Alterations in the microstructure of white matter in children and adolescents with Tourette syndrome measured using tract-based spatial statistics and probabilistic tractography
Tourette syndrome (TS) is a neurodevelopmental disorder characterised by repetitive and intermittent motor and vocal tics. TS is thought to reflect fronto-striatal dysfunction and the aetiology of the disorder has been linked to widespread alterations in the functional and structural integrity of th...
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Elsevier
2018
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| Online Access: | https://eprints.nottingham.ac.uk/52637/ |
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| author | Sigurdsson, Hilmar P. Pépés, Sophia E. Jackson, Georgina M. Draper, Amelia Morgan, Paul S. Jackson, Stephen R. |
| author_facet | Sigurdsson, Hilmar P. Pépés, Sophia E. Jackson, Georgina M. Draper, Amelia Morgan, Paul S. Jackson, Stephen R. |
| author_sort | Sigurdsson, Hilmar P. |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Tourette syndrome (TS) is a neurodevelopmental disorder characterised by repetitive and intermittent motor and vocal tics. TS is thought to reflect fronto-striatal dysfunction and the aetiology of the disorder has been linked to widespread alterations in the functional and structural integrity of the brain. The aim of this study was to assess white matter (WM) abnormalities in a large sample of young patients with TS in comparison to a sample of matched typically developing control individuals (CS) using diffusion MRI. The study included 35 patients with TS (3 females; mean age: 14.0 ± 3.3) and 35 CS (3 females; mean age: 13.9 ± 3.3). Diffusion MRI data was analysed using tract-based spatial statistics (TBSS) and probabilistic tractography. Patients with TS demonstrated both marked and widespread decreases in axial diffusivity (AD) together with altered WM connectivity. Moreover, we showed that tic severity and the frequency of premonitory urges (PU) were associated with increased connectivity between primary motor cortex (M1) and the caudate nuclei, and increased information transfer between M1 and the insula, respectively. This is to our knowledge the first study to employ both TBSS and probabilistic tractography in a sample of young patients with TS. Our results contribute to the limited existing literature demonstrating altered connectivity in TS and confirm previous results suggesting in particular, that altered insular function contributes to increased frequency of PU. |
| first_indexed | 2025-11-14T20:25:06Z |
| format | Article |
| id | nottingham-52637 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T20:25:06Z |
| publishDate | 2018 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-526372020-05-04T19:43:38Z https://eprints.nottingham.ac.uk/52637/ Alterations in the microstructure of white matter in children and adolescents with Tourette syndrome measured using tract-based spatial statistics and probabilistic tractography Sigurdsson, Hilmar P. Pépés, Sophia E. Jackson, Georgina M. Draper, Amelia Morgan, Paul S. Jackson, Stephen R. Tourette syndrome (TS) is a neurodevelopmental disorder characterised by repetitive and intermittent motor and vocal tics. TS is thought to reflect fronto-striatal dysfunction and the aetiology of the disorder has been linked to widespread alterations in the functional and structural integrity of the brain. The aim of this study was to assess white matter (WM) abnormalities in a large sample of young patients with TS in comparison to a sample of matched typically developing control individuals (CS) using diffusion MRI. The study included 35 patients with TS (3 females; mean age: 14.0 ± 3.3) and 35 CS (3 females; mean age: 13.9 ± 3.3). Diffusion MRI data was analysed using tract-based spatial statistics (TBSS) and probabilistic tractography. Patients with TS demonstrated both marked and widespread decreases in axial diffusivity (AD) together with altered WM connectivity. Moreover, we showed that tic severity and the frequency of premonitory urges (PU) were associated with increased connectivity between primary motor cortex (M1) and the caudate nuclei, and increased information transfer between M1 and the insula, respectively. This is to our knowledge the first study to employ both TBSS and probabilistic tractography in a sample of young patients with TS. Our results contribute to the limited existing literature demonstrating altered connectivity in TS and confirm previous results suggesting in particular, that altered insular function contributes to increased frequency of PU. Elsevier 2018-07-01 Article PeerReviewed Sigurdsson, Hilmar P., Pépés, Sophia E., Jackson, Georgina M., Draper, Amelia, Morgan, Paul S. and Jackson, Stephen R. (2018) Alterations in the microstructure of white matter in children and adolescents with Tourette syndrome measured using tract-based spatial statistics and probabilistic tractography. Cortex, 104 . pp. 75-89. ISSN 0010-9452 Diffusion tensor imaging ; Tourette syndrome ; Probabilistic tractography ; Graph theory ; Premonitory urges https://www.sciencedirect.com/science/article/pii/S0010945218301291?via%3Dihub doi:10.1016/j.cortex.2018.04.004 doi:10.1016/j.cortex.2018.04.004 |
| spellingShingle | Diffusion tensor imaging ; Tourette syndrome ; Probabilistic tractography ; Graph theory ; Premonitory urges Sigurdsson, Hilmar P. Pépés, Sophia E. Jackson, Georgina M. Draper, Amelia Morgan, Paul S. Jackson, Stephen R. Alterations in the microstructure of white matter in children and adolescents with Tourette syndrome measured using tract-based spatial statistics and probabilistic tractography |
| title | Alterations in the microstructure of white matter in children and adolescents with Tourette syndrome measured using tract-based spatial statistics and probabilistic tractography |
| title_full | Alterations in the microstructure of white matter in children and adolescents with Tourette syndrome measured using tract-based spatial statistics and probabilistic tractography |
| title_fullStr | Alterations in the microstructure of white matter in children and adolescents with Tourette syndrome measured using tract-based spatial statistics and probabilistic tractography |
| title_full_unstemmed | Alterations in the microstructure of white matter in children and adolescents with Tourette syndrome measured using tract-based spatial statistics and probabilistic tractography |
| title_short | Alterations in the microstructure of white matter in children and adolescents with Tourette syndrome measured using tract-based spatial statistics and probabilistic tractography |
| title_sort | alterations in the microstructure of white matter in children and adolescents with tourette syndrome measured using tract-based spatial statistics and probabilistic tractography |
| topic | Diffusion tensor imaging ; Tourette syndrome ; Probabilistic tractography ; Graph theory ; Premonitory urges |
| url | https://eprints.nottingham.ac.uk/52637/ https://eprints.nottingham.ac.uk/52637/ https://eprints.nottingham.ac.uk/52637/ |