老年人与年轻人视听整合差异对比——以基于Gabor视标的辨别任务为例
Comparison of Differences in Audiovisual Integration between the Elderly and the Young—With Example of Discrimination Task Based on Gabor Patch
DOI: 10.12677/AR.2022.93003, PDF,    科研立项经费支持
作者: 平 航, 罗 瑞, 段杰萍, 钱润祺, 李舒婧, 李 燕*：贵州中医药大学人文与管理学院，贵州 贵阳
关键词: 视听整合；辨别任务；竞争模型；老年人；Gabor视标；Audiovisual Integration； Discrimination Task； Race Model； Older Adults； Gabor Patch
摘要: 随着年龄的增长，老年人的视敏度趋于下降，听力阈限也在逐步提高，老年人的视听整合能力是强于还是弱于年轻人，目前仍存在争议。本研究采用基于Gabor视标的视听觉辨别任务，运用2(群体：老年人，年轻人) × 3(刺激类型：视觉刺激，听觉刺激，视听觉刺激)的被试间实验设计，以考察老年人与年轻人的视听整合差异。平均反应时的结果显示，两类人群对视听觉刺激的反应显著快于对单独视觉刺激、单独听觉刺激的反应，而年轻人对单独听觉刺激、视听觉刺激的反应要显著快于老年人。进一步的竞争模型研究结果表明，与年轻人相比，老年人视听整合效应延迟、视听整合的时间窗口更长、峰值更低。
Abstract: With the increase of age, the visual acuity of the elderly tends to decrease and their auditory threshold gradually increases as well. However, whether AVI ability is enhanced or weakened with aging is still controversial. This study adopted an audio-visual discrimination task based on the Gabor patch and used a 2(group: older adults, younger adults) × 3(stimulus type: auditory, visual, audiovisual) between-subjects experimental design to investigate the differences in audiovisual integration between the elderly and the young. The results for the mean response times showed a significantly faster response to the audiovisual (AV) stimulus than that to the auditory (A) or visual (V) stimulus in both groups and a significantly faster response to both auditory (A) and audiovisual (AV) stimulus by the younger adults than that by the older adults. In addition, a further comparison of the differences between the probability of audio-visual cumulative distributive functions (CDFs) and race model CDFs showed more delayed and lower AVI effects and a longer time window for AVI in older adults than that in younger in the discrimination task.
文章引用：平航, 罗瑞, 段杰萍, 钱润祺, 李舒婧, 李燕. 老年人与年轻人视听整合差异对比——以基于Gabor视标的辨别任务为例[J]. 老龄化研究, 2022, 9(3): 17-25. https://doi.org/10.12677/AR.2022.93003

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