The Ba-Wa Distinction in Infants at Family Risk for Developmental Dyslexia: Contrasting Neural Sensitivity to Amplitude Rise Time and Formant Transition Cues

Antonia Götz; Varghese Peter; Marina Kalashnikova; Denis Burnham; Usha Goswami

doi:10.2139/ssrn.4841670

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The Ba-Wa Distinction in Infants at Family Risk for Developmental Dyslexia: Contrasting Neural Sensitivity to Amplitude Rise Time and Formant Transition Cues

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The Ba-Wa Distinction in Infants at Family Risk for Developmental Dyslexia: Contrasting Neural Sensitivity to Amplitude Rise Time and Formant Transition Cues

Antonia Götz, Varghese Peter, Marina Kalashnikova, Denis Burnham and Usha Goswami

Social Science Research Network (SSRN) , Vol.4 June 2024

Elsevier

2024

DOI: https://doi.org/10.2139/ssrn.4841670

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Abstract

Applied and developmental psychology

Cognitive neuroscience

Biological psychology

Expanding knowledge in psychology

infants

dyslexia

mismatch response

amplitude rise time

Children with developmental dyslexia show poor discrimination of amplitude envelope rise times when discriminating the speech sounds “ba” and “wa”. However, their poor discrimination of amplitude rise time (ART) when making the ba-wa distinction is compensated by enhanced sensitivity to formant transitions, operationalised as frequency rise time (FRT). Here we contrast neural sensitivity to ART versus FRT cues to the ba-wa distinction in 20-month-old infants at family risk (AR group) or not at risk (NAR group) for developmental dyslexia. We predicted that AR infants should show reduced neural sensitivity to ART and enhanced sensitivity to FRT. Neural sensitivity to large versus small acoustic changes in ART and FRT was measured using the mismatch response. AR infants showed greater sensitivity to small acoustic FRT deviants, and NAR infants showed greater sensitivity to small acoustic ART deviants. The results are discussed in terms of the Temporal Sampling theory of developmental dyslexia.

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Title: The Ba-Wa Distinction in Infants at Family Risk for Developmental Dyslexia: Contrasting Neural Sensitivity to Amplitude Rise Time and Formant Transition Cues
Authors: Antonia Götz (Author) - Western Sydney University
Varghese Peter (Author) - University of the Sunshine Coast, Queensland, School of Health - Psychology
Marina Kalashnikova (Author) - Basque Center on Cognition, Brain and Language
Denis Burnham (Author) - Western Sydney University
Usha Goswami (Author) - University of Cambridge
Publication details: Social Science Research Network (SSRN) , Vol.4 June 2024
Publisher: Elsevier
Date published: 2024
DOI: 10.2139/ssrn.4841670
ISSN: 1556-5068
Data Availability: All data reported here are available upon request to Marina Kalashnikova at m.kalashnikova@bcbl.eu
Grants: The seeds of literacy in infancy: empirical specification of the acoustic determinants of language acquisition, DP110105123, Australian Research Council (Australia, Canberra) - ARC
Organisation Unit: Healthy Ageing Research Cluster; School of Health - Psychology
Language: English
Record Identifier: 991032798802621
Output Type: Preprint

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