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Electrophysiological evidence of phonetic normalization across coarticulation in infants.

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Title: Electrophysiological evidence of phonetic normalization across coarticulation in infants.
Authors: Mersad, Karima, Dehaene‐Lambertz, Ghislaine
Source: Developmental Science. Sep2016, Vol. 19 Issue 5, p710-722. 13p.
Subjects: Speech perception in infants, Electrophysiology, Articulation (Speech), Electroencephalography, Normalization (Sociology), Phonetics, Syllabication
Abstract: The auditory neural representations of infants can easily be studied with electroencephalography using mismatch experimental designs. We recorded high-density event-related potentials while 3-month-old infants were listening to trials consisting of CV syllables produced with different vowels (/ bX/ or / gX/). The consonant remained the same for the first three syllables, followed (or not) by a change in the fourth position. A consonant change evoked a significant difference around the second auditory peak (400-600 ms) relative to control trials. This mismatch response demonstrates that the infants robustly categorized the consonant despite coarticulation that blurs the phonetic cues, and at an age at which they do not produce these consonants themselves. This response was obtained even when infants had no visual articulatory information to help them to track the consonant repetition. In combination with previous studies establishing categorical perception and normalization across speakers, this result demonstrates that preverbal infants already have abstract phonetic representation integrating over acoustical features in the first months of life. [ABSTRACT FROM AUTHOR]
Copyright of Developmental Science is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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  Data: Electrophysiological evidence of phonetic normalization across coarticulation in infants.
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  Data: <searchLink fieldCode="AR" term="%22Mersad%2C+Karima%22">Mersad, Karima</searchLink><br /><searchLink fieldCode="AR" term="%22Dehaene‐Lambertz%2C+Ghislaine%22">Dehaene‐Lambertz, Ghislaine</searchLink>
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  Data: <searchLink fieldCode="JN" term="%22Developmental+Science%22">Developmental Science</searchLink>. Sep2016, Vol. 19 Issue 5, p710-722. 13p.
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  Data: <searchLink fieldCode="DE" term="%22Speech+perception+in+infants%22">Speech perception in infants</searchLink><br /><searchLink fieldCode="DE" term="%22Electrophysiology%22">Electrophysiology</searchLink><br /><searchLink fieldCode="DE" term="%22Articulation+%28Speech%29%22">Articulation (Speech)</searchLink><br /><searchLink fieldCode="DE" term="%22Electroencephalography%22">Electroencephalography</searchLink><br /><searchLink fieldCode="DE" term="%22Normalization+%28Sociology%29%22">Normalization (Sociology)</searchLink><br /><searchLink fieldCode="DE" term="%22Phonetics%22">Phonetics</searchLink><br /><searchLink fieldCode="DE" term="%22Syllabication%22">Syllabication</searchLink>
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  Data: The auditory neural representations of infants can easily be studied with electroencephalography using mismatch experimental designs. We recorded high-density event-related potentials while 3-month-old infants were listening to trials consisting of CV syllables produced with different vowels (/ bX/ or / gX/). The consonant remained the same for the first three syllables, followed (or not) by a change in the fourth position. A consonant change evoked a significant difference around the second auditory peak (400-600 ms) relative to control trials. This mismatch response demonstrates that the infants robustly categorized the consonant despite coarticulation that blurs the phonetic cues, and at an age at which they do not produce these consonants themselves. This response was obtained even when infants had no visual articulatory information to help them to track the consonant repetition. In combination with previous studies establishing categorical perception and normalization across speakers, this result demonstrates that preverbal infants already have abstract phonetic representation integrating over acoustical features in the first months of life. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Developmental Science is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1111/desc.12325
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      – Code: eng
        Text: English
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        Type: general
      – SubjectFull: Electrophysiology
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      – SubjectFull: Articulation (Speech)
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      – SubjectFull: Electroencephalography
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      – SubjectFull: Phonetics
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      – SubjectFull: Syllabication
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              Text: Sep2016
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