在从人类工作记忆内部采样时的神经决策信号
Freek van Ede1,2, Anna C Nobre3,4,5
1Institute for Brain and Behavior Amsterdam, Department of Experimental and Applied Psychology, Vrije Universiteit Amsterdam, 1081 BT, Amsterdam, The Netherlands freek.van.ede@vu.nl kia.nobre@yale.edu.
概括
科学家们发现,基于内部工作记忆的决策涉及逐渐积累的证据,类似于外部感官决策. 这种大脑活动,即中央头顶阳性,与决策时间和复杂性有关.
科学领域:
- 认知神经科学 认知神经科学
- 心理学 心理学 心理学
- 电力生理学 电力生理学
背景情况:
- 决策研究传统上侧重于外部感官信息处理.
- 决策的渐进式证据积累模型已经被理论化为内部工作记忆,但缺乏神经支持.
研究的目的:
- 从工作记忆中研究决策的基础的神经机制.
- 为了确定内部信息采样是否遵循逐步证据积累过程.
主要方法:
- 在人类志愿者身上使用了头皮脑电图 (EEG).
- 参与者根据工作记忆中内部维护的视觉信息做出决定.
主要成果:
- 在内部工作记忆采样过程中观察到一个中心状阳性,表明逐渐积累证据.
- 这种EEG信号与决策时间相关,并且当参与者在多个记忆项之间做出决定时增加.
结论:
- 神经证据支持基于工作记忆的决策的逐步证据积累框架.
- 记忆引导行为的变化可能源于内部心理内容采样过程.
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