Phonological acquisition depends on the timing of speech sounds: Deconvolution EEG modeling across the first five years.
| Autor: | Menn KH; Research Group Language Cycles, Max Planck Institute for Human Cognitive and Brain Sciences, Stephanstr. 1a, 04103 Leipzig, Germany.; Department of Neuropsychology, Max Planck Institute for Human Cognitive and Brain Sciences, Stephanstr. 1a, 04103 Leipzig, Germany.; International Max Planck Research School on Neuroscience of Communication: Function, Structure, and Plasticity, Stephanstr 1a, 04103 Leipzig, Germany., Männel C; Department of Neuropsychology, Max Planck Institute for Human Cognitive and Brain Sciences, Stephanstr. 1a, 04103 Leipzig, Germany.; Department of Audiology and Phoniatrics, Charité - Universitätsmedizin Berlin, Augustenburger Platz 1, 13353 Berlin, Germany., Meyer L; Research Group Language Cycles, Max Planck Institute for Human Cognitive and Brain Sciences, Stephanstr. 1a, 04103 Leipzig, Germany.; Clinic for Phoniatrics and Pedaudiology, University Hospital Münster, Albert-Schweitzer-Campus 1, 48149 Münster, Germany. |
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| Jazyk: | angličtina |
| Zdroj: | Science advances [Sci Adv] 2023 Nov 03; Vol. 9 (44), pp. eadh2560. Date of Electronic Publication: 2023 Nov 01. |
| DOI: | 10.1126/sciadv.adh2560 |
| Abstrakt: | The late development of fast brain activity in infancy restricts initial processing abilities to slow information. Nevertheless, infants acquire the short-lived speech sounds of their native language during their first year of life. Here, we trace the early buildup of the infant phoneme inventory with naturalistic electroencephalogram. We apply the recent method of deconvolution modeling to capture the emergence of the feature-based phoneme representation that is known to govern speech processing in the mature brain. Our cross-sectional analysis uncovers a gradual developmental increase in neural responses to native phonemes. Critically, infants appear to acquire those phoneme features first that extend over longer time intervals-thus meeting infants' slow processing abilities. Shorter-lived phoneme features are added stepwise, with the shortest acquired last. Our study shows that the ontogenetic acceleration of electrophysiology shapes early language acquisition by determining the duration of the acquired units. |
| Databáze: | MEDLINE |
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