Mr. Bochao Jia Profile

Bochao Jia

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Proceedings Article | 6 March 2018 Presentation + Paper

Tracking the development of brain connectivity in adolescence through a fast Bayesian integrative method

Aiying Zhang, Bochao Jia, Yu-Ping Wang

Proceedings Volume 10579, 105790O (2018) https://doi.org/10.1117/12.2292679

KEYWORDS: Brain, Functional magnetic resonance imaging, Neuroimaging, Prefrontal cortex, Biomedical engineering, Data integration, Independent component analysis, Visualization

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Adolescence is a transitional period between childhood and adulthood with physical changes, as well as increasing emotional activity. Studies have shown that the emotional sensitivity is related to a second dramatical brain growth. However, there is little focus on the trend of brain development during this period. In this paper, we aim to track the functional brain connectivity development in adolescence using resting state fMRI (rs-fMRI), which amounts to a time-series analysis problem. Most existing methods either require the time point to be fairly long or are only applicable to small graphs. To this end, we adapted a fast Bayesian integrative analysis (FBIA) to address the short time-series difficulty, and combined with adaptive sum of powered score (aSPU) test for group difference. The data we used are the resting state fMRI (rs-fMRI) obtained from the publicly available Philadelphia Neurodevelopmental Cohort (PNC). They include 861 individuals aged 8–22 years who were divided into five different adolescent stages. We summarized the networks with global measurements: segregation and integration, and provided full brain functional connectivity pattern in various stages of adolescence. Moreover, our research revealed several brain functional modules development trends. Our results are shown to be both statistically and biologically significant.

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