Neural processing of amplitude and formant rise time in dyslexia

Varghese Peter; Marina Kalashnikova; Denis Burnham

doi:10.1016/j.dcn.2016.03.006

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Neural processing of amplitude and formant rise time in dyslexia

Journal article

Open access

Peer reviewed

Neural processing of amplitude and formant rise time in dyslexia

Varghese Peter, Marina Kalashnikova and Denis Burnham

Developmental Cognitive Neuroscience, Vol.19, pp.152-163

2016

DOI: https://doi.org/10.1016/j.dcn.2016.03.006

PMCID: PMC6988592

PMID: 27017263

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Abstract

Developmental Psychology and Ageing

Biological Psychology (Neuropsychology, Psychopharmacology, Physiological Psychology)

Linguistic Processes (incl. Speech Production and Comprehension)

Dyslexia

event related potentials

mismatch negativity

rise time

This study aimed to investigate how children with dyslexia weight amplitude rise time (ART) and formant rise time (FRT) cues in phonetic discrimination. Passive mismatch responses (MMR) were recorded for a/ba/-/wa/contrast in a multiple deviant odd-ball paradigm to identify the neural response to cue weighting in 17 children with dyslexia and 17 age-matched control children. The deviant stimuli had either partial or full ART or FRT cues. The results showed that ART did not generate an MMR in either group, whereas both partial and full FRT cues generated MMR in control children while only full FRT cues generated MMR in children with dyslexia. These findings suggest that children, both controls and those with dyslexia, discriminate speech based on FRT cues and not ART cues. However, control children have greater sensitivity to FRT cues in speech compared to children with dyslexia.

Details

Title: Neural processing of amplitude and formant rise time in dyslexia
Authors: Varghese Peter (Author) - Western Sydney University
Marina Kalashnikova (Author) - Western Sydney University
Denis Burnham (Author) - Western Sydney University
Publication details: Developmental Cognitive Neuroscience, Vol.19, pp.152-163
Publisher: Elsevier Ltd
Date published: 2016
DOI: 10.1016/j.dcn.2016.03.006
ISSN: 1878-9307; 1878-9293
PMID: 27017263; PMC6988592
Organisation Unit: School of Social Sciences - Legacy; University of the Sunshine Coast, Queensland; School of Health - Psychology; School of Health and Behavioural Sciences - Legacy
Language: English
Record Identifier: 99534307202621
Output Type: Journal article

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