Goswami, U;
Cumming, R;
Chait, M;
Huss, M;
Mead, N;
Wilson, AM;
Barnes, L;
(2016)
Perception of Filtered Speech by Children with Developmental Dyslexia and Children with Specific Language Impairments.
Frontiers in Psychology
, 7
, Article 791. 10.3389/fpsyg.2016.00791.
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Abstract
Here we use two filtered speech tasks to investigate children’s processing of slow (<4 Hz) versus faster (∼33 Hz) temporal modulations in speech. We compare groups of children with either developmental dyslexia (Experiment 1) or speech and language impairments (SLIs, Experiment 2) to groups of typically-developing (TD) children age-matched to each disorder group. Ten nursery rhymes were filtered so that their modulation frequencies were either low-pass filtered (<4 Hz) or band-pass filtered (22 – 40 Hz). Recognition of the filtered nursery rhymes was tested in a picture recognition multiple choice paradigm. Children with dyslexia aged 10 years showed equivalent recognition overall to TD controls for both the low-pass and band-pass filtered stimuli, but showed significantly impaired acoustic learning during the experiment from low-pass filtered targets. Children with oral SLIs aged 9 years showed significantly poorer recognition of band pass filtered targets compared to their TD controls, and showed comparable acoustic learning effects to TD children during the experiment. The SLI samples were also divided into children with and without phonological difficulties. The children with both SLI and phonological difficulties were impaired in recognizing both kinds of filtered speech. These data are suggestive of impaired temporal sampling of the speech signal at different modulation rates by children with different kinds of developmental language disorder. Both SLI and dyslexic samples showed impaired discrimination of amplitude rise times. Implications of these findings for a temporal sampling framework for understanding developmental language disorders are discussed
| Type: | Article |
|---|---|
| Title: | Perception of Filtered Speech by Children with Developmental Dyslexia and Children with Specific Language Impairments |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.3389/fpsyg.2016.00791 |
| Publisher version: | http://doi.org/10.3389/fpsyg.2016.00791 |
| Language: | English |
| Additional information: | Copyright © 2016 Goswami, Cumming, Chait, Huss, Mead, Wilson, Barnes and Fosker. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
| Keywords: | temporal modulation, speech perception, phonology, dyslexia, SLI |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > The Ear Institute |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1502567 |
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