持续的视觉注意力负荷会调节老年人和年轻人的视听整合。

IF 2.4 4区 心理学 Q2 PSYCHOLOGY, EXPERIMENTAL
I-Perception Pub Date : 2023-02-23 eCollection Date: 2023-01-01 DOI:10.1177/20416695231157348
Yanna Ren, Hannan Li, Yan Li, Zhihan Xu, Rui Luo, Hang Ping, Xuan Ni, Jiajia Yang, Weiping Yang
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引用次数: 0

摘要

以往的研究表明,注意力在多个阶段影响视听整合(AVI),但视听整合如何与注意力负荷相互作用仍不清楚。此外,虽然衰老与感觉功能衰退有关,但人们对老年人如何在注意力负荷下整合跨模态信息却知之甚少。为了研究这些问题,研究人员招募了 20 名老年人和 20 名年轻人,让他们执行一项双重任务,包括一项多目标跟踪(MOT)任务和一项视听辨别任务,前者可操控持续的视觉注意负荷,后者则可评估视听综合能力。结果表明,与单独的听觉或视觉刺激相比,视听刺激的反应时间更短,命中率更高,而且年轻人的命中率高于老年人。竞赛模型分析表明,在负载_3 条件下(监控 MOT 任务的两个目标),AVI 比任何其他负载条件下(无负载 [NL]、监控一个或三个目标)都高。这种效应与年龄无关。然而,在 NL 条件下,老年人的 AVI 低于年轻人。此外,在所有条件下,老年人的峰值潜伏期都比年轻人长,而且 AVI 的时间窗口也比年轻人延迟。这些结果表明,轻微的视觉持续注意负荷会增加 AVI,但严重的视觉持续注意负荷会降低 AVI,这支持了注意资源有限的说法,我们进一步提出 AVI 受注意资源的正向调节。最后,老龄化对视差有很大影响;老年人的视差延迟。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Sustained visual attentional load modulates audiovisual integration in older and younger adults.

Sustained visual attentional load modulates audiovisual integration in older and younger adults.

Sustained visual attentional load modulates audiovisual integration in older and younger adults.

Sustained visual attentional load modulates audiovisual integration in older and younger adults.

Previous studies have shown that attention influences audiovisual integration (AVI) in multiple stages, but it remains unclear how AVI interacts with attentional load. In addition, while aging has been associated with sensory-functional decline, little is known about how older individuals integrate cross-modal information under attentional load. To investigate these issues twenty older adults and 20 younger adults were recruited to conduct a dual task including a multiple object tracking (MOT) task, which manipulated sustained visual attentional load, and an audiovisual discrimination task, which assesses AVI. The results showed that response times were shorter and hit rate was higher for audiovisual stimuli than for auditory or visual stimuli alone and in younger adults than in older adults. The race model analysis showed that AVI was higher under the load_3 condition (monitoring two targets of the MOT task) than under any other load condition (no-load [NL], one or three targets monitoring). This effect was found regardless of age. However, AVI was lower in older adults than younger adults under NL condition. Moreover, the peak latency was longer, and the time window of AVI was delayed in older adults compared to younger adults under all conditions. These results suggest that slight visual sustained attentional load increased AVI but that heavy visual sustained attentional load decreased AVI, which supports the claim that attention resource was limited, and we further proposed that AVI was positively modulated by attentional resource. Finally, there were substantial impacts of aging on AVI; AVI was delayed in older adults.

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来源期刊
I-Perception
I-Perception PSYCHOLOGY, EXPERIMENTAL-
CiteScore
4.30
自引率
5.30%
发文量
39
审稿时长
12 weeks
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