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• W2495854102 endingPage "sbw110" @default.
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• W2495854102 abstract "Previous network studies in chronic schizophrenia patients revealed impaired structural organization of the brain's rich-club members, a set of highly interconnected hub regions that play an important integrative role for global brain communication. Moreover, impaired rich-club connectivity has also been found in unaffected siblings of schizophrenia patients, suggesting that abnormal rich-club connectivity is related to familiar, possibly reflecting genetic, vulnerability for schizophrenia. However, no study has yet investigated whether structural rich-club organization is also impaired in individuals with a clinical risk syndrome for psychosis. Diffusion tensor imaging and probabilistic tractography was used to construct structural whole-brain networks in 24 healthy controls and 24 subjects with an at-risk mental state (ARMS). Graph theory was applied to quantify the structural rich-club organization and global network properties. ARMS subjects revealed a significantly altered structural rich-club organization compared with the control group. The disruption of rich-club organization was associated with the severity of negative psychotic symptoms and led to an elevated level of modularity in ARMS subjects. This study shows that abnormal structural rich-club organization is already evident in clinical high-risk subjects for psychosis and further demonstrates the impact of rich-club disorganization on global network communication. Together with previous evidence in chronic schizophrenia patients and unaffected siblings, our findings suggest that abnormal structural rich-club organization may reflect an endophenotypic marker of psychosis." @default.
• W2495854102 created "2016-08-23" @default.
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• W2495854102 date "2016-08-01" @default.
• W2495854102 modified "2023-10-03" @default.
• W2495854102 title "Structural Network Disorganization in Subjects at Clinical High Risk for Psychosis" @default.
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• W2495854102 doi "https://doi.org/10.1093/schbul/sbw110" @default.
• W2495854102 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/5464048" @default.
• W2495854102 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/27481826" @default.
• W2495854102 hasPublicationYear "2016" @default.
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