Neural unscrambling of temporal information during a nonlinear narrative.
Neural unscrambling of temporal information during a nonlinear narrative.
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DOI：
10.1093/cercor/bhad015
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发表时间：
2023-05-24
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影响因子：
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虽然我们必须按时间顺序体验我们的生活，但讲故事的人经常操纵他们讲述事件的顺序。大脑如何处理时间信息，同时编码非线性叙事仍然不清楚。在这里，我们使用功能性磁共振成像在看电影，以调查哪些大脑区域是敏感的叙事时间的信息，并测试跨叙事的时间背景的表示是否更受事件的顺序或其潜在的时间顺序的影响。结果表明，内侧顶叶区域对时间上的线索跳跃敏感，超过上下文中的其他变化（即，位置）。此外，当处理非时序叙述性信息时，楔前叶和后扣带回参与动态时间解读，以时序方式表征信息。具体来说，在时间顺序上更接近的日子被更相似地表示，而不管它们何时在电影中呈现，并且这种表示在参与者之间是一致的。进一步的分析揭示了一个强烈的空间特征，与更高的震级跳跃有关。这些研究结果是一致的内侧顶叶区域作为中央维持和更新的叙事情境模型的理论，并建议编码叙事事件时的时间顺序信息的优先级。
Although we must experience our lives chronologically, storytellers often manipulate the order in which they relay events. How the brain processes temporal information while encoding a nonlinear narrative remains unclear. Here, we use functional magnetic resonance imaging during movie watching to investigate which brain regions are sensitive to information about time in a narrative and test whether the representation of temporal context across a narrative is more influenced by the order in which events are presented or their underlying chronological sequence. Results indicate that medial parietal regions are sensitive to cued jumps through time over and above other changes in context (i.e., location). Moreover, when processing non-chronological narrative information, the precuneus and posterior cingulate engage in on-the-fly temporal unscrambling to represent information chronologically. Specifically, days that are closer together in chronological time are represented more similarly regardless of when they are presented in the movie, and this representation is consistent across participants. Additional analyses reveal a strong spatial signature associated with higher magnitude jumps through time. These findings are consistent with prior theorizing on medial parietal regions as central to maintaining and updating narrative situation models, and suggest the priority of chronological information when encoding narrative events.
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影响因子：
2.1
作者：
Brownstein, Aaron L.;Read, Stephen J.
通讯作者：
Read, Stephen J.
parahampocampal皮层在认知中的作用。
影响因子：
19.9
作者：
Aminoff, Elissa M;Kveraga, Kestutis;Bar, Moshe
通讯作者：
Bar, Moshe
影响因子：
16.6
作者：
通讯作者：
--
影响因子：
4.3
作者：
Brown, Gordon D. A.;Vousden, Janet I.;McCormack, Teresa
通讯作者：
McCormack, Teresa
影响因子：
5.7
作者：
Kauttonen, Janne;Hlushchuk, Yevhen;Tikka, Pia
通讯作者：
Tikka, Pia