探索视觉工作记忆上的回应效应:从双重提示范式的见解
Ruiqiao Guo1, Junbo Wang2, Kai Fu2
1Institute of Brain and Psychological Science, Sichuan Normal University, Chengdu, China.
Frontiers in neuroscience
|January 26, 2024
概括
这项关于视觉工作记忆的研究表明,虽然第二个提示可以提高表现,但它可以提高表现.
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.
背景情况:
- 逆回应模式用于研究视觉工作记忆中的逆回应效益 (RCB) 和逆回应成本 (RCC).
- 之前对RCB的研究,特别是当未煮熟的物品后来被煮熟时,已经产生了不一致的结果.
研究的目的:
- 调查暗示有效性和时间对视觉工作记忆性能的影响.
- 使用脑电图 (EEG) 和逆侧延迟活动指数 (CDA) 检查基础上的记忆更新的神经机制.
主要方法:
- 参与者执行了一个视觉工作记忆任务,使用一个反向提示范式,具有不同的提示类型 (单,双,中性) 和记忆集大小.
- 行为表现被记录下来.
- 收集了EEG数据以测量CDA,这是一个记忆项目状态索引.
主要成果:
- 在单个cue条件下,行为表现最好,其次是双cue,然后是中性cue条件.
- 脑电图数据显示,双cue条件下CDA振幅增加,与第二个cue后的单cue条件相比.
- 在双cue条件下观察到RCB,但比单cue条件下少得多.
结论:
- 在最初的提示之后,个人不会在视觉工作记忆中丢弃未处理的项目;相反,他们保持它们处于被动状态.
- 随后的提示可以重新激活这些被动存储的项目,从而提高性能,尽管效果不如单一的直接提示.
- 这些发现澄清了视觉工作记忆中记忆更新和注意力选择的动态.
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