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Reading span performance in 339 Swedish 50-89 year old individuals with hearing impairment: Effects of test version and age, and relation to speech recognition in noise
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.
Linköping University, Department of Behavioural Sciences and Learning, Disability Research. Linköping University, The Swedish Institute for Disability Research. Linköping University, Faculty of Arts and Sciences. Linnaeus Centre HEAD.
Linköping University, The Swedish Institute for Disability Research. Linköping University, Department of Clinical and Experimental Medicine, Division of Neuroscience. Linköping University, Faculty of Health Sciences.
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.
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2013 (English)Manuscript (preprint) (Other academic)
Abstract [en]

The Swedish reading span test (Rönnberg, Lyxell, Arlinger, & Kinnefors, 1989) is often used to assess working memory capacity (WMC) in the field of cognitive hearing science. The test has proven useful as a predictor of speech recognition in noise in adverse conditions. It has been used in a wide range of experimental studies and has been translated to several languages. The purpose of this paper was to provide reference data for the Swedish reading span test (Rönnberg et al., 1989) in a large sample of adults with hearing impairment aged 50-89 years that are representative of patients seeking rehabilitation at audiological clinics. Data from finished and ongoing projects were collated and reanalyzed for this purpose. The original full version and a shortened version of the test were compared, in terms of percentage correct. In addition, performance on the full version was compared across two different age-cohorts, 50-69 year olds and 70-89 year olds. Frequency distributions and percentile scores are reported, as well as relations with demographic variables, and speech recognition in noise. Results showed that reading span performance was related to age, but not sex, with lower scores in older participants. Pure tone hearing thresholds accounted for a small but significant amount of the variance such that higher reading span scores were related to better hearing. The frequency distributions of scores did not differ across the two versions of the test, but the long version seemed to be more sensitive to age. Performance in both versions was significantly correlated with speech recognition in noise. Regression analyses however showed that reading span explained additional variance in speech in noise recognition, after the effects of age and pure tone hearing thresholds were accounted for, only in the 50-69 year olds. These findings are discussed in relation to  age-related differences in the ability to recruit cognitive resources in the service of speech communication.

Place, publisher, year, edition, pages
2013.
National Category
Social Sciences
Identifiers
URN: urn:nbn:se:liu:diva-99780OAI: oai:DiVA.org:liu-99780DiVA: diva2:658168
Available from: 2013-10-21 Created: 2013-10-21 Last updated: 2017-11-06Bibliographically approved
In thesis
1. Representing sounds and spellings: Phonological decline and compensatory working memory in acquired hearing impairment
Open this publication in new window or tab >>Representing sounds and spellings: Phonological decline and compensatory working memory in acquired hearing impairment
2013 (English)Doctoral thesis, comprehensive summary (Other academic)
Alternative title[sv]
Representationer av ljud och stavning : Försämrad fonologisk förmåga och kompensatoriskt arbetsminne vid förvärvad hörselnedsättning
Abstract [en]

This thesis examined phonological processing in adults with postlingually acquired moderate-to-severe hearing impairment (HI) and whether explicit working memory processing of phonology and individual working memory capacity (WMC) can compensate for degraded phonological representations in this group (papers I-III). A second aim was to provide reference data for a test of WMC, the reading span test, and to examine the relation between reading span test performance and speech recognition in noise in a larger sample of 50-89 year olds with HI (paper IV). Non-auditory tasks of phonological processing, episodic long-term memory and WMC were used in papers I-III, and both behavioral and electrophysiological measures were collected. Results showed that phonological processing was impaired in the group with HI but that WMC and explicit working memory processing of phonology could be employed to compensate for degraded phonological representations. However, this compensation may come at the cost of interfering with episodic memory encoding. An  electrophysiological marker of HI in text-based rhyme judgments was found. Paper IV presented reference data for reading span test performance in two versions of the test in individuals with HI, and results suggesting that WMC may be differentially predictive of speech recognition in noise in different age groups of older adults with HI. The clinical implications of the present results concerns the double disadvantage of individuals with lower WMC and HI. A structured assessment of WMC in rehabilitative settings would help to identify these individuals and tailor treatment to their needs. The reading span test is suggested as a suitable future candidate for clinical WMC assessment.

Abstract [sv]

I denna avhandling undersöktes fonologiska processer hos personer med postlingualt förvärvad, måttlig till mycket grav hörselnedsättning (HNS) och om inkoppling av explicit bearbetning av fonologi eller individuell arbetsminneskapacitet kan kompensera för försämrade ljudminnen i denna grupp (studie I-III). Ett andra syfte var att sammanställa referensdata för ett test av arbetsminneskapacitet, lässpann, och undersöka relationen mellan prestation på lässpann ochigenkänning av tal-i-brus i en större grupp av 50-89 åriga personer  med HNS (studie IV). Icke-auditiva test av fonologisk förmåga, episodiskt långtidsminne och arbetsminneskapacitet användes i studie I-III och både beteendedata och elektrofysiologiska data samlades in. Resultaten visade på försämrad fonologisk förmåga i gruppen med HNS men också att explicit bearbetning av fonologi och arbetsminneskapacitet kunde användas för att kompensera för försämrade fonologiska representationer i denna grupp. Denna kompensation kan dock ske på bekostnad av att inkodning i episodiska långtidsminnet störs. Vidare identifierades en elektrofysiologisk markör för HNS i en textbaserad rimuppgift. I studie IV presenterades referensdata i två versioner av lässpanntestet för personer med mild till mycket grav HN och resultat som pekar mot möjliga skillnader mellan olika åldersgrupper i hur väl arbetsminneskapacitet predicerar igenkänning av tal-i-brus. Kliniska implikationer rör den dubbla belastning det innebär att ha både en HN och relativt sänkt arbetsminneskapacitet. En strukturerad bedömning av arbetsminneskapacitet i samband med rehabilitering skulle kunna bidra till att synliggöra dessa personer och anpassa insatser efter deras behov. Lässpanntestet är ett test som i framtiden skulle kunna vara användbart i det sammanhanget.

Place, publisher, year, edition, pages
Linköping: Linköping University Electronic Press, 2013. 57 p.
Series
Linköping Studies in Arts and Science, ISSN 0282-9800 ; 591Studies from the Swedish Institute for Disability Research, ISSN 1650-1128 ; 54
Keyword
Acquired hearing impairment, phonology, WMC, reading span, Förvärvad hörselnedsättning, fonologi, arbetsminne, lässpann
National Category
Medical and Health Sciences Social Sciences
Identifiers
urn:nbn:se:liu:diva-99786 (URN)10.3384/diss.diva-99786 (DOI)978-91-7519-500-1 (ISBN)
Public defence
2013-11-08, I:101, Hus I, Campus Valla, Linköpings universitet, Linköping, 13:00 (English)
Opponent
Supervisors
Available from: 2013-10-21 Created: 2013-10-21 Last updated: 2013-10-30Bibliographically approved

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Classon, ElisabetNg, Hoi Ning ElaineArlinger, StigKilman, LisaLarsby, BirgittaLyxell, BjörnLunner, ThomasMishra, SushmitRudner, MaryRönnberg, Jerker

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Classon, ElisabetNg, Hoi Ning ElaineArlinger, StigKilman, LisaLarsby, BirgittaLyxell, BjörnLunner, ThomasMishra, SushmitRudner, MaryRönnberg, Jerker
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The Swedish Institute for Disability ResearchDisability ResearchFaculty of Arts and SciencesDivision of NeuroscienceFaculty of Health SciencesDepartment of Otorhinolaryngology in Linköping
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