Effective connectivity of dorsal and ventral visual pathways in chunk decomposition

作     者：WU QiYuan WU LiLi LUO Jing 

作者机构：Graduate University of Chinese Academy of SciencesBeijing 100049China Institute of PsychologyChinese Academy of SciencesBeijing 100101China 

出 版 物：《Science China(Life Sciences)》 (中国科学(生命科学英文版))

年 卷 期：2010年第53卷第12期

页      面：1474-1482页

核心收录：

学科分类：0710[理学-生物学] 07[理学] 071003[理学-生理学] 

基　　金：supported by the Knowledge Innovation Program of Chinese Academy of Sciences (Grant No. KSCX2-YW-R-28) the National Natural Science Foundation of China (Grant No. 30770708) the National Hi-Tech Research and Development Program of China (Grant No. 2008AA022604) 

主　　题：modulatory connectivity dynamic causal modeling chunk familiarity perceptual tightness 

摘      要：Chunk decomposition is defined as a cognitive process which breaks up familiar items into several parts to reorganize them in an alternative *** present study investigated the effective connectivity of visual streams in chunk decomposition through dynamic causal modeling(DCM).The results revealed that chunk familiarity and perceptual tightness made a combined contribution to highlight not only the what and the where streams,but also the effective connectivity from the left inferior temporal gyrus to the left superior parietal lobule.