Altvater-Mackensen Nicole, Mani Nivedita, Grossmann Tobias
Research Group Early Social Development, Max Planck Institute for Human Cognitive and Brain Sciences.
Georg-Elias-Müller Institute for Psychology, Georg-August-University Göttingen.
Dev Psychol. 2016 Feb;52(2):191-204. doi: 10.1037/a0039964.
Recent studies suggest that infants' audiovisual speech perception is influenced by articulatory experience (Mugitani et al., 2008; Yeung & Werker, 2013). The current study extends these findings by testing if infants' emerging ability to produce native sounds in babbling impacts their audiovisual speech perception. We tested 44 6-month-olds on their ability to detect mismatches between concurrently presented auditory and visual vowels and related their performance to their productive abilities and later vocabulary size. Results show that infants' ability to detect mismatches between auditory and visually presented vowels differs depending on the vowels involved. Furthermore, infants' sensitivity to mismatches is modulated by their current articulatory knowledge and correlates with their vocabulary size at 12 months of age. This suggests that-aside from infants' ability to match nonnative audiovisual cues (Pons et al., 2009)-their ability to match native auditory and visual cues continues to develop during the first year of life. Our findings point to a potential role of salient vowel cues and productive abilities in the development of audiovisual speech perception, and further indicate a relation between infants' early sensitivity to audiovisual speech cues and their later language development.
近期研究表明，婴儿的视听语音感知受发音经验影响（Mugitani等人，2008年；Yeung和Werker，2013年）。本研究通过测试婴儿在咿呀学语中发出母语声音的新能力是否会影响其视听语音感知，扩展了这些研究结果。我们测试了44名6个月大婴儿检测同时呈现的听觉和视觉元音之间不匹配的能力，并将他们的表现与其发音能力和后期词汇量相关联。结果表明，婴儿检测听觉和视觉呈现元音之间不匹配的能力因所涉及的元音而异。此外，婴儿对不匹配的敏感度受其当前发音知识的调节，并与其12个月大时的词汇量相关。这表明，除了婴儿匹配非母语视听线索的能力（Pons等人，2009年）之外，他们匹配母语听觉和视觉线索的能力在生命的第一年仍在继续发展。我们的研究结果指出了显著元音线索和发音能力在视听语音感知发展中的潜在作用，并进一步表明婴儿早期对视听语音线索的敏感度与其后期语言发展之间的关系。
