工作记忆过程和内在动机:一项EEG研究
Natalia Zhozhikashvili1, Maria Protopova2, Tatiana Shkurenko3
1Faculty of Social Sciences, HSE University, Moscow, Russia; Institute of Medical Psychology and Behavioural Neurobiology, University of Tübingen, Tübingen, Germany.
概括
动机影响工作记忆 (WM) 过程,如编码和保留,特别是在高任务难度下. 弹性和主观动机在这些WM阶段影响大脑活动 (EEG).
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
背景情况:
- 工作记忆 (WM) 涉及编码,保留和检索.
- 动机对特定WM流程的影响仍然不清楚.
- 任务难度可能会调节动机对WM的影响.
研究的目的:
- 调查动机如何影响不同的WM过程 (编码,保留,检索).
- 检查任务困难对动机WM影响的调节作用.
- 在不同的动机和难度下分析脑电图 (EEG) 相关的WM.
主要方法:
- 使用Sternberg任务来评估WM性能和EEG.
- 招募了48名参与者 (32名女性,平均年龄21岁).
- 测量了动机水平,人格特征 (弹性) 和任务难度.
主要成果:
- 增加任务难度,降低准确性和增加响应时间.
- 动机分数和准确性之间没有发现直接联系.
- 脑电图揭示了动机影响的WM:弹性与编码/检索期间的α振荡相关;主观动机与保留期间的正面theta相关.
- 这些与动机相关的EEG变化在高难度下被放大.
结论:
- 动机特别影响WM编码,保留和检索,正如EEG变化所证明的那样.
- 任务难度显著调节了动机对WM的影响.
- 调查结果强调了在WM研究中考虑个人动机和任务需求的差异的重要性.
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