视听并行窗口反映了时间感官不确定性
Emma Cary1, Ilona Lahdesmaki1, Stephanie Badde2
1Department of Psychology, Tufts University, Medford, MA, 02155, USA.
Psychonomic bulletin & review
|February 22, 2024
概括
观察者根据他们的时间感官不确定性来调整他们的视听并发性决策边界. 这表明主观标准对视听定时灵活适应个体测量误差,优化多感官感知.
科学领域:
- 认知神经科学 认知神经科学
- 心理物理学的精神物理.
- 听觉视觉感知是一种听觉视觉感知.
背景情况:
- 准确地判断视听时间对齐对于多感官集成和分离至关重要.
- 时间测量本质上容易出错,需要主观的决策边界来解释视听信号.
- 了解感官不确定性如何影响这些决策边界是解释感知灵活性的关键.
研究的目的:
- 为了调查是否主观决策边界的影视同时性调整以应对增加的时间感官不确定性.
- 为了确定观察者的调整是否与面对感官噪声的理想观察者的预测保持一致.
- 探索虚拟环境,时间不确定性和同时性标准之间的关系.
主要方法:
- 参与者判断了视听刺激对的同时性,在不同的虚拟环境中具有不同的时间偏移.
- 采用独立道模型来估计参与者的时间感官不确定性和同时性标准.
- 分析了两项实验的数据,以将决策边界与估计的时间不确定性相关联.
主要成果:
- 参与者的同时性决策边界在很大程度上是由他们估计的时间感官不确定性预测的.
- 时间不确定性在测试的虚拟环境中不系统地变化.
- 根据个人不确定性估计,对视听同时性的主观标准进行了灵活更新.
结论:
- 观察者根据他们当前的跨模式时间不确定性,动态调整他们的视听同时性标准.
- 这种适应性策略表明,视听并发窗口不是固定的,而是反映一个人对感官噪声的实时估计.
- 这些发现突显了大脑在多感官处理中管理感官不确定性的复杂机制.
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