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1
Modulation of Theta Phase Synchrony during Syllable Processing as a Function of Interactive Acoustic Experience in Infancy
In: Cereb Cortex (2021)
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2
Early Interactive Acoustic Experience with Non-speech Generalizes to Speech and Confers a Syllabic Processing Advantage at 9 Months
Ortiz-Mantilla, Silvia; Realpe-Bonilla, Teresa; Benasich, April A. - : Oxford University Press, 2019
Abstract: During early development, the infant brain is highly plastic and sensory experiences modulate emerging cortical maps, enhancing processing efficiency as infants set up key linguistic precursors. Early interactive acoustic experience (IAE) with spectrotemporally-modulated non-speech has been shown to facilitate optimal acoustic processing and generalizes to novel non-speech sounds at 7-months-of-age. Here we demonstrate that effects of non-speech IAE endure well beyond the immediate training period and robustly generalize to speech processing. Infants who received non-speech IAE differed at 9-months-of-age from both naïve controls and those with only passive acoustic exposure, demonstrating broad modulation of oscillatory dynamics. For the standard syllable, increased high-gamma (>70 Hz) power within auditory cortices indicates that IAE fosters native speech processing, facilitating establishment of phonemic representations. The higher left beta power seen may reflect increased linking of sensory information and corresponding articulatory patterns, while bilateral decreases in theta power suggest more mature automatized speech processing, as less neuronal resources were allocated to process syllabic information. For the deviant syllable, left-lateralized gamma (<70 Hz) enhancement suggests IAE promotes phonemic-related discrimination abilities. Theta power increases in right auditory cortex, known for favoring slow-rate decoding, implies IAE facilitates the more demanding processing of the sporadic deviant syllable.
Keyword: Original Articles
URL: http://www.ncbi.nlm.nih.gov/pubmed/30722000
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6418390/
https://doi.org/10.1093/cercor/bhz001
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3
Active auditory experience in infancy promotes brain plasticity in Theta and Gamma oscillations
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4
Oscillatory Dynamics Underlying Perceptual Narrowing of Native Phoneme Mapping from 6 to 12 Months of Age
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5
The infant as a prelinguistic model for language learning impairments: Predicting from event-related potentials to behavior
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6
Specific language impairment in families: evidence for co-occurrence with reading impairments
In: Journal of speech, language, and hearing research. - Rockville, Md. : American Speech-Language-Hearing Association 46 (2003) 3, 530-543
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7
Language - Articles and Reports - Familial Aggregation in Specific Language Impairment
In: Journal of speech, language, and hearing research. - Rockville, Md. : American Speech-Language-Hearing Association 44 (2001) 5, 1172
OLC Linguistik
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8
Familial aggregation in specific language impairment
In: Journal of speech, language, and hearing research. - Rockville, Md. : American Speech-Language-Hearing Association 44 (2001) 5, 1172-1182
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