期刊
BILINGUALISM-LANGUAGE AND COGNITION
卷 24, 期 1, 页码 197-210出版社
CAMBRIDGE UNIV PRESS
DOI: 10.1017/S1366728920000358
关键词
bilingualism; executive functions; neurocognition; Proteus phenomenon
Many studies have suggested bilingualism affects cognitive functions, but with mixed results, the conclusion has been challenged. Factors such as the heterogeneity of the term 'bilingual', sample size effects, task effects, and the dynamics between early publication bias and the Proteus phenomenon have led to the conclusion that further research is needed before definitive claims can be made on the topic.
Numerous studies have argued that bilingualism has effects on cognitive functions. Recently, in light of increasingly mixed empirical results, this claim has been challenged. One might ponder if there is enough evidence to justify a cessation to future research on the topic or, alternatively, how the field could proceed to better understand the phantom-like appearance of bilingual effects. Herein, we attempt to frame this appearance at the crossroads of several factors such as the heterogeneity of the term 'bilingual', sample size effects, task effects, and the complex dynamics between an early publication bias that favours positive results and the subsequent Proteus phenomenon. We conclude that any definitive claim on the topic is premature and that research must continue, albeit in a modified way. To this effect, we offer a path forward for future multi-lab work that should provide clearer answers to whether bilingualism has neurocognitive effects, and if so, under what conditions.
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