Sustained Auditory Attentional Load Decreases Audiovisual Integration in Older and Younger Adults.

IF 3 4区医学 Q2 NEUROSCIENCES

Neural Plasticity Pub Date : 2021-01-01 DOI:10.1155/2021/4516133

Yanna Ren, Yawei Hou, Jiayu Huang, Fanghong Li, Tao Wang, Yanling Ren, Weiping Yang

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引用次数: 6

Abstract

The modulation of attentional load on the perception of auditory and visual information has been widely reported; however, whether attentional load alters audiovisual integration (AVI) has seldom been investigated. Here, to explore the effect of sustained auditory attentional load on AVI and the effects of aging, nineteen older and 20 younger adults performed an AV discrimination task with a rapid serial auditory presentation task competing for attentional resources. The results showed that responses to audiovisual stimuli were significantly faster than those to auditory and visual stimuli (AV > V ≥ A, all p < 0.001), and the younger adults were significantly faster than the older adults under all attentional load conditions (all p < 0.001). The analysis of the race model showed that AVI was decreased and delayed with the addition of auditory sustained attention (no_load > load_1 > load_2 > load_3 > load_4) for both older and younger adults. In addition, AVI was lower and more delayed in older adults than in younger adults in all attentional load conditions. These results suggested that auditory sustained attentional load decreased AVI and that AVI was reduced in older adults.

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持续听觉注意力负荷降低老年人和年轻人的视听整合。

注意负荷对听觉和视觉信息感知的调节已被广泛报道;然而，关于注意负荷是否会改变视听整合(AVI)的研究却很少。为了探讨持续听觉注意负荷对AVI的影响以及年龄的影响，19名老年人和20名年轻人分别执行了AV辨别任务和快速连续听觉呈现任务，以争夺注意资源。结果表明，在所有注意负荷条件下，青年人对视听刺激的反应均显著快于对听觉和视觉刺激的反应(AV > V≥A, p均< 0.001)，且在所有注意负荷条件下，青年人的反应均显著快于老年人(p均< 0.001)。种族模型分析表明，随着听觉持续注意的增加，老年人和年轻人的AVI均呈no_load > load_1 > load_2 > load_3 > load_4的下降和延迟趋势。此外，在所有注意负荷条件下，老年人的AVI比年轻人低且延迟。这些结果表明，听觉持续注意负荷降低了AVI，老年人的AVI降低。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Neural Plasticity NEUROSCIENCES-

CiteScore

6.80

自引率

0.00%

发文量

审稿时长

16 weeks

期刊介绍： Neural Plasticity is an international, interdisciplinary journal dedicated to the publication of articles related to all aspects of neural plasticity, with special emphasis on its functional significance as reflected in behavior and in psychopathology. Neural Plasticity publishes research and review articles from the entire range of relevant disciplines, including basic neuroscience, behavioral neuroscience, cognitive neuroscience, biological psychology, and biological psychiatry.