【作者】 李珊珊； 于庆宝； 冯士刚； 鹿麒麟； 唐一源；

【Author】 LI Shan-shan, YU Qing-bao, FENG Shi-gang, LU Qi-lin, TANG Yi-yuan ( Institute of Neuroinformatics, Dalian University of Technology, Dalian 116024, China; Laboratory of Brain and Cognitive Science, Institute of Biophysics, the Chinese Academy of Science, Beijing 100101, China)

【机构】 大连理工大学神经信息学研究所；

【摘要】 本文运用功能磁共振成像技术(fMRI)对视觉信息在大脑皮层中等级处理的双脑协同性问题进行了研究。发现对于初级视皮层(17区),其左右半球相关性不大;对于次级视皮层(18区),左右半球间呈现了较大的负相关:对于高级视中枢(19区),左右半球有很强的正相关。由此体现了在视觉系统中,对于不同等级的视皮层,其左右半球间的连通机制以及协同性有着显著不同:在视觉信息处理中高层次感知区域两侧半球具有高度协同性。这个结果有助于我们理解人类大脑怎样把来自左右大脑的双侧信号整合为统一感知的问题。更多还原

【Abstract】 This article concerns the cooperativity of visual information hierarchical processing in the human brain by using Functional magnetic resonance imaging (fMRI). The result indicates that right and left cerebrum have little relativity in the primary occipital lobe (BA17), and strong positive relativity in the secondary occipital lobe (BA19). The authors suggest that there are different communicated mechanism and cooperativity in the different occipital lobe. Especially, there is very strong relativity in the advanced sensor cortex in processing visual information. The result will help to understand how human brain can integrate the signal from both sides of the cortex into uniform perception.更多还原