自传精神图像特征的神经解码与一般语义模型
Andrew J Anderson1,2,3, Leonardo Fernandino4,5, William L Gross4,5,6,7
1Department of Neurology, Medical College of Wisconsin, Milwaukee, WI, USA. andanderson@mcw.edu.
Nature communications
|December 12, 2025
概括
语言理解和自传的想象力共享大脑区域,特别是中线皮质区域. 这表明,句子含义的神经编码与自我生成的心理图像重叠.
科学领域:
- 认知神经科学 认知神经科学
- 神经成像是一种神经成像.
背景情况:
- 传统上,人们认为语言理解和自传的想象力涉及不同的神经认知系统.
- 语义系统 (侧面叶,叶,额叶) 和自传/情节系统 (中线皮质区域,海马) 被认为是不同的.
研究的目的:
- 调查语言理解在多大程度上与自传经验和想象力相同的大脑区域.
- 识别句子理解和自我生成的自传心理图像之间的共享神经表示.
主要方法:
- 功能磁共振成像 (fMRI) 用于50名参与者想象独特的体验.
- 一个预先训练的语义解码器,从fMRI数据中得出的句子阅读,被应用来重建自我报告的体验特征从心理图像fMRI数据.
- 零射击解码在参与者和认知任务中进行.
主要成果:
- 在句子理解和自传心理图像过程中,在中线和侧面皮质区域都发现了共享表示的证据.
- 这些共同的代表性在中线地区最为突出.
- 用语义解码器从fMRI数据中成功解码了参与者特定的自传特征评分.
结论:
- 句子意义的神经编码与自我生成的自传心理图像共享皮质区域和表示代码.
- 这挑战了关于语言和自传记忆分离的神经认知系统的传统观点.
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