期刊
EXPERIMENTAL BRAIN RESEARCH
卷 201, 期 3, 页码 385-392出版社
SPRINGER
DOI: 10.1007/s00221-009-2045-5
关键词
Multisensory integration; Eye movements; Saccades; Curvature; Aging
资金
- Natural Sciences and Engineering Council of Canada [482547]
- Canadian Institutes of Health Research [MOP89769]
- U. S. National Institute on Aging [R37 AGO4306]
The present study had two aims. First, to determine if bimodal audio-visual targets allow for greater inhibition of visual distractors, which in turn may lead to greater saccadic trajectory deviations away from those distractors. Second, to determine if bimodal targets can reduce age differences in the ability to generate deviations away, as older adults tend to benefit more from multisensory integration than younger adults. The results show that bimodal targets produced larger deviations away than unimodal targets, but only when the distractor preceded the target, and this effect was comparable across age groups. Furthermore, in contrast to previous research, older adults in this study showed similar deviations away from distractors to those of younger adults. These findings suggest that age differences in the production of trajectory deviations away are not inevitable and that multisensory integration may be an important means for increasing top-down inhibition of irrelevant distraction.
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