Testing listening effort for speech comprehension
2011 (English)Conference paper (Other academic)
One aim of hearing aid fitting is to reduce the effort of understanding speech, especially in noisy environments. For a good hearing aid fitting, knowledge about the patient’s auditory abilities is necessary, but knowledge about cognitive abilities may also be important.
The Auditory Inference Span Test (AIST) is a dual-task hearing-in-noise test, that combines auditory and memory processing. In AIST, Hagerman sentences are presented in steady state speech-shaped noise at -2dB, -4dB or -6dB SNR and the subject is required to recall and process the information from the sentences by giving button-press responses to multiple-choice questions thereby assessing what the subject could infer from what was heard.
AIST will be administered to 40 normal hearing subjects (29 to date) and performance related to speech reception threshold, working memory capacity and updating ability, as well as subjective rating of listening effort. Preliminary results show a greater SNR-related improvement in AIST scores at low SNRs than can be explained by improved audibility alone, consistent with release of memory resources due to reduced listening effort. There is also a trend towards a positive relationship between AIST scores and individual working memory capacity and updating ability.
Place, publisher, year, edition, pages
2011. 73-80 p.
National CategoryOther Medical Sciences not elsewhere specified
IdentifiersURN: urn:nbn:se:liu:diva-71189OAI: oai:DiVA.org:liu-71189DiVA: diva2:446419
International Symposium on Auditory and Audiological Research, 24 - 26 August 2011, Nyborg, Denmark