对后决策感知表征的元认知评估
Tarryn Balsdon1,2,3, Valentin Wyart4,5,6, Pascal Mamassian1,7,8
1Laboratoire des Systèmes Perceptifs (CNRS UMR 8248), DEC, ENS, PSL University, Paris, France.
Journal of vision
|April 1, 2024
概括
感知信心依赖于视觉证据,但我们如何访问这些证据取决于任务级别. 高水平的视觉任务比低水平的任务保持信心更长时间,特别是当视觉刺激降低时.
科学领域:
- 认知神经科学 认知神经科学
- 视觉感知 视觉感知 视觉感知
- 超认知 (Metacognition) 是一种表认知 (metacognition) 的方法.
背景情况:
- 感知自信与对决策证据的元认知评估有关.
- 视觉皮层的层次组织可能会影响对感知信息的元认知访问.
研究的目的:
- 调查是否对感知证据的元认知访问受到视觉皮层层次的约束.
- 检查任务级别 (高级别与低级别) 如何影响信心判断.
- 确定决策后处理时间和视觉掩盖对信心的影响.
主要方法:
- 人类观察者对相同的刺激进行了高水平和低水平的视觉任务.
- 改变了刺激呈现和响应提示之间的时间.
- 引入了反向掩盖来降低视觉刺激.
主要成果:
- 信任判断受到任务级别的影响 (高级别与低级别).
- 低水平的信心随着决策响应时间的增加和向后掩盖而下降.
- 高水平的信心是强大的向后掩盖,并提高了额外的时间.
结论:
- 对感知证据的元认知访问是由视觉处理的层次层级调节的.
- 信心依赖于持续的,决策后的内部代表,而更高层次的代表随着时间的推移变得更加稳定.
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