Deficits in neural encoding of speech in preterm infants

Preterm children show developmental cognitive and language deficits that can be subtle and sometimes undetectable until later in life. Studies of brain development in children who are born preterm have largely focused on vascular and gross anatomical characteristics rather than pathophysiological pr...

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Main Authors: Nikolay Novitskiy, Peggy H.Y. Chan, Mavis Chan, Chin Man Lai, Tak Yeung Leung, Ting Fan Leung, Marc H. Bornstein, Hugh S. Lam, Patrick C.M. Wong
Format: Article
Language:English
Published: Elsevier 2023-06-01
Series:Developmental Cognitive Neuroscience
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1878929323000646
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author Nikolay Novitskiy
Peggy H.Y. Chan
Mavis Chan
Chin Man Lai
Tak Yeung Leung
Ting Fan Leung
Marc H. Bornstein
Hugh S. Lam
Patrick C.M. Wong
author_facet Nikolay Novitskiy
Peggy H.Y. Chan
Mavis Chan
Chin Man Lai
Tak Yeung Leung
Ting Fan Leung
Marc H. Bornstein
Hugh S. Lam
Patrick C.M. Wong
author_sort Nikolay Novitskiy
collection DOAJ
description Preterm children show developmental cognitive and language deficits that can be subtle and sometimes undetectable until later in life. Studies of brain development in children who are born preterm have largely focused on vascular and gross anatomical characteristics rather than pathophysiological processes that may contribute to these developmental deficits. Neural encoding of speech as reflected in EEG recordings is predictive of future language development and could provide insights into those pathophysiological processes. We recorded EEG from 45 preterm (≤ 34 weeks of gestation) and 45 term (≥ 38 weeks) Chinese-learning infants 0–12 months of (corrected) age during natural sleep. Each child listened to three speech stimuli that differed in lexically meaningful pitch (2 native and 1 non-native speech categories). EEG measures associated with synchronization and gross power of the frequency following response (FFR) were examined. ANCOVAs revealed no main effect of stimulus nativeness but main effects of age, consistent with earlier studies. A main effect of prematurity also emerged, with synchronization measures showing stronger group differences than power. By detailing differences in FFR measures related to synchronization and power, this study brings us closer to identifying the pathophysiological pathway to often subtle language problems experienced by preterm children.
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spelling doaj.art-4f9ee8cfc62c46488a5d69e8c34584c82023-06-17T05:18:00ZengElsevierDevelopmental Cognitive Neuroscience1878-92932023-06-0161101259Deficits in neural encoding of speech in preterm infantsNikolay Novitskiy0Peggy H.Y. Chan1Mavis Chan2Chin Man Lai3Tak Yeung Leung4Ting Fan Leung5Marc H. Bornstein6Hugh S. Lam7Patrick C.M. Wong8Brain and Mind Institute, The Chinese University of Hong Kong, Hong Kong, ChinaBrain and Mind Institute, The Chinese University of Hong Kong, Hong Kong, China; Department of Paediatrics, The Chinese University of Hong Kong, Hong Kong, ChinaBrain and Mind Institute, The Chinese University of Hong Kong, Hong Kong, ChinaBrain and Mind Institute, The Chinese University of Hong Kong, Hong Kong, ChinaDepartment of Obsterics and Gynaecology, The Chinese University of Hong Kong, Hong Kong, ChinaDepartment of Paediatrics, The Chinese University of Hong Kong, Hong Kong, ChinaEunice Kennedy Shriver National Institute of Child Health and Human Development, USA; UNICEF, USA; Institute for Fiscal Studies, UKDepartment of Paediatrics, The Chinese University of Hong Kong, Hong Kong, China; Corresponding author.Brain and Mind Institute, The Chinese University of Hong Kong, Hong Kong, China; Correspondence to: Dept. of Linguistics & Modern Languages, The Chinese University of Hong Kong, Hong Kong, China.Preterm children show developmental cognitive and language deficits that can be subtle and sometimes undetectable until later in life. Studies of brain development in children who are born preterm have largely focused on vascular and gross anatomical characteristics rather than pathophysiological processes that may contribute to these developmental deficits. Neural encoding of speech as reflected in EEG recordings is predictive of future language development and could provide insights into those pathophysiological processes. We recorded EEG from 45 preterm (≤ 34 weeks of gestation) and 45 term (≥ 38 weeks) Chinese-learning infants 0–12 months of (corrected) age during natural sleep. Each child listened to three speech stimuli that differed in lexically meaningful pitch (2 native and 1 non-native speech categories). EEG measures associated with synchronization and gross power of the frequency following response (FFR) were examined. ANCOVAs revealed no main effect of stimulus nativeness but main effects of age, consistent with earlier studies. A main effect of prematurity also emerged, with synchronization measures showing stronger group differences than power. By detailing differences in FFR measures related to synchronization and power, this study brings us closer to identifying the pathophysiological pathway to often subtle language problems experienced by preterm children.http://www.sciencedirect.com/science/article/pii/S1878929323000646Preterm infantsFFRMyelinationSpeechSynaptogenesis
spellingShingle Nikolay Novitskiy
Peggy H.Y. Chan
Mavis Chan
Chin Man Lai
Tak Yeung Leung
Ting Fan Leung
Marc H. Bornstein
Hugh S. Lam
Patrick C.M. Wong
Deficits in neural encoding of speech in preterm infants
Developmental Cognitive Neuroscience
Preterm infants
FFR
Myelination
Speech
Synaptogenesis
title Deficits in neural encoding of speech in preterm infants
title_full Deficits in neural encoding of speech in preterm infants
title_fullStr Deficits in neural encoding of speech in preterm infants
title_full_unstemmed Deficits in neural encoding of speech in preterm infants
title_short Deficits in neural encoding of speech in preterm infants
title_sort deficits in neural encoding of speech in preterm infants
topic Preterm infants
FFR
Myelination
Speech
Synaptogenesis
url http://www.sciencedirect.com/science/article/pii/S1878929323000646
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