Event segmentation reveals working memory forgetting rate.
Event segmentation reveals working memory forgetting rate.
复制标题
事件分割揭示了工作记忆遗忘率。
DOI：
10.1016/j.isci.2022.103902
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发表时间：
2022-03-18
期刊：
影响因子：
5.8
通讯作者：
Collins AGE
中科院分区：
文献类型：
--
作者：
Jafarpour A;Buffalo EA;Knight RT;Collins AGE
我们遇到的世界是一个连续的流，毫不费力地将事件序列分割成情节。这种事件分割过程利用工作记忆（WM）来跟踪事件流，并影响后续记忆的准确性。WM受限于信息量（即WM容量）和信息保留的时间（即遗忘率）。在这项研究中，我们估计了参与者在动态情境下的记忆能力和遗忘率，并评估了它们与事件分割的关系。不同任务之间的u型关系表明，与平均水平相比，对电影进行更精细或更粗略分割的个体，其WM遗忘率更快。一项单独的评估长期记忆检索的任务显示，与精细分割者相比，粗分割者对事件的时间顺序有更好的识别。结果表明，事件分割采用可分离记忆策略，并与信息在WM中的保留时间有关。事件分割粒度在个体间存在差异，与WM遗忘率呈u型关系，时间顺序记忆正确率随事件分割的增加而降低，回忆事件的数量随事件分割的增加而增加；认知神经科学;神经科学
We encounter the world as a continuous flow and effortlessly segment sequences of events into episodes. This process of event segmentation engages working memory (WM) for tracking the flow of events and impacts subsequent memory accuracy. WM is limited in how much information (i.e., WM capacity) and for how long the information is retained (i.e., forgetting rate). In this study, across multiple tasks, we estimated participants’ WM capacity and forgetting rate in a dynamic context and evaluated their relationship to event segmentation. A U-shaped relationship across tasks shows that individuals who segmented the movie more finely or coarsely than the average have a faster WM forgetting rate. A separate task assessing long-term memory retrieval revealed that the coarse-segmenters have better recognition of temporal order of events compared to the fine-segmenters. These findings show that event segmentation employs dissociable memory strategies and correlates with how long information is retained in WM The event segmentation grain is variable across individuals The event segmentation grain has a U-shaped relationship with the WM forgetting rate The temporal order memory accuracy decreases with the increasing event segmentation The number of recalled events increases with the increasing event segmentation Behavioral neuroscience; cognitive neuroscience; Neuroscience
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影响因子：
3.7
作者：
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通讯作者：
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影响因子：
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DOI：
10.1073/pnas.1720963115
发表时间：
2018-03-06
影响因子：
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影响因子：
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作者：
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作者：
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