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Atypical beta-band effects in children with dyslexia in response to rhythmic audio-visual speech

View ORCID ProfileMahmoud Keshavarzi, Kanad Mandke, Annabel Macfarlane, Lyla Parvez, Fiona Gabrielczyk, Angela Wilson, Usha Goswami
doi: https://doi.org/10.1101/2023.03.29.534542
Mahmoud Keshavarzi
1Centre for Neuroscience in Education, Department of Psychology, University of Cambridge, Cambridge, CB2 3EB, United Kingdom
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  • ORCID record for Mahmoud Keshavarzi
  • For correspondence: mk919@cam.ac.uk mahmoud.keshavarzi.ir@ieee.org
Kanad Mandke
1Centre for Neuroscience in Education, Department of Psychology, University of Cambridge, Cambridge, CB2 3EB, United Kingdom
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Annabel Macfarlane
1Centre for Neuroscience in Education, Department of Psychology, University of Cambridge, Cambridge, CB2 3EB, United Kingdom
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Lyla Parvez
1Centre for Neuroscience in Education, Department of Psychology, University of Cambridge, Cambridge, CB2 3EB, United Kingdom
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Fiona Gabrielczyk
1Centre for Neuroscience in Education, Department of Psychology, University of Cambridge, Cambridge, CB2 3EB, United Kingdom
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Angela Wilson
1Centre for Neuroscience in Education, Department of Psychology, University of Cambridge, Cambridge, CB2 3EB, United Kingdom
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Usha Goswami
1Centre for Neuroscience in Education, Department of Psychology, University of Cambridge, Cambridge, CB2 3EB, United Kingdom
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Abstract

Children with dyslexia are known to show impairments in perceiving speech rhythm, which impact their phonological development. Neural rhythmic speech studies have reported atypical delta phase in children with dyslexia, but beta band effects have not yet been studied. It is known that delta phase modulates the amplitude of the beta band response during rhythmic tasks via delta-beta phase-amplitude coupling (PAC). Accordingly, the atypical delta band effects reported for children with dyslexia may imply related atypical beta band effects. Here we analyse EEG data collected during a rhythmic speech paradigm from 51 children (21 typically-developing; 30 with dyslexia) who attended to a talking head repeating “ba” at 2Hz. Phase entrainment in the beta band, angular velocity in the beta band, power responses in the beta band and delta-beta PAC were assessed for each child and each group. Phase entrainment in the beta band was only significant for children without dyslexia. Children with dyslexia did not exhibit any phase consistency, and beta-band angular velocity was significantly faster compared to control children. Power in the beta band was significantly greater in the children with dyslexia. Delta-beta PAC was significant in both groups. The data are interpreted with respect to temporal sampling theory.

Competing Interest Statement

The authors have declared no competing interest.

Copyright 
The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY 4.0 International license.
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Posted March 30, 2023.
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Atypical beta-band effects in children with dyslexia in response to rhythmic audio-visual speech
Mahmoud Keshavarzi, Kanad Mandke, Annabel Macfarlane, Lyla Parvez, Fiona Gabrielczyk, Angela Wilson, Usha Goswami
bioRxiv 2023.03.29.534542; doi: https://doi.org/10.1101/2023.03.29.534542
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Atypical beta-band effects in children with dyslexia in response to rhythmic audio-visual speech
Mahmoud Keshavarzi, Kanad Mandke, Annabel Macfarlane, Lyla Parvez, Fiona Gabrielczyk, Angela Wilson, Usha Goswami
bioRxiv 2023.03.29.534542; doi: https://doi.org/10.1101/2023.03.29.534542

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