新颖语义联结形成的右半球优势效应

发布时间：2019-06-10 20:44

【摘要】：新颖语义联结形成是创造性思维的重要加工过程。采用谜题型歇后语为材料,直接操控语义联结的新颖性,通过两个实验考察汉语新颖语义联结形成的神经机制。实验1采用fMRI记录谜题型歇后语阅读理解过程的神经活动,结果显示相对于寻常语义关联条件,新颖语义关联条件更强地激活了右侧颞上回,该脑区可能与新颖语义信息的激活有关。实验2采用ERP技术在语义关联性判断任务中考察新颖语义联结形成神经加工的时空特征,结果显示相对于寻常语义关联条件,新颖语义关联条件在右侧颞区和右侧额区诱发了更正的晚期正成分,可能分别反映了新颖语义信息的激活以及选择与整合。研究结果支持了新颖语义联结形成的右半球加工优势效应。
[Abstract]:The formation of novel semantic connection is an important processing process of creative thinking. Using riddle hysteria as material to directly manipulate the novelty of semantic connection, the neural mechanism of Chinese novel semantic connection is investigated through two experiments. In experiment 1, fMRI was used to record the neural activity of the reading comprehension process of the riddle type of rest. The results showed that the novel semantic association condition activated the right superior temporal gyrus more strongly than the normal semantic association condition. The brain region may be related to the activation of novel semantic information. In experiment 2, ERP technique was used to investigate the temporal and spatial characteristics of neural processing formed by novel semantic connections in the task of semantic relevance judgment. The results show that compared with the ordinary semantic association conditions, The novel semantic association conditions induce corrected late positive components in the right temporal region and the right forehead region, which may reflect the activation, selection and integration of novel semantic information, respectively. The results support the processing dominance effect of the right hemisphere formed by the novel semantic connection.
【作者单位】：青少年网络心理与行为教育重点实验室华中师范大学心理学院;心理学国家级实验教学示范中心华中师范大学心理学院;长沙师范学院学前教育系;
【基金】：国家自然科学基金项目(31400875和3147100) 教育部人文社会科学规划项目(14YJA190014) 认知神经科学与学习国家重点实验室开放课题(CNLZD1604)
【分类号】：B842

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