PSYCH OpenIR  > 中国科学院心理研究所回溯数据库(1956-2010)
Alternative TitleThe effective connectivity of visual pathways in chunk decomposition of Chinese characters
Thesis Advisor罗劲
Degree Grantor中国科学院心理研究所
Place of Conferral心理研究所
KeywordDCM 汉字 熟悉性 空间结构紧密性 视觉通路
Other AbstractThe present study used Dynamical Causal Modeling (DCM) to reveal the influence of difficult to decompose Chinese characters on the effective connectivity of “where” and “what” visual stream。 Chunk decomposition is to decompose the familiar items to their components and then to make up new items with the decomposed components。 Some previous studies with eye movements and brain image had revealed that the chunk decomposition was involved visual-spatial information process, and suggested that “what” and “where” visual streams contributed to the course of chunk decomposition。 However, how they worked to complete the chunk decomposition task is still unknown。 The present study has two factors, familiarity and tightness of the spatial structures, each with 2 levels: real words vs. pseudowords and tight chunks vs. loose chunks。 The results indicates that in the loose conditions, familiarity increases the effective connectivity of “where ” stream, while in the pseudowords conditions, tightness of the spatial structures increases the effective connectivity of both “where” and “what” streams, and familiarity and tightness combined to increase not only both the “what” and “where” streams, but also the effective connectivity from the inferior temporal gyrus to the superior parietal lobule.
Document Type学位论文
Recommended Citation
GB/T 7714
吴齐元. 视觉通路在汉字组块破解过程中的有效连接[D]. 心理研究所. 中国科学院心理研究所,2009.
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