延迟估计的视觉工作记忆模型不能一般化到全报告任务.
Benjamin Cuthbert1,2, Dominic Standage1,3,4, Martin Paré3,5,6,7
1Centre for Neuroscience Studies, Queen's University, Kingston, ON, Canada.
Journal of vision
|July 26, 2024
概括
工作记忆研究表明,人们根据颜色相似性将回忆中的物品分组,而不是独立地分组. 这挑战了现有的模型,表明任务结构会影响视觉工作记忆的原则.
科学领域:
- 认知心理学 认知心理学
- 神经科学是一个神经科学.
- 人类的感知 人类的感知
背景情况:
- 整体报告工作记忆任务允许进行详细的单试分析.
- 现有的模型通常假设试验中的刺激的独立编码和报告.
- 这种假设可能不准确地反映了整个报告任务中信息的处理方式.
研究的目的:
- 调查整个报告工作记忆任务中的编码和报告策略.
- 测试独立刺激处理与经验数据的假设.
- 评估现有的工作内存编码模型对整体报告范式的概括性.
主要方法:
- 进行了两个独立的全报告实验,使用不同的响应方法 (连续轮,离散按).
- 分析了参与者报告的颜色和方向刺激,以确定模式.
- 将经验数据与来自独立和等级贝叶斯集合编码模型的预测进行比较.
主要成果:
- 参与者经常根据相似性分组颜色报告,这与独立性假设相矛盾.
- 这种分组行为对于颜色是一致的,但不是方向刺激.
- 无论是独立的还是等级的集体编码模型都没有准确地预测整个报告数据中观察到的偏差.
结论:
- 对于全报告工作记忆任务,独立刺激处理的假设是不成立的.
- 为单个报告任务开发的现有编码模型无法将其推广到整个报告范式.
- 任务结构显著影响编码策略,在研究视觉工作记忆时必须考虑.
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