Article2001

Electrophysiological evidence for automatic phonetic processing in neonates

Ghislaine Dehaene‐Lambertz · Marcela Peña

233 citations0/0 files storedNeuroreport

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Phonetics and Phonology Research Language Development and Disorders Neuroscience and Music Perception

Abstract

At least two fundamental properties should be present in a network computing a phonetic representation: categorical perception and normalization across different utterances. Normalization processes were studied at birth by recording high density evoked potentials to strings of syllables in sleeping neonates. We compared the response to a change of phoneme when irrelevant speaker variation was present or absent. A mismatch response was recorded at the same latency in both cases, suggesting that relevant phonetic information was extracted from the irrelevant variation. Combined with our previous work showing that the mismatch response is sensitive to categorical perception in infants, this result suggests that a phonetic network like that of adults, is already present in the infant brain. Furthermore, efficient phonetic processing does not require attention.

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References

1998Development of language-specific phoneme representations in the infant brain 1999Brain responses reveal the learning of foreign language phonemes 2000Electrophysiological Correlates of Phonological Processing: A Cross-linguistic Study 1979Speech perception in early infancy: Perceptual constancy for spectrally dissimilar vowel categories 1998A phonological representation in the infant brain 1983Perception of auditory equivalence classes for speech in early infancy

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2012Earlier Speech Exposure Does Not Accelerate Speech Acquisition 2007The Infant's Auditory World: Hearing, Speech, and the Beginnings of Language 2008Hearing Faces: How the Infant Brain Matches the Face It Sees with the Speech It Hears 2019Newborns are sensitive to multiple cues for word segmentation in continuous speech 2015Critical period for first language: the crucial role of language input during the first year of life 2004Electrophysiological evidence for delayed mismatch response in infants at‐risk for specific language impairment 2008Electrophysiological evidence of illusory audiovisual speech percept in human infants

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