Feature-specific transition from positive mismatch response to mismatch negativity in early infancy: Mismatch responses to vowels and initial consonants

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题名:	Feature-specific transition from positive mismatch response to mismatch negativity in early infancy: Mismatch responses to vowels and initial consonants
作者:	李佳穎;Cheng, Ying-Ying;Wu, Hsin-Chi;Tzeng, Yu-Lin;Yang, Ming-Tao;Zhao, Lu-Lu;Lee, Chia-Ying
贡献者:	生醫理工學院認知神經科學研究所
关键词:	Acoustic Stimulation;Adolescent;Adult;Attention - physiology;Auditory Perception - physiology;Brain - physiology;Electroencephalography;ERPs;Evoked Potentials, Auditory - physiology;Female;Humans;Infant;Infant, Newborn;Infants;Language;Male;MMN;P-MMR;Phonological saliency;Speech perception;Young Adult
日期:	2015-05-01
上传时间:	2026-04-23 14:26:30 (UTC+8)
出版者:	Elsevier;Netherlands: Elsevier B.V
摘要:	摘要： This study investigated how phonological saliency, deviance size, and maturation affect mismatch responses (MMRs) in early infancy. MMRs to Mandarin vowels and initial consonants were measured using a multi-deviant oddball paradigm in adults, newborns, and 6-month-olds. The vowel condition consisted of Mandarin syllable da as the standard, du as the large deviant and di as small deviant. As for initial consonant condition, we took syllable ba as standard, ga as large deviant, and ba as small deviant. While adults showed typical mismatch negativities (MMNs), newborns demonstrated broad positive MMRs (P-MMRs) to both initial consonants and vowels. For 6-month-olds, deviance size affected the polarity of MMRs to vowels. The large deviant du/da contrast elicited an adult-like MMN, while the small deviant di/da contrast elicited a P-MMR. Initial consonant changes elicited only P-MMRs, regardless of deviance size. In summary, MMRs to vowels switched from P-MMR at birth to MMN at 6months. However, the polarity transition was not found for MMRs to initial consonants. The developmental trajectories of MMRs to vowels and initial consonants further support the phonological saliency hypothesis. •We examined MMRs to vowels and initial consonants in early infancy.•Newborns revealed P-MMRs to both vowels and initial consonants.•The polarity of MMRs in 6-month-olds was feature specific.•P-MMR switched to MMN for vowels but not for consonants at 6months old.•Development of MMRs supported the phonological saliency hypothesis. 其他題名： Int J Psychophysiol 出版者： Netherlands: Elsevier B.V 出版日期： 2015-05 出處： International journal of psychophysiology, 2015-05, Vol.96 (2), p.84-94 版權： 2015 Elsevier B.V. 版權： Copyright © 2015 Elsevier B.V. All rights reserved. 識別號： ISSN: 0167-8760 識別號： EISSN: 1872-7697 識別號： DOI: 10.1016/j.ijpsycho.2015.03.007 識別號： PMID: 25819712
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