An analysis of the perception of stop consonants in bilinguals and monolinguals in different phonetic contexts: A range-based language cueing approach
An analysis of the perception of stop consonants in bilinguals and monolinguals in different phonetic contexts: A range-based language cueing approach
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DOI：
10.3758/s13414-020-02183-z
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发表时间：
2021-01-04
影响因子：
1.7
通讯作者：
Fish, Melanie S.
中科院分区：
文献类型：
--
作者：
Garcia-Sierra, Adrian;Schifano, Elizabeth;Fish, Melanie S.
我们观察到，双语者在不同语言背景下对共同声学特性的感知发生了变化，这支持了双语者（而非单语者）对相同声学特性发展出两种音位表征的观点。这种现象被称为双音位边界。在控制了已知的语音感知混淆效应（即对比效应）和双语者与单语者之间资源分配差异（即左手或右手反应）的情况下，本研究重复了双语者在一系列go/no-go任务中的双音位边界的研究结果。使用基于范围的语言提示方法，我们设计了2个实验。第一个实验测试了代表西班牙语或英语语音类别的声音开始时间（VOT）范围是否可以提示双语者，而不是单语者，使用语言特定的感知惯例。第二个实验测试了西班牙语和英语语音类别混合的VOT范围，以确定将注意力引导到特定的语音类别是否可以消除未注意类别的竞争。实验1的结果表明，双语者可以依靠其母语语音类别的分布模式来激活特定的语言模式。实验2表明，注意可以改变对原生语音区分的权重。然而，这一过程受到母语内部语音组成的限制。
Bilinguals' observed perceptual shift across language contexts for shared acoustic properties between their languages supports the idea that bilinguals, but not monolinguals, develop two phonemic representations for the same acoustic property. This phenomenon is known as the double phonemic boundary. This investigation replicated previous findings of bilinguals' double phonemic boundary across a series of go/no-go tasks while controlling for known confounding effects in speech perception (i.e., contrast effects) and differences in resource allocation between bilinguals and monolinguals (i.e., left-hand or right-hand response). Using a range-base language cueing approach, we designed 2 experiments. The first experiment tested whether a voice onset time (VOT) range representative of either Spanish or English phonetic categories can cue bilinguals, but not monolinguals, to use language-specific perceptual routines. The second experiment tested a VOT range with a mixture of Spanish and English phonetic categories to determine whether directing attention to a specific phonetic category can disambiguate the competition of the nonattended category. The results for Experiment 1 showed that bilinguals can rely on the distributional patterns of their native phonetic categories to activate specific language modes. Experiment 2 showed that attention can change the weight given to a native phonetic distinction. However, this process is restricted by the internal phonetic composition of the native language(s).