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- Title
Developmental Trajectory of the Frequency-Following Response During the First 6 Months of Life.
- Authors
Ribas-Prats, Teresa; Cordero, Gaël; Lip-Sosa, Diana Lucia; Arenillas-Alcón, Sonia; Costa-Faidella, Jordi; Gómez-Roig, María Dolores; Escera, Carles
- Abstract
Purpose: The aim of the present study is to characterize the maturational changes during the first 6 months of life in the neural encoding of two speech sound features relevant for early language acquisition: the stimulus fundamental frequency (fo), related to stimulus pitch, and the vowel formant composition, particularly F1. The frequency-following response (FFR) was used as a snapshot into the neural encoding of these two stimulus attributes. Method: FFRs to a consonant--vowel stimulus /da/ were retrieved from electroencephalographic recordings in a sample of 80 healthy infants (45 at birth and 35 at the age of 1 month). Thirty-two infants (16 recorded at birth and 16 recorded at 1 month) returned for a second recording at 6 months of age. Results: Stimulus fo and F1 encoding showed improvements from birth to 6 months of age. Most remarkably, a significant improvement in the F1 neural encoding was observed during the first month of life. Conclusion: Our results highlight the rapid and sustained maturation of the basic neural machinery necessary for the phoneme discrimination ability during the first 6 months of age.
- Subjects
EVOKED potentials (Electrophysiology); SPEECH perception; ELECTROENCEPHALOGRAPHY; NEURAL pathways; CHILD development; CROSS-sectional method; HUMAN life cycle; MANN Whitney U Test; LANGUAGE acquisition; T-test (Statistics); DATA analysis software; LONGITUDINAL method
- Publication
Journal of Speech, Language & Hearing Research, 2023, Vol 66, Issue 12, p4785
- ISSN
1092-4388
- Publication type
Article
- DOI
10.1044/2023_JSLHR-23-00104