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1
Acoustic-level and language-specific processing of native and non-native phonological sequence onsets in the low gamma and theta-frequency bands
In: Sci Rep (2022)
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2
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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3
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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4
Minimally-verbal children with autism show deficits in theta and gamma oscillations during processing of semantically-related visual information
Ortiz-Mantilla, Silvia; Cantiani, Chiara; Shafer, Valerie L.. - : Nature Publishing Group UK, 2019
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5
Reduced left-lateralized pattern of event-related EEG oscillations in infants at familial risk for language and learning impairment
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6
Active auditory experience in infancy promotes brain plasticity in Theta and Gamma oscillations
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7
A Modulatory Effect of Brief Passive Exposure to Non-linguistic Sounds on Intrinsic Functional Connectivity: Relevance to Cognitive Performance
Koyama, Maki S; Ortiz-Mantilla, Silvia; Roesler, Cynthia P. - : Oxford University Press, 2017
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8
Oscillatory Dynamics Underlying Perceptual Narrowing of Native Phoneme Mapping from 6 to 12 Months of Age
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9
Enhancement of Gamma Oscillations Indicates Preferential Processing of Native over Foreign Phonemic Contrasts in Infants
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