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Lateralisation of auditory processing in Down syndrome: A study of T-complex peaks Ta and Tb

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Lateralisation of auditory processing in Down syndrome: A study of T-complex peaks Ta and Tb. / Groen, Margriet Anna; Alku, Paavo; Bishop, Dorothy Vera Margaret.

In: Biological Psychology, Vol. 79, No. 2, 2008, p. 148-157.

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Groen, Margriet Anna ; Alku, Paavo ; Bishop, Dorothy Vera Margaret. / Lateralisation of auditory processing in Down syndrome: A study of T-complex peaks Ta and Tb. In: Biological Psychology. 2008 ; Vol. 79, No. 2. pp. 148-157.

Bibtex

@article{1111c05831b34189892e1e67a9cf0036,
title = "Lateralisation of auditory processing in Down syndrome: A study of T-complex peaks Ta and Tb",
abstract = "It has long been argued that abnormal cerebral lateralisation might underlie the language problems that characterise Down syndrome, but to date only behavioural evidence has been provided. We used the auditory event-related potentials Ta and Tb of the T-complex to investigate lateralised processing of speech (vowels) and non-speech (simple and complex tones) sounds in children with Down syndrome and age-matched typically developing children. We also explored associations with speech and language abilities. Although changes in the Ta and Tb in response to increases in stimulus complexity and {\textquoteleft}speechness{\textquoteright} were similar across group, the Tb peak was delayed in children with Down syndrome across conditions. In addition, marked differences in the patterns of lateralisation of Ta latency and Tb amplitude were observed in children with Down syndrome, in response to both speech and non-speech sounds. No associations were found between Ta and Tb characteristics and speech and language abilities in children with DS.",
keywords = "Down syndrome, Event-related potential, Auditory, T-complex, Speech sounds, Tones, Lateralisation",
author = "Groen, {Margriet Anna} and Paavo Alku and Bishop, {Dorothy Vera Margaret}",
year = "2008",
doi = "10.1016/j.biopsycho.2008.04.003",
language = "English",
volume = "79",
pages = "148--157",
journal = "Biological Psychology",
issn = "0301-0511",
publisher = "Elsevier",
number = "2",

}

RIS

TY - JOUR

T1 - Lateralisation of auditory processing in Down syndrome: A study of T-complex peaks Ta and Tb

AU - Groen, Margriet Anna

AU - Alku, Paavo

AU - Bishop, Dorothy Vera Margaret

PY - 2008

Y1 - 2008

N2 - It has long been argued that abnormal cerebral lateralisation might underlie the language problems that characterise Down syndrome, but to date only behavioural evidence has been provided. We used the auditory event-related potentials Ta and Tb of the T-complex to investigate lateralised processing of speech (vowels) and non-speech (simple and complex tones) sounds in children with Down syndrome and age-matched typically developing children. We also explored associations with speech and language abilities. Although changes in the Ta and Tb in response to increases in stimulus complexity and ‘speechness’ were similar across group, the Tb peak was delayed in children with Down syndrome across conditions. In addition, marked differences in the patterns of lateralisation of Ta latency and Tb amplitude were observed in children with Down syndrome, in response to both speech and non-speech sounds. No associations were found between Ta and Tb characteristics and speech and language abilities in children with DS.

AB - It has long been argued that abnormal cerebral lateralisation might underlie the language problems that characterise Down syndrome, but to date only behavioural evidence has been provided. We used the auditory event-related potentials Ta and Tb of the T-complex to investigate lateralised processing of speech (vowels) and non-speech (simple and complex tones) sounds in children with Down syndrome and age-matched typically developing children. We also explored associations with speech and language abilities. Although changes in the Ta and Tb in response to increases in stimulus complexity and ‘speechness’ were similar across group, the Tb peak was delayed in children with Down syndrome across conditions. In addition, marked differences in the patterns of lateralisation of Ta latency and Tb amplitude were observed in children with Down syndrome, in response to both speech and non-speech sounds. No associations were found between Ta and Tb characteristics and speech and language abilities in children with DS.

KW - Down syndrome

KW - Event-related potential

KW - Auditory

KW - T-complex

KW - Speech sounds

KW - Tones

KW - Lateralisation

U2 - 10.1016/j.biopsycho.2008.04.003

DO - 10.1016/j.biopsycho.2008.04.003

M3 - Journal article

VL - 79

SP - 148

EP - 157

JO - Biological Psychology

JF - Biological Psychology

SN - 0301-0511

IS - 2

ER -