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工作记忆的吸引力动力学解释了在视觉估计中的刺激特异性和决策一致性偏差的同时演变

Hyunwoo Gu¹, Joonwon Lee², Sungje Kim²

¹Department of Brain and Cognitive Sciences, Seoul National University, 1 Gwanak-ro, Seoul 08826, Republic of Korea; Department of Psychology, Stanford University, Stanford, CA 94305, USA; Wu Tsai Neurosciences Institute, Stanford University, Stanford, CA 94305, USA.

|July 30, 2025

概括

我们的大脑使用工作记忆 (WM) 来存储感官信息,但估计是有偏见的. 这项研究揭示了WM中的漂移动态如何导致刺激特异和决策一致的偏见,提供了统一的机制性解释.

科学领域:

认知神经科学认知神经科学
计算神经科学是一种神经科学.

背景情况:

感官信息往往是短暂的,因此需要在工作记忆 (WM) 中维护它来完成认知任务.
在依赖工作记忆的任务中,人类的感知表现出系统的偏见,包括刺激特定的和决策一致的偏见.

研究的目的:

阐明在工作记忆中的刺激特异性和决策一致性偏差背后的神经机制.
通过动态记忆过程,为这些偏见的共同演变提出统一的解释.

主要方法:

通过行为实验和神经成像 (fMRI) 研究了方向估计任务.
开发和分析任务优化的循环神经网络 (RNN),以建模神经动态.
采用计算建模来将漂移-扩散动态与观察到的偏差联系起来.

主要成果:

确定了朝着离散吸引者的漂移动态,作为刺激特异性和决策一致性偏差的共同来源.
证明决策动态地引导记忆状态,影响偏差大小.
神经成像和行为数据证实了吸引力动态模型预测的偏差的共同进化.

结论:

工作记忆的表示不是静态的,而是向吸引者表现出动态的漂移,解释了常见的感知偏差.
决策过程积极调节这些记忆动态,导致决策一致的偏见.
循环神经网络模型为如何从连续的感官WM中产生分类决策提供了可信的神经基质,同时结合了这些偏见.

关键词:

吸引力动态吸引力动态认知偏见是一种认知偏见.在决策过程中做出决定.功能磁力共振成像 (fMRI) 是一种经常性的神经网络.视觉感知视觉感知视觉感知工作记忆工作记忆

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