Perception of Filtered Speech by Children with Developmental Dyslexia and Children with Specific Language Impairment
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 ty...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2016-05-01
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| Series: | Frontiers in Psychology |
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| Online Access: | http://journal.frontiersin.org/Journal/10.3389/fpsyg.2016.00791/full |
| _version_ | 1819053814642114560 |
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| author | Usha eGoswami Ruth eCumming Maria eChait Natasha eMead Angela Marie Wilson Lisa eBarnes Tim eFosker |
| author_facet | Usha eGoswami Ruth eCumming Maria eChait Natasha eMead Angela Marie Wilson Lisa eBarnes Tim eFosker |
| author_sort | Usha eGoswami |
| collection | DOAJ |
| description | 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 speech and language impairments (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 sample were also divided into children with and without phonological difficulties. The children with both SLI and phonological difficulties were impaired in recognising 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. |
| first_indexed | 2024-12-21T12:41:43Z |
| format | Article |
| id | doaj.art-2d4da9fc893d4a568dea05987672ad77 |
| institution | Directory Open Access Journal |
| issn | 1664-1078 |
| language | English |
| last_indexed | 2024-12-21T12:41:43Z |
| publishDate | 2016-05-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Psychology |
| spelling | doaj.art-2d4da9fc893d4a568dea05987672ad772022-12-21T19:03:46ZengFrontiers Media S.A.Frontiers in Psychology1664-10782016-05-01710.3389/fpsyg.2016.00791182413Perception of Filtered Speech by Children with Developmental Dyslexia and Children with Specific Language ImpairmentUsha eGoswami0Ruth eCumming1Maria eChait2Natasha eMead3Angela Marie Wilson4Lisa eBarnes5Tim eFosker6University of CambridgeUniversity of CambridgeUCL Ear InstituteUniversity of CambridgeUniversity of CambridgeUniversity of CambridgeQueens University BelfastHere 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 speech and language impairments (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 sample were also divided into children with and without phonological difficulties. The children with both SLI and phonological difficulties were impaired in recognising 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.http://journal.frontiersin.org/Journal/10.3389/fpsyg.2016.00791/fullDyslexiaSpeech PerceptionphonologySLItemporal modulation |
| spellingShingle | Usha eGoswami Ruth eCumming Maria eChait Natasha eMead Angela Marie Wilson Lisa eBarnes Tim eFosker Perception of Filtered Speech by Children with Developmental Dyslexia and Children with Specific Language Impairment Frontiers in Psychology Dyslexia Speech Perception phonology SLI temporal modulation |
| title | Perception of Filtered Speech by Children with Developmental Dyslexia and Children with Specific Language Impairment |
| title_full | Perception of Filtered Speech by Children with Developmental Dyslexia and Children with Specific Language Impairment |
| title_fullStr | Perception of Filtered Speech by Children with Developmental Dyslexia and Children with Specific Language Impairment |
| title_full_unstemmed | Perception of Filtered Speech by Children with Developmental Dyslexia and Children with Specific Language Impairment |
| title_short | Perception of Filtered Speech by Children with Developmental Dyslexia and Children with Specific Language Impairment |
| title_sort | perception of filtered speech by children with developmental dyslexia and children with specific language impairment |
| topic | Dyslexia Speech Perception phonology SLI temporal modulation |
| url | http://journal.frontiersin.org/Journal/10.3389/fpsyg.2016.00791/full |
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