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The Brain connectome for Chinese Reading

Neuroscience Bulletin 2022年第9期38卷 1097-1113页

作者： Wanwan Guo Shujie Geng Miao Cao Jianfeng Feng Institute of Science and Technology for brain-Inspired Intelligence Fudan UniversityShanghai200433China Key Laboratory of Computational Neuroscience and brain-Inspired Intelligence(Ministry of Education) Fudan UniversityShanghai200433China

Chinese,as a logographic language,fundamentally differs from alphabetic languages like English.Previous neuroimaging studies have mainly focused on alphabetic languages,while the exploration of Chinese reading is still an emerging and fast-growing research field.Recently,a growing number of neuroimaging studies have explored the neural circuit of Chinese reading.Here,we summarize previous research on Chinese reading from a connectomic perspective.Converging evidence indicates that the left middle frontal gyrus is a specialized hub region that connects the ventral with dorsal pathways for Chinese reading.Notably,the orthography-to-phonology and orthography-to-semantics mapping,mainly processed in the ventral pathway,are more specific during Chinese reading.Besides,in addition to the left-lateralized language-related regions,reading pathways in the right hemisphere also play an important role in Chinese reading.Throughout,we comprehensively review prior findings and emphasize several challenging issues to be explored in future work.

关键词： Brain connectome Chinese reading Word recognition Reading comprehension Structural connectivity Functional connectivity

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Whole-brain Optical Imaging:A Powerful Tool for Precise brain Mapping at the Mesoscopic Level

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Neuroscience Bulletin 2023年第12期39卷 1840-1858页

作者： Tao Jiang Hui Gong Jing Yuan Huazhong University of Science and Technology-Suzhou Institute for brainsmatics Jiangsu Industrial Technology Research InstituteSuzhou215123China Wuhan National Laboratory for Optoelectronics Huazhong University of Science and TechnologyWuhan430074China

The mammalian brain is a highly complex network that consists of millions to billions of densely-interconnected neurons.Precise dissection of neural circuits at the mesoscopic level can provide important structural information for understanding the brain.Optical approaches can achieve submicron lateral resolution and achieve“optical sectioning”by a variety of means,which has the natural advantage of allowing the observation of neural circuits at the mesoscopic level.Automated whole-brain optical imaging methods based on tissue clearing or histological sectioning surpass the limitation of optical imaging depth in biological tissues and can provide delicate structural information in a large volume of tissues.Combined with various fluorescent labeling techniques,whole-brain optical imaging methods have shown great potential in the brain-wide quantitative profiling of cells,circuits,and blood vessels.In this review,we summarize the principles and implementations of various whole-brain optical imaging methods and provide some concepts regarding their future development.

关键词： Whole-brain optical imaging Optical sectioning Micrometer resolution Brain connectome Neural circuits Neuron

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