重复违反事件不会提高对嵌入式内容的敏感性,但重复事件可以降低敏感性
Blake W Saurels1, Qingyu Ma1, Derek H Arnold1
1School of Psychology, University of Queensland.
概括
奇特的范式揭示了预期的事件,而不是新奇事物,影响知觉. 注意力波动和事件概率,而不仅仅是奇怪的状态,影响事件的长度和视力敏度.
科学领域:
- 认知神经科学 认知神经科学
- 感知心理学 感知心理学
- 注意力的神经科学注意力的神经科学
背景情况:
- 奇特的范式呈现重复的刺激 (标准) 与罕见的新兴刺激 (奇特的) 交错.
- 之前的研究表明,奇怪球增强视觉敏感性,并被认为是持久的.
- 在刺激序列中的注意力波动可能会影响这些感知效应.
研究的目的:
- 调查注意力和事件概率在奇怪感知中的作用.
- 为了确定奇怪的视力敏度优势是否在可预测的条件下持续存在.
- 检查瞳孔膨胀,注意力和测试概率之间的关系.
主要方法:
- 使用奇怪范式的两个实验,标准和测试的概率各不相同.
- 对奇怪和重复刺激的时间感知和视觉敏度的测量.
- 瞳孔膨胀被监测为注意力和期望的指标.
主要成果:
- 当所有测试都可预测时,奇怪人群的视力敏度增加消失了.
- 这种敏度优势是由于在不可预测的重复刺激下性能下降的结果.
- 瞳孔膨胀随着即将进行测试的可能性增加而增加,这表明注意力扩大.
结论:
- 奇怪范式中的感知效应被注意力和事件可预测性显著调节.
- 感知到的持续时间和视觉敏度的差异不仅仅是由新性驱动的,而是注意力分配.
- 研究结果强调了注意力,期望和感官处理之间的动态相互作用.
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