Journal article

Audio-visual integration in cochlear implant listeners and the effect of age difference

Xin Zhou, Hamish Innes-Brown, Colette M McKay

The Journal of the Acoustical Society of America | ACOUSTICAL SOC AMER AMER INST PHYSICS | Published : 2019


This study aimed to investigate differences in audio-visual (AV) integration between cochlear implant (CI) listeners and normal-hearing (NH) adults. A secondary aim was to investigate the effect of age differences by examining AV integration in groups of older and younger NH adults. Seventeen CI listeners, 13 similarly aged NH adults, and 16 younger NH adults were recruited. Two speech identification experiments were conducted to evaluate AV integration of speech cues. In the first experiment, reaction times in audio-alone (A-alone), visual-alone (V-alone), and AV conditions were measured during a speeded task in which participants were asked to identify a target sound /aSa/ among 11 alterna..

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Funding Acknowledgements

The authors thank Ms. Renee Tsongas in the University of Melbourne for the speech video recording. The authors appreciate the support from all the research participants in Melbourne, Australia. This research was supported by a Melbourne University Ph.D. scholarship to X.Z., a veski fellowship, and a Garnett Passe grant to C.M.M. The Bionics Institute acknowledges the support it receives from the Victorian Government through its Operational Infrastructure Support Program.