Comparison of gated audiovisual speech perception between elderly hearing-aid users and elderly normal-hearing listeners
2015 (English)Conference paper, Poster (Other academic)
The addition of visual cues to amplified auditory signals by hearing aids resulted in better identification of speech stimuli relative to unaided audiovisual or aided auditory-only conditions (Walden et al., 2001). An important question that remains unexplored is whether hearing-aid users have the same level of ability for audiovisual speech perception relative to their age-matched normal hearing counterparts.
Here we present the preliminary findings from collected data of 18 elderly hearing-aid users and 18 normal-hearing listeners in gated-audiovisual identification of different types of speech stimuli (consonants, words, and final words in low-predictable and high-predictable sentences). In terms of isolation point (IP; the shortest time from the onset of an speech stimulus required for correct identification of that speech stimulus), results showed that elderly hearing-aid users needed more IPs for identification of consonants and words than elderly normal-hearing individuals under quiet condition. There were no differences between two groups in IPs needed for identification of final words embedded in low-predictable or high-predictable sentences. In terms of accuracy, both elderly hearing-aid and elderly normal-hearing groups achieved ceiling on audiovisual identification of speech stimuli under quiet condition.
Place, publisher, year, edition, pages
IdentifiersURN: urn:nbn:se:liu:diva-123283OAI: oai:DiVA.org:liu-123283DiVA: diva2:881010
Conference on Cognitive Hearing Science for Communication (CHCCOM2015), Linköping, June 14-17, 2015