Cognitive hearing aids and top-down/bottom-up issues
2014 (English)In: Abstract book, 2014, 39-40 p.Conference paper, Abstract (Other academic)
Working memory is important for online language processing in a dialogue. We use it to store, to inhibit or ignore what is not relevant, and to attend to things selectively. lt is our way of keeping track while taking tums or following the gist of the dialogue. The Ease-of Language Understanding (ELU) model describes the role of working memory capacity (WMC) in sound and speech processing and attempts to explain findings on e.g. the relationship between WMC and speech signal processing and short-term retention and the effects of hearing impairment on memory.
In a given listening situation, the mental/cognitive state may be different in the same acoustic environment if the cognitive tasks differ including e.g. single task versus dual task, time of the day, fatigue, or attention to different sources. Hearing aids include automatics to control signal processing schemas like noise reduction and beamforming/directional microphones. The different mental states during listening indicates that for a hearing aid it might not be enough with just measuring acoustics, it might be necessary to monitor cognitive parameters and make decisions on hearing aid settings, i.e. cognition-driven hearing aids. New technological developments relevant for auditory processing include physiological monitoring via e.g. the electroencephalogram (EEG), and via pupillometry. In the presentation some ideas will be reviewed and some preliminary work will be presentad on (a) cognitive load monitoring for hearing aid control, and (b) attention modulation, i.e. which source is attended to?
Place, publisher, year, edition, pages
2014. 39-40 p.
Psychology (excluding Applied Psychology)
IdentifiersURN: urn:nbn:se:liu:diva-126565OAI: oai:DiVA.org:liu-126565DiVA: diva2:915477
HEaring Across the Lifespan (HEAL). Cernobbio, Lake Como, Italy, June 5-7, 2014