突出的,意想不到的声音缺失可能会无意中分散注意力
Valeria Baragona1,2, Erich Schröger1,2, Andreas Widmann1
1Wilhelm Wundt Institute for Psychology, Leipzig University, Germany.
Journal of cognitive neuroscience
|February 7, 2025
概括
意想不到的声音,甚至是它们的遗漏,都会从任务中分散注意力,影响表现和注意力. 这种非自愿的注意力是由违反感官预测的行为驱动的,影响反应时间和生理反应.
科学领域:
- 认知神经科学 认知神经科学
- 听觉感知是一种听觉感知.
- 注意力研究研究研究研究
背景情况:
- 突出的,意想不到的声音吸引了注意力,导致分心和性能受损.
- 像瞳孔膨胀反应 (PDR) 和P3a事件相关潜力 (ERP) 这样的生理标记伴随着分心.
- 之前的研究表明,在声音遗漏后,反应时间 (RTs) 延长,但原因 (警告缺失与预测违规) 尚不清楚.
研究的目的:
- 通过违反感官预测来调查意外的声音遗漏是否起到分散注意力的作用.
- 区分声音的警告效应和意外事件 (偏差和遗漏) 的分心效应.
- 检查声音预期违规对反应时间,PDR和P3a ERP组件的影响.
主要方法:
- 参与者通过按下按开始试验后执行了一个视觉数字分类任务.
- 听觉刺激包括正常声音 (80%),偏差声音 (10%) 和声音遗漏 (10%).
- 使用没有预期声音的控制条件来隔离警告和分心效应.
主要成果:
- 意想不到的声音偏差和遗漏延长了RT,扩大了PDR,并引起了P3a类ERP,表明分心.
- 预期的声音事件 (与没有声音相比) 导致更快的RT,更大的PDR和增加的P3a,显示出警告效应.
- 同时观察到警告和分心效应,这表明声音和它们的遗漏都能引起注意.
结论:
- 意想不到的听觉事件,包括遗漏,通过违反感官预测来发挥突出的分心作用.
- 不自愿的注意力与预测违规密切相关,正如对意想不到的声音和它们的缺席的反应所证明的那样.
- 这些发现支持了一些理论,即非自愿注意力机制是由预期的感官输入的偏差引发的.
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