Developmental Neuropsychology · 2001 · 69 citations · 27 references
Life SciencesLinguisticsNeuroscienceAuditory ElectrophysiologyNeurolinguisticsSensory NeuroscienceAuditory DevelopmentAuditory DiscriminationAuditory NeurophysiologyInfant DevelopmentNeonatal DevelopmentSpeech Sound DiscriminationCentral Auditory Processing ChangesDevelopmental Auditory ElectrophysiologyDevelopmental Auditory NeurophysiologyDevelopmental Auditory PhysiologyDevelopmental Auditory ProcessingNegativityNonsense SpeechSpeech Sound Change
The study examined newborns' ability to detect duration changes in the fricative /s/ within a nonsense word. Newborns produced mismatch‑negative responses to duration changes, with two negative waves peaking at ~150 ms and ~350 ms, and at least one negative deflection in every infant.
Abstract In this study, newborns' ability to discriminate durational changes in the fricative /s/ within a nonsense word was investigated. The results showed that infrequent increments and decrements of a speech sound duration elicit a mismatch negativity kind of response in sleeping human newborns. In the auditory event-related potential to these deviant stimuli two negative waves of this response were revealed. The first negative wave peaked at about 150 msec and the second at about 350 msec after the change onset. At least one negative deflection, which was interpreted as evidence for stimulus change-detection, was observed in every infant.
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Linguistic Experience Alters Phonetic Perception in Infants by 6 Months of Age
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