Reactivation of Previous Experiences in a Working Memory Task
Reactivation of Previous Experiences in a Working Memory Task
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DOI：
10.1177/0956797619830398
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发表时间：
2019-04-01
影响因子：
8.2
通讯作者：
Luck, Steven J.
中科院分区：
文献类型：
--
作者：
Bae, Gi-Yeul;Luck, Steven J.
最近的经验影响了新信息的处理，即使这些经验与当前任务无关。这是否反映了被动维护的先前经验的表征的间接影响，或者当新事件发生时该表征被重新激活？为了回答这个问题，我们试图在工作记忆任务中从当前试验的脑电中解码前一次试验中刺激的方向。行为数据证实，前一次试验的刺激定向影响了当前试验中报告的定向，即使前一次试验的定向现在与任务无关。在两个独立的实验中，我们发现前一试定向可以从当前试的脑电中被解码，这表明当前试刺激重新激活或促进了前一试定向的表征。这些结果表明，最近经历对行为的影响在一定程度上是由这些经历的重新激活驱动的，而不仅仅是被动记忆痕迹的间接影响。
Recent experiences influence the processing of new information even when those experiences are irrelevant to the current task. Does this reflect the indirect effects of a passively maintained representation of the previous experience, or is this representation reactivated when a new event occurs? To answer this question, we attempted to decode the orientation of the stimulus on the previous trial from the electroencephalogram on the current trial in a working memory task. Behavioral data confirmed that the previous-trial stimulus orientation influenced the reported orientation on the current trial, even though the previous-trial orientation was now task irrelevant. In two independent experiments, we found that the previous-trial orientation could be decoded from the current-trial electroencephalogram, indicating that the current-trial stimulus reactivated or boosted the representation of the previous-trial orientation. These results suggest that the effects of recent experiences on behavior are driven, in part, by a reactivation of those experiences and not solely by the indirect effects of passive memory traces.