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Predictors of phonological change in deaf and hard of hearing children who use cochlear implants or hearing aids
Linköping University, The Swedish Institute for Disability Research. Linköping University, Department of Behavioural Sciences and Learning, Disability Research. Linköping University, Faculty of Arts and Sciences. (Linnaeus Centre HEAD)
Linköping University, The Swedish Institute for Disability Research. Linköping University, Department of Behavioural Sciences and Learning, Disability Research. Linköping University, Faculty of Arts and Sciences. Östergötlands Läns Landsting, Anaesthetics, Operations and Specialty Surgery Center, Department of Otorhinolaryngology in Linköping. (Linnaeus Centre HEAD)
Humanities laboratory, Cognition, Communication & Learning, Lund University. (Linnaeus Centre)
Linköping University, Department of Behavioural Sciences and Learning, Disability Research. Linköping University, Faculty of Arts and Sciences. Linköping University, The Swedish Institute for Disability Research.
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2014 (English)Manuscript (preprint) (Other academic)
Abstract [en]

Objective: The purpose of the present study was to examine cognitive abilities (i.e., working memory (WM), lexical access, phonological processing skills (PhPS), and letter knowledge) in deaf and hard of hearing (D/HH) children in relation to a reference group with normal hearing (NH) children pre intervention with a computer-assisted program that focused on phonological coding. A more specific purpose was to explore how cognitive abilities were associated to PhPS pre intervention and to phonological change post intervention in D/HH children in general, and specifically in D/HH children with weak initial PhPS.

Methods: Participants were thirty-two children using cochlear implants or hearing aids, or both in combination, and sixteen children with NH 5, 6 and 7 years of age. Children practiced with phonological coding 10 min per day for 4 weeks with support by their parents. Cognitive abilities were examined pre and post intervention.

Results: NH and D/HH children displayed a similar performance level on the majority of cognitive tasks, but the D/HH children demonstrated weaker lexical access and PhPS. A significant correlation between complex WM and PhPS pre intervention was only observed in D/HH children. Weak initial performance on one phonological processing task capturing both lower level and higher level auditory processing was the main significant predictor of phonological change in all D/HH children. In D/HH children with weak initial PhPS letter naming was associated with phonological change.

Conclusions: The associations between complex working memory and PhPS in D/HH children and the lack of such associations in children with NH may indicate that phonological processing skills require more cognitive resources in the D/HH children. Letter knowledge can act as a driving force for phonological change following intervention in D/HH children with weak PhPS.

Place, publisher, year, edition, pages
2014.
Keyword [en]
Deaf and hard of hearing, children, cochlear implants, hearing aids, phonological change, cognitive abilities
National Category
Other Health Sciences
Identifiers
URN: urn:nbn:se:liu:diva-108899OAI: oai:DiVA.org:liu-108899DiVA: diva2:733794
Available from: 2014-07-11 Created: 2014-07-11 Last updated: 2014-07-11Bibliographically approved
In thesis
1. Rethinking Sound: Computer-assisted reading intervention with a phonics approach for deaf and hard of hearing children using cochlear implants or hearing aids
Open this publication in new window or tab >>Rethinking Sound: Computer-assisted reading intervention with a phonics approach for deaf and hard of hearing children using cochlear implants or hearing aids
2014 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

In the present thesis, computer-assisted reading intervention with a phonics approach was examined in deaf and hard of hearing children (DHH) aged 5, 6 or 7 years old using cochlear implants, hearing aids or a combination of both. Children with normal hearing (NH), matched for non-verbal intelligence and age, served as a reference group. Deaf and hard of hearing children constitute a heterogenetic population regarding cognitive and academic achievement. Many of them do not reach age appropriate levels in language and reading ability during their school years, with negative consequences for later training facilities and job opportunities. Finding relevant intervention methods to promote early language learning and literacy development that are easy to implement is therefore of great importance. In this thesis three aspects of cognitive ability (phonological processing skills, lexical access and working memory capacity), and reading ability was examined at three points in time; baseline 1, pre intervention and post intervention. Additionally, computer-assisted training delivered by  means of the Internet in the children’s homes was explored in order to determine whether it would be a useful and efficient method for the DHH population. Overall, the results from the present thesis support the notion that offering a computer-assisted intervention program delivered at home, is an alternative way to support not only NH children with reading difficulties but also to support DHH children’s phonological development and decoding proficiency.

Abstract [sv]

I denna avhandling undersöktes fonologisk lästräning vid datorn för döva och hörselskadade barn 5, 6 och 7 år gamla som använde cochleaimplantat, hörapparat eller en kombination av båda. Barn med normal hörsel som var matchade avseende icke-verbal intelligens och ålder utgjorde jämförelsegrupp. Döva och hörselskadade barn utgör en heterogen grupp avseende kognitiv förmåga och skolframgång. Många av dem når inte kraven för åldern avseende språk och läsförmåga under skoltiden vilket får negativa konsekvenser för senare utbildning och arbete. Att hitta relevanta interventionsmetoder för att främja tidig språkinlärning och läsutveckling som är lätta att genomföra, är därför av stor betydelse. I avhandlingen undersöktes tre aspekter av kognitiv förmåga (fonologisk bearbetningsförmåga, lexikal åtkomst och arbetsminneskapacitet) och läsförmåga vid tre tidpunkter; förtest 1, före intervention och efter intervention. Dessutom undersöktes om datorbaserad intervention som genomförs via Internet i hemmet, skulle vara en användbar och effektiv metod för döva och hörselskadade barn. Resultaten i stort visar att fonologisk lästräning vid datorn i barnens hem är en alternativ metod att stödja inte bara barn i risk att utveckla lässvårigheter, utan även döva och hörselskadade barns fonologi och avkodningsförmåga.

Place, publisher, year, edition, pages
Linköping: Linköping University Electronic Press, 2014. 108 p.
Series
Linköping Studies in Arts and Science, ISSN 0282-9800 ; 627Studies from the Swedish Institute for Disability Research, ISSN 1650-1128 ; 63
Keyword
Computer-assisted reading intervention, phonics approach, deaf and hard of hearing, children, cochlear implants, hearing aids, Datorbaserad fonologisk lästräning, döva och hörselskadade barn, cochleaimplantat, hörapparat
National Category
Other Health Sciences
Identifiers
urn:nbn:se:liu:diva-108902 (URN)10.3384/diss.diva-108902 (DOI)978-91-7519-270-3 (ISBN)
Public defence
2014-09-05, I:101, Hus I, Campus Valla, Linköpings universitet, Linköping, 10:00 (Swedish)
Supervisors
Available from: 2014-07-11 Created: 2014-07-11 Last updated: 2014-09-09Bibliographically approved

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Nakeva von Mentzer, CeciliaLyxell, BjörnDahlström, Örjan

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The Swedish Institute for Disability ResearchDisability ResearchFaculty of Arts and SciencesDepartment of Otorhinolaryngology in Linköping
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