从长期记忆中检索并不能绕过工作记忆
Michael K P Mugno1, Timothy J Vickery2
1Department of Psychological and Brain Sciences, University of Delaware, Newark, DE, USA. mmugno@udel.edu.
Attention, perception & psychophysics
|August 22, 2025
概括
从长期内存 (LTM) 获取信息不会绕过工作内存 (WM). 这项研究发现,LTM检索损害了WM的性能,当WM接近容量时,它本身也会受到损害.
科学领域:
- 认知心理学
- 神经科学
背景情况:
- 从长期内存 (LTM) 获取信息受工作内存 (WM) 的容量限制.
- 之前的研究表明LTM检索可能会绕过WM,即使在容量.
研究的目的:
- 调查LTM检索是否可以绕过WM.
- 检查LTM检索对WM内容和检索信息准确性的影响.
主要方法:
- 调整了一个范式,包括连续报告WM内容和LTM检索.
- 在LTM检索任务中进行了不同WM负载 (两个,四个或没有项目) 的实验.
主要成果:
- 当一个LTM项目被检索时,WM报告的准确性下降.
- 与较低负载相比,当WM在容量 (四个项目) 时,LTM报告的准确性较低.
- 在不同WM负载的LTM检索过程中,WM内容的保真度降低.
结论:
- LTM 检索不会绕过 WM.
- WM 容量限制与 LTM 检索过程相互作用.
- 获取的LTM信息和维护的WM信息在有限的WM资源中竞争.
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