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Abnormal Degree Centrality of Bilateral Putamen and Left Superior Frontal Gyrus in Schizophrenia with Auditory Hallucinations: A Resting-state Functional Magnetic Resonance Imaging Study

摘要Background: Dysconnectivity hypothesis of schizophrenia has been increasingly emphasized.Recent researches showed that this dysconnectivity might be related to occurrence of auditory hallucination (AH).However, there is still no consistent conclusion.This study aimed to explore intrinsic dysconnectivity pattern of whole-brain functional networks at voxel level in schizophrenic with AH.Methods: Auditory hallucinated patients group (n =42 APG), no hallucinated patients group (n =42 NPG) and normal controls (n =84 NCs) were analyzed by resting-state functional magnetic resonance imaging.The functional connectivity metrics index (degree centrality [DC]) across the entire brain networks was calculated and evaluated among three groups.Results: DC decreased in the bilateral putamen and increased in the left superior frontal gyrus in all the patients.However, in APG, the changes of DC were more obvious compared with NPG.Symptomology scores were negatively correlated with the DC of bilateral putamen in all patients.AH score of APG positively correlated with the DC in left superior frontal gyrus but negatively correlated with the DC in bilateral putamen.Conclusion: Our findings corroborated that schizophrenia was characterized by functional dysconnectivity, and the abnormal DC in bilateral putamen and left superior frontal gyrus might be crucial in the occurrence of AH.

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作者单位 Neuropsychiatry Institution,Renmin Hospital of Wuhan University,Wuhan,Hubei 430060,China [1] Department of Psychiatry,Renmin Hospital of Wuhan University,Wuhan,Hubei 430060,China [2] Department of Radiology,Renmin Hospital of Wuhan University,Wuhan,Hubei 430060,China [3] LIAMA Center for Computational Medicine,National Laboratory of Pattern Recognition,Institute of Automation,Chinese Academy of Sciences,Beijing 110016,China [4]
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DOI 10.4103/0366-6999.170269
发布时间 2016-01-06(万方平台首次上网日期,不代表论文的发表时间)
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中华医学杂志(英文版)

中华医学杂志(英文版)

2015年128卷23期

3178-3184页

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