新颖性对隐喻加工的影响作用--基于神经成像的ALE元分析

The effect of novelty on metaphor processing:A meta-analysis of neuroimaging studies

为了探究新颖性对隐喻加工的影响机制,本研究采用基于神经成像的激活似然性评估法(ALE)对收集到的有关常规隐喻和新颖隐喻加工的20篇文献进行元分析,结果发现:(1)常规隐喻只激活了左半球,而新颖隐喻激活了双侧半球;(2)元分析结果基本支持等级突显假说(GSH),部分支持粗糙编码理论(CSC);(3)右半球对新颖隐喻的加工具有半球优势,显著激活的有右侧额下回和颞上回。颞上回主要负责语义的激活和整合,额下回负责语义的选择。未来的研究应进一步探讨隐喻与顿悟和创造性思维的关系。

To explore the effect of novelty on metaphor processing,a meta-analysis was conducted by employing activation likelihood estimation(ALE),and by referring to 20 neuroimaging studies on conventional and novel metaphors.Results show that conventional metaphors only activate the left hemisphere,while novel metaphors activate the bilateral hemispheres,which basically support the graded salience hypothesis(GSH)and partially support the coarse semantic coding theory(CSC).It also can be found that the right hemisphere has an advantage in the processing of novel metaphors,and the right inferior frontal gyrus and superior temporal gyrus are significantly activated.The superior temporal gyrus is mainly responsible for the semantic activation and integration,while the inferior frontal gyrus is responsible for the selection of semantics.Future research will further explore the relationships between metaphor,insight and creative thinking.