准备行动! 准备行动! 当大脑学习时,却没有追随记忆偏差的行动
Manda Fischer1, Morris Moscovitch1, Keisuke Fukuda2
1Department of Psychology, University of Toronto, Toronto, Canada; Department of Psychology, Rotman Research Institute at Baycrest Hospital, Toronto, Canada.
Neuropsychologia
|August 21, 2023
概括
记忆检索可以让我们为行动做好准备,但学习期间的注意力会影响这种效应. 显式记忆和隐式记忆都有助于行动准备,隐式记忆与响应准备特别相关.
科学领域:
- 认知神经科学 认知神经科学
- 记忆的神经科学 记忆的神经科学
- 人类行动与认知
背景情况:
- 长期记忆在行动准备中的作用是复杂的,具有不同程度的益处.
- 从行为表达中分离记忆检索对于理解记忆对行动的影响至关重要.
研究的目的:
- 通过脑电图 (EEG) 研究记忆检索和响应处理如何相互作用.
- 确定学习时注意力对记忆引导行动和信号检测的影响.
- 在行动准备中区分显式和隐式记忆的作用.
主要方法:
- 高密度脑电图 (EEG) 用于记录学习和回忆过程中的大脑活动.
- 偶然的关联性学习范式将声音与横向的音调配对.
- 在学习过程中,对声音或音调的注意力进行实验性操纵.
- 新的检测任务将线索检索与响应处理分开.
主要成果:
- 在这两项实验中都观察到记忆检索的神经证据.
- 信号检测的行为促进仅发生在注意力被指向音色时 (实验2),与显式记忆相关联.
- 隐式神经记忆用于与响应准备相关联的音调位置,而不是执行.
结论:
- 在学习期间的注意力显著影响了记忆偏差的行为.
- 记忆通过明确和隐含的关联记忆路径准备行动.
- 隐含的关联记忆特别触发响应准备,影响后续行动.
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