Disparate bilingual experiences modulate task-switching advantages: A diffusion-model analysis of the effects of interactional context on switch costs

被引:146
作者
Hartanto, Andree [1 ]
Yang, Hwajin [1 ]
机构
[1] Singapore Management Univ, 90 Stamford Rd,Level 4, Singapore 178903, Singapore
关键词
Bilingualism; Interactional context; Task switching; Switch cost; Mixing cost; Diffusion model; Adaptive control hypothesis; VOLUNTARY LANGUAGE; COGNITIVE CONTROL; ENGLISH;
D O I
10.1016/j.cognition.2016.01.016
中图分类号
B84 [心理学];
学科分类号
04 ; 0402 ;
摘要
Drawing on the adaptive control hypothesis (Green & Abutalebi, 2013), we investigated whether bilinguals' disparate interactional contexts modulate task-switching performance. Fifty-eight bilinguals within the single-language context (SLC) and 75 bilinguals within the dual-language context (DLC) were compared in a typical task-switching paradigm. Given that DLC bilinguals switch between languages within the same context, while SLC bilinguals speak only one language in one environment and therefore rarely switch languages, we hypothesized that the two groups' stark difference in their interactional contexts of conversational exchanges would lead to differences in switch costs. As predicted, DLC bilinguals showed smaller switch costs than SLC bilinguals. Our diffusion-model analyses suggest that DLC bilinguals' benefits in switch costs are more likely driven by task-set reconfiguration than by proactive interference. Our findings underscore the modulating role of the interactional context of conversational exchanges in task switching. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码:10 / 19
页数:10
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