增加先前但不同时灭绝减弱了人类预测学习中的"灭绝使得获取特定上下文"效应.
Pedro M Ogallar1, Juan M Rosas2, José E Callejas-Aguilera2
1Department of Psychological and Brain Sciences, University of Iowa.
概括
灭绝培训可以使学习特定于环境 (EMACS效应). 当灭绝试验增加并在新学习之前进行时,这种效应会消失,这表明预测性学习中的注意力机制.
科学领域:
- 认知心理学 认知心理学
- 人类的预测性学习
背景情况:
- 灭绝使得获取环境特定 (EMACS) 效应描述了学习如何依赖于它发生的环境.
- 了解减弱EMACS效应的因素对于解释预测性学习中的上下文处理至关重要.
研究的目的:
- 调查EMACS效应是否在与灭绝相关的预测误差减少时减少.
- 检查灭绝时间和持续时间对人类预测学习中的上下文特异性的影响.
主要方法:
- 四个实验使用了一个预测性学习任务,参与者在特定的餐厅环境中将食物线索与胃病联系起来.
- 参与者同时或在获得新的目标标志 (P) 之前,接受了对标志 (E) 的灭绝训练.
- 在两个环境 (A和B) 中测试了提示P的表现,以评估上下文依赖性.
主要成果:
- 同时的灭绝训练导致了取决于上下文的表现 (EMACS效应),无论灭绝试验的数量 (12或24).
- 当灭绝训练 (24次试验) 之前获得目标提示P时,EMACS效应被消除了.
- 这表明,灭绝的时间和持续时间影响了特定环境学习的发展.
结论:
- 这些发现表明,EMACS效应不仅仅取决于预测错误从灭绝消失.
- 在获得之前进行的灭绝,有足够的试验,可以防止特定环境学习的出现.
- 结果提供了对协会学习中上下文处理的注意力解释的见解.
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