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Inhibitory Control and L2 Proficiency Modulate Bilingual Language Production: Evidence from Spontaneous Monologue and Dialogue Speech

机译:抑制性控制和二语能力调节双语语言的产生:自发独白和对话语音的证据

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Bilingual language production requires that speakers recruit inhibitory control (IC) to optimally balance the activation of more than one linguistic system when they produce speech. Moreover, the amount of IC necessary to maintain an optimal balance is likely to vary across individuals as a function of second language (L2) proficiency and inhibitory capacity, as well as the demands of a particular communicative situation. Here, we investigate how these factors relate to bilingual language production across monologue and dialogue spontaneous speech. In these tasks, 42 English–French and French–English bilinguals produced spontaneous speech in their first language (L1) and their L2, with and without a conversational partner. Participants also completed a separate battery that assessed L2 proficiency and inhibitory capacity. The results showed that L2 vs. L1 production was generally more effortful, as was dialogue vs. monologue speech production although the clarity of what was produced was higher for dialogues vs. monologues. As well, language production effort significantly varied as a function of individual differences in L2 proficiency and inhibitory capacity. Taken together, the overall pattern of findings suggests that both increased L2 proficiency and inhibitory capacity relate to efficient language production during spontaneous monologue and dialogue speech.
机译:双语语言的产生要求说话者在发出语音时招募抑制控制(IC)以最佳地平衡多个语言系统的激活。而且,维持最佳平衡所必需的IC量可能会因第二语言(L2)熟练程度和抑制能力以及特定交际情况的要求而有所不同。在这里,我们调查了这些因素如何与跨独白和对话自发语音的双语语言产生相关。在这些任务中,在有或没有会话伙伴的情况下,有42名英语-法语和法语-英语双语者以其母语(L1)和L2进行了自发性演讲。参与者还完成了一个单独的电池,评估了L2熟练程度和抑制能力。结果表明,L2和L1的产生通常比较费劲,对话和独白的语音产生也比较省力,尽管对话和独白的产生的清晰度更高。同样,语言产生的努力也随着L2水平和抑制能力的个体差异而显着变化。总体而言,发现的总体模式表明,L2熟练度和抑制能力的提高均与自发独白和对话中的有效语言产生有关。

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