Multisensory integration, aging, and the sound-induced flash illusion.
Multisensory integration, aging, and the sound-induced flash illusion.
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DOI：
10.1037/a0033289
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发表时间：
2013-09
影响因子：
3.7
通讯作者：
Andersen GJ
中科院分区：
文献类型：
--
作者：
DeLoss DJ;Pierce RS;Andersen GJ
本研究考察了多感觉整合中与年龄相关的差异，以及注意力在多感觉整合中与年龄相关的差异中的作用。声音诱导的闪光错觉-由于同时呈现不同数量的听觉哔哔而对视觉闪光数量的误解-被用来检验年长和年轻的观察者多感觉整合的强度。当辨别1-3次闪光、1-3次哔声或1-3次带有1-3次哔声的闪光时，检查积分的效果。根据这些条件阻断刺激条件，在多感觉阻断期间评估基线(单感)表现。与年轻的观察者相比，年龄较大的参与者表现出更强的多感官整合--在判断视觉闪光次数时，嘟嘟声的影响更大。在第二个实验中，使用去/不去范式来评估注意力的作用。实验2的结果与实验1的结果相同。此外，错觉的强度受Go/no-Go任务的感觉域的调节，尽管这并不因年龄而异。在视觉进行/不进行任务中，我们发现错觉减少，而在听觉进行/不进行任务中，我们发现错觉增加。这些结果表明，与年轻个体相比，年长个体表现出更强的多感觉整合。研究还发现，注意力可以调节声音诱导的闪光错觉的强度。然而，研究结果也表明，注意力不太可能是与年龄相关的多感觉整合差异的一个因素。
The present study examined age-related differences in multisensory integration and the role of attention in age-related differences in multisensory integration. The sound-induced flash illusion---the misperception of the number of visual flashes due to the simultaneous presentation of a different number of auditory beeps---was used to examine the strength of multisensory integration in older and younger observers. The effects of integration were examined when discriminating 1–3 flashes, 1–3 beeps, or 1–3 flashes presented with 1–3 beeps. Stimulus conditions were blocked according to these conditions, with baseline (unisensory) performance assessed during the multisensory block. Older participants demonstrated greater multisensory integration--a greater influence of the beeps when judging the number of visual flashes--than younger observers. In a second experiment, the role of attention was assessed using a go/no-go paradigm. The results of Experiment 2 replicated those of Experiment 1. In addition, the strength of the illusion was modulated by the sensory domain of the go/no-go task, though this did not differ by age group. In the visual go/no-go task we found a decrease in the illusion, while in the auditory go/no-go task we found an increase in the illusion. These results demonstrate that older individuals exhibit increased multisensory integration compared to younger individuals. Attention was also found to modulate the strength of the sound-induced flash illusion. However, the results also suggest that attention was not likely to be a factor in the age-related differences in multisensory integration.
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影响因子：
11.2
作者：
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通讯作者：
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