这些词逐渐揭示了一切:在叙事理解过程中,神经对词汇语义内容的神经反应
Melissa Thye1, Paul Hoffman1, Daniel Mirman1
1School of Philosophy, Psychology & Language Sciences, University of Edinburgh, Edinburgh EH8 9JZ, United Kingdom.
NeuroImage
|May 31, 2023
概括
参与叙事理解的脑网络比以前认为的要复杂得多. 特定的词语特征,如社会影响,会影响大脑激活,特别是在前叶 (ATL).
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 语言学的语言学.
背景情况:
- 叙事理解涉及快速的词语含义访问和与展开的场景的整合.
- 广泛的大脑网络支持理解,但具体的语义维度如何参与语义控制和社会认知等系统仍然不清楚.
研究的目的:
- 调查叙事中的词汇和语义词性如何与大脑激活模式发生共变.
- 探索语义维度的神经相关性,例如在听有声书时的模糊性,情感和社交性.
主要方法:
- 利用48名参与者的fMRI数据,听"小王子"录音本.
- 量化叙事转录词语的词汇和语义内容,包括单词长度,语义灵活性,情感强度和社会影响.
- 将这些词分数和数量变量与大脑激活相关联.
主要成果:
- 大型大脑网络,而不仅仅是孤立的区域,显示与叙事内容的共同变异.
- 增加的语义内容激发了腹前叶 (ATL),这是一个已知的语义枢纽.
- 语义内容的减少激活了极和下叶,暗示了语义整合.
- 低语义灵活性参与了语义控制网络.
- 增加社会影响与ATL的激活相关,支持其在社会知识中的作用.
结论:
- 当前的语言处理模型可能低估了支持叙事理解的神经系统.
- 特定的语义维度,如社交性,直接影响语义系统内的大脑激活.
- 大脑网络在复杂的语言处理过程中动态地适应不同的词汇和语义特征.
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