Cognition and hearing aids
2009 (English)In: Scandinavian Journal of Psychology, ISSN 0036-5564, E-ISSN 1467-9450, Vol. 50, no 5, 395-403 p.Article in journal (Refereed) Published
The perceptual information transmitted from a damaged cochlea to the brain is more poorly specified than information from an intact cochlea and requires more processing in working memory before language content can be decoded. In addition to making sounds audible, current hearing aids include several technologies that are intended to facilitate language understanding for persons with hearing impairment in challenging listening situations. These include directional microphones, noise reduction, and fast-acting amplitude compression systems. However, the processed signal itself may challenge listening to the extent that with specific types of technology, and in certain listening situations, individual differences in cognitive processing resources may determine listening success. Here, current and developing digital hearing aid signal processing schemes are reviewed in the light of individual working memory (WM) differences. It is argued that signal processing designed to improve speech understanding may have both positive and negative consequences, and that these may depend on individual WM capacity.
Place, publisher, year, edition, pages
2009. Vol. 50, no 5, 395-403 p.
Working memory; hearing aids; signal processing; cognition; noise reduction
IdentifiersURN: urn:nbn:se:liu:diva-108568DOI: 10.1111/j.1467-9450.2009.00742.xOAI: oai:DiVA.org:liu-108568DiVA: diva2:730995