Relating the Past with the Present: Information Integration and Segregation during Ongoing Narrative Processing.

Relating the Past with the Present: Information Integration and Segregation during Ongoing Narrative Processing.
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DOI:
10.1162/jocn_a_01707
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发表时间:
2021-05-01
影响因子:
3.2
通讯作者:
Hasson, Uri
Hasson, Uri
中科院分区:
医学3区
文献类型:
--
作者:
Chang, Claire H. C.;Lazaridi, Christina;Yeshurun, Yaara;Norman, Kenneth A.;Hasson, Uri

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这项研究研究了大脑如何通过在几分钟内整合新信息同时隔离不相关的输入来动态更新事件表征。一位专业作家定制了一个具有两个独立故事情节的叙事,交织着长达一分钟的片段(ABAB)。在最后 (C) 部分中,两个故事情节中的角色相遇并揭示了他们共同的历史。 C 部分的目的是在 A/B 的叙事主题重复出现时诱导对过去事件的自发回忆,并为它们提供新的线索。我们的功能磁共振成像结果显示了故事情节特定的神经模式,这些模式在故事情节转换期间恢复(即变得更加活跃)。这种效应沿着处理时间尺度层次结构增加,在默认模式网络中达到峰值。类似地,在 C 部分中发现了主题的神经恢复。此外,表现出更强主题恢复的参与者在整合 A/B 和 C 事件方面表现更好,这证明了记忆重新激活在信息整合中相对于干预不相关事件的作用。
This study examined how the brain dynamically updates event representations by integrating new information over multiple minutes while segregating irrelevant input. A professional writer custom-designed a narrative with two independent storylines, interleaving across minute-long segments (ABAB). In the last (C) part, characters from the two storylines meet and their shared history is revealed. Part C is designed to induce the spontaneous recall of past events, upon the recurrence of narrative motifs from A/B, and to shed new light on them. Our fMRI results showed storyline-specific neural patterns, which were reinstated (i.e., became more active) during storyline transitions. This effect increased along the processing timescale hierarchy, peaking in the default mode network. Similarly, the neural reinstatement of motifs was found during Part C. Furthermore, participants showing stronger motif reinstatement performed better in integrating A/B and C events, demonstrating the role of memory reactivation in information integration over intervening irrelevant events.
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发表时间: 2020-05-20
期刊: NEURON
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发表时间: 2008-01-01
期刊: YEAR IN COGNITIVE NEUROSCIENCE 2008
影响因子: --
作者:
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通讯作者: Schacter, Daniel L.