Alterations in white matter network dynamics in patients with schizophrenia and bipolar disorder |
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Authors: | Bin Wang Shanshan Zhang Xuexue Yu Yan Niu Jinliang Niu Dandan Li Shan Zhang Jie Xiang Ting Yan Jiajia Yang Jinglong Wu Miaomiao Liu |
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Affiliation: | 1. Department of Information and Computer, Taiyuan University of Technology, Taiyuan China ; 2. Department of Medical Imaging, The Second Hospital of Shanxi Medical University, Taiyuan China ; 3. Teranslational Medicine Research Center, Shanxi Medical University, Taiyuan China ; 4. Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama Japan ; 5. School of Psychology, Shenzhen University, Shenzhen China |
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Abstract: | Emerging evidence suggests white matter network abnormalities in patients with schizophrenia (SZ) and bipolar disorder (BD), but the alterations in dynamics of the white matter network in patients with SZ and BD are largely unknown. The white matter network of patients with SZ (n = 45) and BD (n = 47) and that of healthy controls (HC, n = 105) were constructed. We used dynamics network control theory to quantify the dynamics metrics of the network, including controllability and synchronizability, to measure the ability to transfer between different states. Experiments show that the patients with SZ and BD showed decreasing modal controllability and synchronizability and increasing average controllability. The correlations between the average controllability and synchronizability of patients were broken, especially for those with SZ. The patients also showed alterations in brain regions with supercontroller roles and their distribution in the cognitive system. Finally, we were able to accurately discriminate and predict patients with SZ and BD. Our findings provide novel dynamic metrics evidence that patients with SZ and BD are characterized by a selective disruption of brain network controllability, potentially leading to reduced brain state transfer capacity, and offer new guidance for the clinical diagnosis of mental illness. |
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Keywords: | classification control strategy controllability supercontroller synchronizability tradeoff |
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