Abstract

Age-related hearing loss typically affects the hearing of high frequencies in older adults. Such hearing loss influences the processing of spoken language, including higher-level processing such as that of complex sentences. Hearing aids may alleviate some of the speech processing disadvantages associated with hearing loss. However, little is known about the relation between hearing loss, hearing aid use, and their effects on higher-level language processes. This neuroimaging (fMRI) study examined these factors by measuring the comprehension and neural processing of simple and complex spoken sentences in hard-of-hearing older adults (n = 39). Neither hearing loss severity nor hearing aid experience influenced sentence comprehension at the behavioral level. In contrast, hearing loss severity was associated with increased activity in left superior frontal areas and the left anterior insula, but only when processing specific complex sentences (i.e. object-before-subject) compared to simple sentences. Longer hearing aid experience in a sub-set of participants (n = 19) was associated with recruitment of several areas outside of the core speech processing network in the right hemisphere, including the cerebellum, the precentral gyrus, and the cingulate cortex, but only when processing complex sentences. Overall, these results indicate that brain activation for language processing is affected by hearing loss as well as subsequent hearing aid use. Crucially, they show that these effects become apparent through investigation of complex but not simple sentences.

Details

Title
Effects of age-related hearing loss and hearing aid experience on sentence processing
Author
Vogelzang Margreet 1 ; Thiel, Christiane M 2 ; Rosemann, Stephanie 2 ; Rieger, Jochem W 3 ; Ruigendijk Esther 4 

 University of Oldenburg, Institute of Dutch Studies, Oldenburg, Germany (GRID:grid.5560.6) (ISNI:0000 0001 1009 3608); University of Oldenburg, Cluster of Excellence “Hearing4all”, Oldenburg, Germany (GRID:grid.5560.6) (ISNI:0000 0001 1009 3608); University of Cambridge, Department of Theoretical and Applied Linguistics, Cambridge, UK (GRID:grid.5335.0) (ISNI:0000000121885934) 
 University of Oldenburg, Biological Psychology, Department of Psychology, Department for Medicine and Health Sciences, Oldenburg, Germany (GRID:grid.5560.6) (ISNI:0000 0001 1009 3608); University of Oldenburg, Cluster of Excellence “Hearing4all”, Oldenburg, Germany (GRID:grid.5560.6) (ISNI:0000 0001 1009 3608) 
 University of Oldenburg, Applied Neurocognitive Psychology, Department of Psychology, Oldenburg, Germany (GRID:grid.5560.6) (ISNI:0000 0001 1009 3608); University of Oldenburg, Cluster of Excellence “Hearing4all”, Oldenburg, Germany (GRID:grid.5560.6) (ISNI:0000 0001 1009 3608) 
 University of Oldenburg, Institute of Dutch Studies, Oldenburg, Germany (GRID:grid.5560.6) (ISNI:0000 0001 1009 3608); University of Oldenburg, Cluster of Excellence “Hearing4all”, Oldenburg, Germany (GRID:grid.5560.6) (ISNI:0000 0001 1009 3608) 
Publication year
2021
Publication date
2021
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2501654129
Copyright
© The Author(s) 2021. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.