.
