Shared understanding of narratives is correlated with shared neural responses.
Shared understanding of narratives is correlated with shared neural responses.
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DOI：
10.1016/j.neuroimage.2018.09.010
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发表时间：
2019-01-01
期刊：
影响因子：
5.7
通讯作者：
Hasson U
中科院分区：
文献类型：
--
作者：
Nguyen M;Vanderwal T;Hasson U
人类有一种惊人的能力，即使是从最稀疏和最抽象的叙述形式中推断出意义。与此同时，叙述形式的灵活性与其解释中固有的模糊性相匹配。在对抽象和模棱两可的叙述进行解释时，大脑是如何表现出微妙的、特殊的差异的？在这项fMRI研究中，受试者要么观看一部7分钟的动画，通过几何形状的运动描绘一个复杂的叙事，要么听动画的社会故事的叙述。使用跨学科的表征相似性分析，比较解释相似性和神经相似性的科目，我们发现，更相似的两个人的解释的抽象形状动画，更相似的是他们的神经反应的默认模式网络（DMN）和额顶叶网络的区域。此外，这些共享的反应是模态不变的：形状电影和口头解释的电影引起共享的反应，在语言领域和一个子集的DMN时，受试者共享的解释。总之，这些结果表明，网络的高层次的地区，不仅是敏感的微妙的个人差异，在自然条件下的叙事解释，但也有弹性的大差异的叙事方式。
Humans have a striking ability to infer meaning from even the sparsest and most abstract forms of narratives. At the same time, flexibility in the form of a narrative is matched by inherent ambiguity in its interpretation. How does the brain represent subtle, idiosyncratic differences in the interpretation of abstract and ambiguous narratives? In this fMRI study, subjects were scanned either watching a novel 7-min animation depicting a complex narrative through the movement of geometric shapes, or listening to a narration of the animation’s social story. Using an intersubject representational similarity analysis that compared interpretation similarity and neural similarity across subjects, we found that the more similar two people’s interpretations of the abstract shapes animation were, the more similar were their neural responses in regions of the default mode network (DMN) and fronto-parietal network. Moreover, these shared responses were modality invariant: the shapes movie and the verbal interpretation of the movie elicited shared responses in linguistic areas and a subset of the DMN when subjects shared interpretations. Together, these results suggest a network of highlevel regions that are not only sensitive to subtle individual differences in narrative interpretation during naturalistic conditions, but also resilient to large differences in the modality of the narrative.
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