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Comparative Study
. 2017 Jul;142(1):151.
doi: 10.1121/1.4992026.

Recognition of asynchronous auditory-visual speech by younger and older listeners: A preliminary study

Sandra Gordon-Salant  1 , Grace H Yeni-Komshian  1 , Peter J Fitzgibbons  1 , Hannah M Willison  1 , Maya S Freund  1
Affiliations
Comparative Study

Recognition of asynchronous auditory-visual speech by younger and older listeners: A preliminary study

Sandra Gordon-Salant et al. J Acoust Soc Am. 2017 Jul.

Abstract

This study examined the effects of age and hearing loss on recognition of speech presented when the auditory and visual speech information was misaligned in time (i.e., asynchronous). Prior research suggests that older listeners are less sensitive than younger listeners in detecting the presence of asynchronous speech for auditory-lead conditions, but recognition of speech in auditory-lead conditions has not yet been examined. Recognition performance was assessed for sentences and words presented in the auditory-visual modalities with varying degrees of auditory lead and lag. Detection of auditory-visual asynchrony for sentences was assessed to verify that listeners detected these asynchronies. The listeners were younger and older normal-hearing adults and older hearing-impaired adults. Older listeners (regardless of hearing status) exhibited a significant decline in performance in auditory-lead conditions relative to visual lead, unlike younger listeners whose recognition performance was relatively stable across asynchronies. Recognition performance was not correlated with asynchrony detection. However, one of the two cognitive measures assessed, processing speed, was identified in multiple regression analyses as contributing significantly to the variance in auditory-visual speech recognition scores. The findings indicate that, particularly in auditory-lead conditions, listener age has an impact on the ability to recognize asynchronous auditory-visual speech signals.

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Figures

FIG. 1.
FIG. 1.
Mean pure-tone thresholds (and standard errors) in dB HL (re: ANSI, 2010) for the three listener groups.
FIG. 2.
FIG. 2.
Mean recognition performance and standard deviations across the different degrees of asynchrony for the three listener groups. Top panel: sentences (40 ms steps), middle panel: multisyllabic words (40 ms steps), bottom panel: monosyllabic words (40 ms steps).
FIG. 3.
FIG. 3.
Mean number of synchronous responses in each degree of asynchrony reported by the three listener groups. Error bars represent one standard deviation.
See this image and copyright information in PMC

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