Correlations between working memory capacity and EFL reading comprehension: an investigation with Brazilian university students / Correlações entre capacidade de memória de trabalho e compreensão leitora em Inglês como Língua Estrangeira: uma investigação com estudantes universitários brasileiros

Reading in a foreign language is considered a high cognitive function, believed, thus, to impose demands on working memory resources. Studies have shown significant correlations between working memory capacity and foreign language reading comprehension, but its underlying mechanisms are still open to discussion. This article reports on a study whose objective was to investigate possible correlations between working memory capacity and foreign language reading comprehension considering the knowledge of the first language as a possible source of interference. A recall task was conducted in two conditions, one in which readers performed the task in English and another, in Portuguese. Results showed a weak but statistically significant correlation between working memory capacity and recall scores in the second condition and no correlations between working memory capacity and reading time. Exploratory data analyses suggested that the correlation observed was influenced by foreign language reading proficiency and that the ratio of recall scores to reading time is a better measure of comprehension efficiency.

A leitura em língua estrangeira é considerada uma função cognitiva de alto nível que se acredita, portanto, impor demandas nos recursos da memória de trabalho. Estudos mostram correlações significativas entre capacidade de memória de trabalho e compreensão leitora em língua estrangeira, mas seus mecanismos subjacentes ainda estão abertos a discussões. Esse artigo reporta um estudo cujo objetivo foi investigar possíveis correlações entre capacidade de memória de trabalho e compreensão leitora em língua estrangeira considerando o conhecimento da primeira língua como uma possível fonte de interferência. Uma tarefa de recordação foi conduzida em duas condições, uma em que os leitores realizaram a tarefa em inglês e outra, em português. Os resultados mostraram uma correlação fraca, mas estatisticamente significativa entre capacidade de memória de trabalho e pontuações no teste de recordação na segunda condição e nenhuma correlação entre capacidade de memória de trabalho e tempo de leitura. Análises exploratórias dos dados apontaram que a correlação observada foi influenciada pela proficiência de leitura em língua estrangeira e que a razão entre pontuações do teste de recordação e tempo de leitura é uma medida mais apropriada para a eficiência da compreensão leitora.

Neurofunctional (re)organization underlying narrative discourse processing in aging: evidence from fNIRS.

Relatively few studies have analyzed the mechanisms underlying the cognitive changes that affect language in the elderly, and fewer have done so for narrative discourse. The goal of this study was to explore the neurofunctional changes associated with aging for different components of narrative discourse. Functional near-infrared spectroscopy (fNIRS) and behavioral data on 10 younger adults and 10 healthy elderly participants were collected. Ten younger adults in a non-proficient second language condition were included to explore the possibility that the age-related neurofunctional reorganization partly expresses demanding resource allocation. Results show within- and across-hemispheric differences in the neurofunctional pattern of activation in the older participants with reference to the younger ones, partially shared with the low-proficiency young adults, providing support for the recognized mechanisms underlying neural reserve and compensation. fNIRS was shown to be appropriate for studying the age-related neurofunctional reorganization of complex cognitive abilities.

Inference making while reading narrative and expository texts: an ERP study

Much of the recent research on discourse comprehension has centered on the readers' ability to construct coherent mental representations of texts. In order to form a unified representation of a given text, a reader must be able to join the information presented in the text with his/her background knowledge to construe the meaning that may not be explicitly stated, through the generation of inferences. In this study, the process of inference making by native speakers of English while reading two different types of text was investigated using electroencephalography (EEG). Subjects read narrative and expository paragraphs, and judged the plausibility of the final sentence of each four-sentence long paragraph by reference to the previous information. The analysis of data focused on the N400 component and on accuracy of behavioral responses. N400 amplitudes revealed that exposition was more demanding than narration in terms of semantic processing, whereas the behavioral data showed that subjects were more prone to generate inferences when reading exposition. Overall, this study suggests that these two types of text are processed differently by the brain, as revealed by the changes in the N400 component across the last sentences of the paragraphs.

Inference making while reading narrative and expository texts: an ERP study

Much of the recent research on discourse comprehension has centered on the readers' ability to construct coherent mental representations of texts. In order to form a unified representation of a given text, a reader must be able to join the information presented in the text with his/her background knowledge to construe the meaning that may not be explicitly stated, through the generation of inferences. In this study, the process of inference making by native speakers of English while reading two different types of text was investigated using electroencephalography (EEG). Subjects read narrative and expository paragraphs, and judged the plausibility of the final sentence of each four-sentence long paragraph by reference to the previous information. The analysis of data focused on the N400 component and on accuracy of behavioral responses. N400 amplitudes revealed that exposition was more demanding than narration in terms of semantic processing, whereas the behavioral data showed that subjects were more prone to generate inferences when reading exposition. Overall, this study suggests that these two types of text are processed differently by the brain, as revealed by the changes in the N400 component across the last sentences of the paragraphs.(AU)