The Research Of Complex Brain Functional Network

Neuroscience is an intensively discussed topic in the field of life science. It is of great importance to apply the results of complex research into neuroscience and use systematic views to analyze the brain activation. The present study was designed to apply the theory of complex network into neuroscience and construct a functional brain network based on the data from fMRI.A brief overview of the main work and discussion is introduced:1. The study began with the literature review of the newest research results of neuroscience, complex network and their combination and introduced the theory of linear correlation and brain connection.2. The study analyzed the data of Fmri visual color identity experiment, the brain functional network was constructed by voxels which were activated significantly in the task, based on which, the analysis of individual network and 9 persons' average network is made.3. We propose a concept named 'degree map', which can reflect the interrelationship among voxels, and can present the hub and spatial distribution of the functional clusters within each region of interest (ROI) for a specific task. The results show that, These two values can depict the property of voxels in activated brain region from different angles and levels. The degree reflects the functional interaction. Therefore degree may have more important significance in understanding the brain function. This work offers a feasible method to analyze the brain imaging data from a systematic perspective.4. At last, the stability of brain functional network was discussed and made numerical value simulation for the anti-dilapidated ability of brain functional network. The results indicated that the network is of higher stability.