Max Planck Institute for Psycholinguistics, Nijmegen, The Netherlands.
Dev Sci. 2012 Jul;15(4):463-73. doi: 10.1111/j.1467-7687.2012.1144.x. Epub 2012 Mar 29.
Infants' ability to recognize words in continuous speech is vital for building a vocabulary. We here examined the amount and type of exposure needed for 10-month-olds to recognize words. Infants first heard a word, either embedded within an utterance or in isolation, then recognition was assessed by comparing event-related potentials to this word versus a word that they had not heard directly before. Although all 10-month-olds showed recognition responses to words first heard in isolation, not all infants showed such responses to words they had first heard within an utterance. Those that did succeed in the latter, harder, task, however, understood more words and utterances when re-tested at 12 months, and understood more words and produced more words at 24 months, compared with those who had shown no such recognition response at 10 months. The ability to rapidly recognize the words in continuous utterances is clearly linked to future language development.
婴儿在连续言语中识别单词的能力对于词汇量的建立至关重要。在这里，我们研究了 10 个月大的婴儿识别单词所需的数量和类型的暴露。婴儿首先听到一个单词，无论是嵌入在一个句子中还是单独听到，然后通过将事件相关电位与他们之前没有直接听到的单词进行比较来评估识别。虽然所有 10 个月大的婴儿都对单独听到的单词表现出识别反应，但并非所有婴儿对他们在句子中首次听到的单词都有这种反应。然而，那些在后者更难的任务中成功的婴儿，在 12 个月时重新测试时理解更多的单词和句子，在 24 个月时理解更多的单词并说出更多的单词，而那些在 10 个月时没有表现出这种识别反应的婴儿则没有。快速识别连续话语中单词的能力显然与未来的语言发展有关。
