age differences in visual-auditory self-motion perception during a simulated driving task
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ID: 174826
2016
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Abstract
Recent evidence suggests that visual-auditory cue integration may change as a function of age such that integration is heightened among older adults. Our goal was to determine whether these changes in multisensory integration are also observed in the context of self-motion perception under realistic task constraints. Thus, we developed a simulated driving paradigm in which we provided older and younger adults with visual motion cues (i.e. optic flow) and systematically manipulated the presence or absence of congruent auditory cues to self-motion (i.e. engine, tire, and wind sounds). Results demonstrated that the presence or absence of congruent auditory input had different effects on older and younger adults. Both age groups demonstrated a reduction in speed variability when auditory cues were present compared to when they were absent, but older adults demonstrated a proportionally greater reduction in speed variability under combined sensory conditions. These results are consistent with evidence indicating that multisensory integration is heightened in older adults. Importantly, this study is the first to provide evidence to suggest that age differences in multisensory integration may generalize from simple stimulus detection tasks to the integration of the more complex and dynamic visual and auditory cues that are experienced during self-motion.
| Reference Key |
eramkhalawansingh2016frontiersage
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|---|---|
| Authors | ;Robert eRamkhalawansingh;Robert eRamkhalawansingh;Behrang eKeshavarz;Bruce eHaycock;Saba eShahab;Jennifer eCampos;Jennifer eCampos |
| Journal | accounts of chemical research |
| Year | 2016 |
| DOI |
10.3389/fpsyg.2016.00595
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| URL | |
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