ArticleBMC neurology2023
Alterations in the topological organization of the default-mode network in Tourette syndrome.
Article in BMC neurology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed, 4 citations in OpenAlex.
- Aberrant brain functional connectivity is associated with clinical symptoms in tourette syndrome: a triple network model perspective.European child & adolescent psychiatry · 2026Article
- Functional Brain Network Abnormalities and Aripiprazole's Modulatory Effects in Pediatric Tic Disorder.Brain and behavior · 2026Article
- Functional connectivity of the precuneus and posterior cingulate cortex moderates the relationship between tic symptoms and premonitory urge in tourette syndrome.European child & adolescent psychiatry · 2025Article
- Tourette syndrome research highlights from 2023.F1000Research · 2024Review
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
Abstract
backgroundThe exact pathophysiology of TS is still elusive. Previous studies have identified default mode networks (DMN) abnormalities in patients with TS. However, these literatures investigated the neural activity during the tic suppression, not a true resting-state. Therefore, this study aimed to reveal the neural mechanism of Tourette's syndrome (TS) from the perspective of topological organization and functional connectivity within the DMN by electroencephalography (EEG) in resting-state.
methodsThe study was conducted by analyzing the EEG data of TS patients with graph theory approaches. Thirty children with TS and thirty healthy controls (HCs) were recruited, and all subjects underwent resting-state EEG data acquisition. Functional connectivity within the DMN was calculated, and network properties were measured.
resultsA significantly lower connectivity in the neural activity of the TS patients in the β band was found between the bilateral posterior cingulate cortex/retrosplenial cortex (t = -3.02, p < 0.05). Compared to HCs, the TS patients' local topological properties (degree centrality) in the left temporal lobe in the γ band were changed, while the global topological properties (global efficiency and local efficiency) in DMN exhibited no significant differences. It was also demonstrated that the degree centrality of the left temporal lobe in the γ band was positively related to the Yale Global Tic Severity Scale scores (r = 0.369, p = 0.045).
conclusionsThe functional connectivity and topological properties of the DMN of TS patients were disrupted, and abnormal DMN topological property alterations might affect the severity of tic in TS patients. The abnormal topological properties of the DMN in TS patients may be due to abnormal functional connectivity alterations. The findings provide novel insight into the neural mechanism of TS patients.
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