Abstract
Tourette syndrome (TS) is a neuropsychiatric disorder with childhood onset characterized by chronic motor and vocal tics; however, the current diagnosis of TS patients is subjective, as it is mainly assessed based on the parents’ description alongside specific evaluations. The early and accurate diagnosis of TS based on its potential symptoms in children would be of benefit in their future therapy, but reliable diagnoses are difficult due to the lack of objective knowledge of the etiology and pathogenesis of TS. In this study, resting–state electroencephalograms were first collected from 36 patients and 21 healthy controls (HCs); the corresponding resting–state functional networks were then constructed, and the potential differences in network topology between the two groups were extracted by using the topology of the spatial pattern of the network (SPN). Compared to the HCs, the TS patients exhibited decreased frontotemporal/occipital/parietal connectivity. When classifying the two groups, compared to the network properties, the derived SPN features achieved a much higher accuracy of 92.31%. The intrinsic long-range connectivity between the frontal and the temporal/occipital/parietal lobes was damaged in the patient group, and this dysfunctional network pattern might serve as a reliable biomarker to differentiate TS patients from HCs as well as to assess the severity of tic symptoms.
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Acknowledgement
This work were supported by the National Key Research and Development Plan of China (#2017YFB1002501), the National Natural Science Foundation of China (grant numbers #81771925 and #71601136), and the Sichuan Science and Technology Program (grant number 2018JY0526).
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Duan, K., Wu, Q., Liao, Y. et al. Discrimination of Tourette Syndrome Based on the Spatial Patterns of the Resting–State EEG Network. Brain Topogr 34, 78–87 (2021). https://doi.org/10.1007/s10548-020-00801-5
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DOI: https://doi.org/10.1007/s10548-020-00801-5