Neural bases of action abstraction.

Neural bases of action abstraction.
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DOI:
10.1016/j.biopsycho.2017.09.015
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发表时间:
2017-10
影响因子:
2.6
通讯作者:
Chatterjee A
Chatterjee A
中科院分区:
医学3区
文献类型:
--
作者:
Quandt LC;Lee YS;Chatterjee A

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最近关于动作主要是通过运动模拟还是认知语义来处理的争论一直存在。当前的研究调查了抽象动作概念在大脑中的处理方式,与它们呈现的格式无关。 18 名健康成年参与者以动词和示意性动作象形图的形式观察不同的动作(例如,跳水、拳击),同时收集功能磁共振成像 (fMRI)。我们预测,感觉运动和语义大脑区域对于同一动作的不同实例(例如,潜水象形图和单词“潜水”)会表现出相似的神经活动模式。表征相似性分析揭示了后颞区和感觉运动区,其中编码了特定的动作概念,与呈现的格式无关。这些结果揭示了抽象动作概念的神经实例,并证明感觉运动和语义系统都参与处理动作。
There has been recent debate over whether actions are processed primarily by means of motor simulation or cognitive semantics. The current study investigated how abstract action concepts are processed in the brain, independent of the format in which they are presented. Eighteen healthy adult participants viewed different actions (e.g., diving, boxing) in the form of verbs and schematic action pictograms while functional magnetic resonance imaging (fMRI) was collected. We predicted that sensorimotor and semantic brain regions would show similar patterns of neural activity for different instances of the same action (e.g., diving pictogram and the word ‘diving’). A representational similarity analysis revealed posterior temporal and sensorimotor regions where specific action concepts were encoded, independent of the format of presentation. These results reveal the neural instantiations of abstract action concepts, and demonstrate that both sensorimotor and semantic systems are involved in processing actions.
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发表时间: 2009-06
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