Measurements of functional connectivity support the hypothesis that the brain is composed of distinct networks with anatomically separated nodes but common functionality. A few studies have suggested that intellectual performance may be associated with greater functional connectivity in the fronto-parietal network and enhanced global efficiency. In this fMRI study, we performed an exploratory analysis of the relationship between the brain's functional connectivity and intelligence scores derived from the Portuguese language version of the Wechsler Adult Intelligence Scale (WAIS-III) in a sample of 29 people, born and raised in Brazil. We examined functional connectivity between 82 regions, including graph theoretic properties of the overall network. Some previous findings were extended to the Portuguese-speaking population, specifically the presence of small-world organization of the brain and relationships of intelligence with connectivity of frontal, pre-central, parietal, occipital, fusiform and supramarginal gyrus, and caudate nucleus. Verbal comprehension was associated with global network efficiency, a new finding.
ResumoAs línguas de sinais são línguas naturais que compartilham as propriedades das línguas orais. Vários estudos demonstram que, durante o processamento das línguas de sinais, ocorre uma ativação cortical em áreas clássicas da linguagem. Este estudo buscou visualizar as áreas corticais ativadas em surdos sinalizadores, por meio de tarefa envolvendo a recepção da linguagem, através da língua de sinais.
RESUMO: As línguas de sinais são línguas naturais que compartilham as propriedades das línguas orais. Este estudo buscou visualizar as áreas corticais ativadas em surdos bilíngues em Língua Brasileira de Sinais e em Língua Portuguesa. As tarefas envolveram a elaboração da linguagem. Foram feitos treze http://dx
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