Similar neural networks respond to coherence during comprehension and production of discourse.
Similar neural networks respond to coherence during comprehension and production of discourse.
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DOI：
10.1093/cercor/bhab485
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发表时间：
2022-09-19
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影响因子：
--
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在理解语篇的过程中，听者会利用与整合语义加工相关的默认模式区域来构建语篇内容的情景模型。我们研究了当我们产生和理解话语时，类似的网络是如何参与的。在功能磁共振成像过程中，参与者谈论一系列特定主题，并听取其他主题的讨论。我们测试了激活是如何通过话语的整体连贯性的自然波动来预测的，也就是说，话语符合预期主题的程度。连贯性的神经相关性在口语和听力中是相似的，特别是在默认模式区域。当听到或产生不连贯的话语时，该网络表现出更大的激活，反映了话语不符合预期主题时心理表征的更新。相反，控制语义激活的区域表现出特定的任务效应，与听力过程中的连贯性呈负相关，但在生产过程中不相关。在左下前额叶皮层表现出更大激活的参与者也产生了更连贯的话语，这表明该区域在言语内容的目标导向调节中发挥了特定作用。研究结果表明，在听说过程中，话语表征具有很强的对应性。然而，他们指出，语义控制网络在理解和生产中发挥着不同的作用。
When comprehending discourse, listeners engage default-mode regions associated with integrative semantic processing to construct a situation model of its content. We investigated how similar networks are engaged when we produce, as well as comprehend, discourse. During functional magnetic resonance imaging, participants spoke about a series of specific topics and listened to discourse on other topics. We tested how activation was predicted by natural fluctuations in the global coherence of the discourse, that is, the degree to which utterances conformed to the expected topic. The neural correlates of coherence were similar across speaking and listening, particularly in default-mode regions. This network showed greater activation when less coherent speech was heard or produced, reflecting updating of mental representations when discourse did not conform to the expected topic. In contrast, regions that exert control over semantic activation showed task-specific effects, correlating negatively with coherence during listening but not during production. Participants who showed greater activation in left inferior prefrontal cortex also produced more coherent discourse, suggesting a specific role for this region in goal-directed regulation of speech content. Results suggest strong correspondence of discourse representations during speaking and listening. However, they indicate that the semantic control network plays different roles in comprehension and production.
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影响因子：
5.3
作者：
Awad, Malaka;Warren, Jane E.;Wise, Richard J. S.
通讯作者：
Wise, Richard J. S.
DOI：
10.1093/geronj/48.5.p225
发表时间：
1993-09-01
期刊：
JOURNALS OF GERONTOLOGY
影响因子：
--
作者：
ARBUCKLE, TY;GOLD, DP
通讯作者：
GOLD, DP
DOI：
10.1073/pnas.1112937108
发表时间：
2011-09-27
影响因子：
11.1
作者：
Fedorenko, Evelina;Behr, Michael K.;Kanwisher, Nancy
通讯作者：
Kanwisher, Nancy
影响因子：
9.9
作者：
Ash, S;Moore, P;Grossman, M
通讯作者：
Grossman, M
DOI：
10.1044/1092-4388(2002/099
发表时间：
2002-12-01
影响因子：
2.6
作者：
Coelho, CA
通讯作者：
Coelho, CA