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Dynamic relation between working memory capacity and speech recognition in noise during the first 6 months of hearing aid use.
Trends Hear. 2014 Nov 23; 18TH

Abstract

The present study aimed to investigate the changing relationship between aided speech recognition and cognitive function during the first 6 months of hearing aid use. Twenty-seven first-time hearing aid users with symmetrical mild to moderate sensorineural hearing loss were recruited. Aided speech recognition thresholds in noise were obtained in the hearing aid fitting session as well as at 3 and 6 months postfitting. Cognitive abilities were assessed using a reading span test, which is a measure of working memory capacity, and a cognitive test battery. Results showed a significant correlation between reading span and speech reception threshold during the hearing aid fitting session. This relation was significantly weakened over the first 6 months of hearing aid use. Multiple regression analysis showed that reading span was the main predictor of speech recognition thresholds in noise when hearing aids were first fitted, but that the pure-tone average hearing threshold was the main predictor 6 months later. One way of explaining the results is that working memory capacity plays a more important role in speech recognition in noise initially rather than after 6 months of use. We propose that new hearing aid users engage working memory capacity to recognize unfamiliar processed speech signals because the phonological form of these signals cannot be automatically matched to phonological representations in long-term memory. As familiarization proceeds, the mismatch effect is alleviated, and the engagement of working memory capacity is reduced.

Authors+Show Affiliations

Linnaeus Centre HEAD, Swedish Institute for Disability Research, Linköping University, Sweden Department of Behavioural Sciences and Learning, Linköping University, Sweden hoi.ning.ng@liu.se.Linnaeus Centre HEAD, Swedish Institute for Disability Research, Linköping University, Sweden Department of Behavioural Sciences and Learning, Linköping University, Sweden.Linnaeus Centre HEAD, Swedish Institute for Disability Research, Linköping University, Sweden Department of Clinical and Experimental Medicine, Linköping University, Sweden.Linnaeus Centre HEAD, Swedish Institute for Disability Research, Linköping University, Sweden Department of Clinical and Experimental Medicine, Linköping University, Sweden.Linnaeus Centre HEAD, Swedish Institute for Disability Research, Linköping University, Sweden Department of Behavioural Sciences and Learning, Linköping University, Sweden Eriksholm Research Centre, Oticon A/S, Snekkersten, Denmark.Linnaeus Centre HEAD, Swedish Institute for Disability Research, Linköping University, Sweden Department of Behavioural Sciences and Learning, Linköping University, Sweden.Linnaeus Centre HEAD, Swedish Institute for Disability Research, Linköping University, Sweden Department of Behavioural Sciences and Learning, Linköping University, Sweden.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

25421088

Citation

Ng, Elaine H N., et al. "Dynamic Relation Between Working Memory Capacity and Speech Recognition in Noise During the First 6 Months of Hearing Aid Use." Trends in Hearing, vol. 18, 2014.
Ng EH, Classon E, Larsby B, et al. Dynamic relation between working memory capacity and speech recognition in noise during the first 6 months of hearing aid use. Trends Hear. 2014;18.
Ng, E. H., Classon, E., Larsby, B., Arlinger, S., Lunner, T., Rudner, M., & Rönnberg, J. (2014). Dynamic relation between working memory capacity and speech recognition in noise during the first 6 months of hearing aid use. Trends in Hearing, 18. https://doi.org/10.1177/2331216514558688
Ng EH, et al. Dynamic Relation Between Working Memory Capacity and Speech Recognition in Noise During the First 6 Months of Hearing Aid Use. Trends Hear. 2014 Nov 23;18 PubMed PMID: 25421088.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Dynamic relation between working memory capacity and speech recognition in noise during the first 6 months of hearing aid use. AU - Ng,Elaine H N, AU - Classon,Elisabet, AU - Larsby,Birgitta, AU - Arlinger,Stig, AU - Lunner,Thomas, AU - Rudner,Mary, AU - Rönnberg,Jerker, Y1 - 2014/11/23/ PY - 2014/11/26/entrez PY - 2014/11/26/pubmed PY - 2015/1/27/medline KW - cognitive abilities KW - hearing aid KW - speech recognition KW - working memory JF - Trends in hearing JO - Trends Hear VL - 18 N2 - The present study aimed to investigate the changing relationship between aided speech recognition and cognitive function during the first 6 months of hearing aid use. Twenty-seven first-time hearing aid users with symmetrical mild to moderate sensorineural hearing loss were recruited. Aided speech recognition thresholds in noise were obtained in the hearing aid fitting session as well as at 3 and 6 months postfitting. Cognitive abilities were assessed using a reading span test, which is a measure of working memory capacity, and a cognitive test battery. Results showed a significant correlation between reading span and speech reception threshold during the hearing aid fitting session. This relation was significantly weakened over the first 6 months of hearing aid use. Multiple regression analysis showed that reading span was the main predictor of speech recognition thresholds in noise when hearing aids were first fitted, but that the pure-tone average hearing threshold was the main predictor 6 months later. One way of explaining the results is that working memory capacity plays a more important role in speech recognition in noise initially rather than after 6 months of use. We propose that new hearing aid users engage working memory capacity to recognize unfamiliar processed speech signals because the phonological form of these signals cannot be automatically matched to phonological representations in long-term memory. As familiarization proceeds, the mismatch effect is alleviated, and the engagement of working memory capacity is reduced. SN - 2331-2165 UR - https://www.unboundmedicine.com/medline/citation/25421088/Dynamic_relation_between_working_memory_capacity_and_speech_recognition_in_noise_during_the_first_6_months_of_hearing_aid_use_ L2 - https://journals.sagepub.com/doi/10.1177/2331216514558688?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub=pubmed DB - PRIME DP - Unbound Medicine ER -