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. 2022 Sep;272(6):1033-1043.
doi: 10.1007/s00406-021-01344-x. Epub 2021 Oct 9.

Hub-connected functional connectivity within social brain network weakens the association with real-life social network in schizophrenia patients

Yi-Jing Zhang #  1   2 , Ying Li #  3 , Yong-Ming Wang  4 , Shuang-Kun Wang  5 , Cheng-Cheng Pu  6 , Shu-Zhe Zhou  6 , Yan-Tao Ma  5 , Yi Wang  1   2 , Simon S Y Lui  7 , Xin Yu  5 , Raymond C K Chan  8   9
Affiliations

Hub-connected functional connectivity within social brain network weakens the association with real-life social network in schizophrenia patients

Yi-Jing Zhang et al. Eur Arch Psychiatry Clin Neurosci. 2022 Sep.

Abstract

Hubs in the brain network are the regions with high centrality and are crucial in the network communication and information integration. Patients with schizophrenia (SCZ) exhibit wide range of abnormality in the hub regions and their connected functional connectivity (FC) at the whole-brain network level. Study of the hubs in the brain networks supporting complex social behavior (social brain network, SBN) would contribute to understand the social dysfunction in patients with SCZ. Forty-nine patients with SCZ and 27 healthy controls (HC) were recruited to undertake the resting-state magnetic resonance imaging scanning and completed a social network (SN) questionnaire. The resting-state SBN was constructed based on the automatic analysis results from the NeuroSynth. Our results showed that the left temporal lobe was the only hub of SBN, and its connected FCs strength was higher than the remaining FCs in both two groups. SCZ patients showed the lower association between the hub-connected FCs (compared to the FCs not connected to the hub regions) with the real-life SN characteristics. These results were replicated in another independent sample (30 SCZ and 28 HC). These preliminary findings suggested that the hub-connected FCs of SBN in SCZ patients exhibit the abnormality in predicting real-life SN characteristics.

Keywords: Brain hub; Network analysis; Schizophrenia; Social brain network; Social function; Social network.

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