Graf Estes Katharine, Antovich Dylan M, Verde Erica L
University of California, Davis, USA.
J Child Lang. 2021 May;48(3):634-644. doi: 10.1017/S0305000920000550. Epub 2020 Sep 24.
This research investigates selectivity in word learning for bilingual infants. Previous work demonstrated that bilingual infants show greater openness to non-native language sounds in object labels than monolinguals (Hay et al., 2015; Singh, 2018). It remains unclear whether bilingual openness extends to nonspeech sounds. We presented 14- and 19-month-old bilinguals with object labels consisting of nonspeech tones. Monolinguals recently displayed learning of the same labels at 14 months, but not 19 months (Graf Estes et al., 2018). In contrast, bilinguals failed to learn the labels. We propose that hearing phonological variation across two languages helps bilinguals reject nonspeech word forms.
本研究调查了双语婴儿在词汇学习中的选择性。先前的研究表明，与单语婴儿相比，双语婴儿在物体标签中对非母语语音表现出更大的开放性（Hay等人，2015年；Singh，2018年）。目前尚不清楚双语开放性是否扩展到非语音声音。我们向14个月和19个月大的双语婴儿呈现由非语音音调组成的物体标签。单语婴儿最近在14个月时表现出对相同标签的学习，但在19个月时没有（Graf Estes等人，2018年）。相比之下，双语婴儿未能学习这些标签。我们认为，听到两种语言中的语音变化有助于双语婴儿拒绝非语音单词形式。
