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Alternative TitleThe Role of Sensory-motor System in Action Metaphor Comprehension and the Relevant Cognitive and Neural Mechanisms
Thesis Advisor傅小兰 ; 刘烨
Degree Grantor中国科学院研究生院
Place of Conferral北京
Degree Discipline基础心理学
Keyword动作隐喻 隐喻理解 感觉一运动系统 动作模拟 具身认知


Other Abstract

   Language comprehension is an important domain in psychology. Traditional psycholinguists proposed that language is a symbol system, and the meaning can be expressed by abstract and amodal symbols through grammar organization. Recently, a number of psycholinguistics research found that sensory-motor system engaged in different processing levels in language comprehension, suggesting that meaning is grounded  in  body  activities  and  interaction  with  surroundings.  The  semantic comprehension might require mental simulation and reconstruction of embodied experience. However, previous studies primarily concerned about comprehension of literal meanings, there is no systematic studies  about the cognitive and neural mechanisms of sensory-motor system's engagement in metaphor comprehension. Firstly, the current study explored whether action metaphor comprehension requires the action simulation and thus involves sensory-motor system. Secondly, the current study examined whether the action metaphor comprehension will be influenced by how sentence is presented or by context. Thirdly, the current study aimed to investigate the time course of sensory-motor system's involvement in action metaphor comprehension and the corresponding neural correlates.
    Study 1 used behavioral experiments to investigate whether there is action simulation during action metaphor comprehension in different conditions. Experiment 1 found the action-sentence compatibility effect (ACE) in the condition that verb-object phrases presented together during simple action metaphor comprehension. Experiment 2 found the ACE in the condition that verb presented within short duration alone. Experiment 3 showed that there is no evident ACE in complex action metaphor comprehension.
    Study 2 adopted EEG technique to explore the time course of sensory-motor system's participation in action metaphor comprehension. The mu rhythm was used as the index to reflect the activation of motor system. Experiment 4 found the activation of motor system occurred in verb and object parts and became stronger in object part during simple action metaphor comprehenison. Experiment _5 found that there is no evident activation of motor system during complex action metaphor comprehension. In addition, complex action metaphor induced a stronger theta rhytm than literal sentence in object part, which reflected the semantic violation. However, around 800一1000 ms after object appeared, the late positive latency showed that there was no significant difference between metaphor and literal sentence, which indicated that context can help late elaborate processing during action metaphor comprehension.
    Study 3 adopted fMRI technique to probe the neural basis of acion metaphor processing. Experiment 6 found that action metaphor comprehension activated primary and secondary sensory-motor system and areas involved in action semantic integration. Furthermore, when the meaning of the sentence was negated, the activation of the areas mentioned above was decreased.
    The current paper revealed the cognitive and neural mechanism of sensory-motor system's role in action metaphor comprehension, and proposed that sensory-motor system participated in action metaphor comprehension flexibly and selectively. The results enrich the theory of metaphor comprehension and thus help understand how abstract concepts are formed and learned by metaphors.

Document Type学位论文
Recommended Citation
GB/T 7714
郑玮琦. 感觉一运动系统参与动作隐喻理解的认知神经机制[D]. 北京. 中国科学院研究生院,2018.
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