In search of different categories of abstract concepts: a fMRI adaptation study.

In search of different categories of abstract concepts: a fMRI adaptation study.
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寻找不同类别的抽象概念:功能磁共振成像适应性研究。

DOI:
10.1038/s41598-021-02013-8
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发表时间:
2021-11-19
期刊:
影响因子:
4.6
通讯作者:
Della Rosa PA
Della Rosa PA
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Conca F;Catricalà E;Canini M;Petrini A;Vigliocco G;Cappa SF;Della Rosa PA

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具体的概念知识是由一个分布式的神经网络,代表不同的语义特征,根据神经解剖的感觉和运动系统的支持。这个框架是否以及如何适用于抽象知识目前还存在争议。在这里,我们研究了不同抽象类别的特定大脑相关性。经过系统的先验选择的大脑区域参与语义认知,即负责,分别,语义表征和认知控制,我们使用了一个功能性磁共振成像适应范式与被动阅读任务,以调节神经反应抽象(情绪,认知,态度,人类行为)和具体(生物实体,文物)类别。左前颞叶的不同部分对抽象和具体的概念有选择性地做出反应。情绪和态度适应左颞中回,而具体的项目适应左梭状回。我们的研究结果表明,类似于具体的概念,某些类别的抽象知识有特定的大脑相关的普遍的语义维度参与其表示。
Concrete conceptual knowledge is supported by a distributed neural network representing different semantic features according to the neuroanatomy of sensory and motor systems. If and how this framework applies to abstract knowledge is currently debated. Here we investigated the specific brain correlates of different abstract categories. After a systematic a priori selection of brain regions involved in semantic cognition, i.e. responsible of, respectively, semantic representations and cognitive control, we used a fMRI-adaptation paradigm with a passive reading task, in order to modulate the neural response to abstract (emotions, cognitions, attitudes, human actions) and concrete (biological entities, artefacts) categories. Different portions of the left anterior temporal lobe responded selectively to abstract and concrete concepts. Emotions and attitudes adapted the left middle temporal gyrus, whereas concrete items adapted the left fusiform gyrus. Our results suggest that, similarly to concrete concepts, some categories of abstract knowledge have specific brain correlates corresponding to the prevalent semantic dimensions involved in their representation.
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