The organization and reorganization of audiovisual speech perception in the first year of life
The organization and reorganization of audiovisual speech perception in the first year of life
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DOI：
10.1016/j.cogdev.2017.02.004
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发表时间：
2017-04-01
影响因子：
1.8
通讯作者：
Werker, Janet F.
中科院分区：
文献类型：
--
作者：
Danielson, D. Kyle;Bruderer, Alison G.;Werker, Janet F.
6至12个月期间是语言学习的敏感期，在此期间婴儿经历听觉感知协调，最近的研究结果表明这个敏感期可能存在于各种感觉方式中。我们测试了处于三个感知协调阶段（6个月、9个月和11个月）的婴儿，以确定（1）他们是否对陌生语言中听到和看到的语音刺激之间的一致性敏感，以及（2）熟悉一致的视听语音是否可以增强随后的非母语听觉辨别能力。 6 个月和 9 个月大（但不是 11 个月大）的婴儿能够检测到非母语音节的视听一致性。对不一致但不一致的视听语言的熟悉改变了 6 个月大婴儿测试中的听觉歧视，但不会改变 9 或 11 个月大婴儿的听觉歧视。这些结果提出了这样的观点：语音感知从个体发育早期开始就是视听的，并且视听语音感知的敏感期可能比单独的听觉感知的敏感期持续更长一些。 (C) 2017 Elsevier Inc. 保留所有权利。
The period between six and 12 months is a sensitive period for language learning during which infants undergo auditory perceptual attunement, and recent results indicate that this sensitive period may exist across sensory modalities. We tested infants at three stages of perceptual attunement (six, nine, and 11 months) to determine (1) whether they were sensitive to the congruence between heard and seen speech stimuli in an unfamiliar language, and (2) whether familiarization with congruent audiovisual speech could boost subsequent non-native auditory discrimination. Infants at six- and nine-, but not 11- months, detected audiovisual congruence of non-native syllables. Familiarization to incongruent, but not congruent, audiovisual speech changed auditory discrimination at test for six-month-olds but not nine- or 11-month-olds. These results advance the proposal that speech perception is audiovisual from early in ontogeny, and that the sensitive period for audiovisual speech perception may last somewhat longer than that for auditory perception alone. (C) 2017 Elsevier Inc. All rights reserved.