An interventional study of IRM and comportemental tasks in Tourette Syndrome, sponsored by Institut National de la Santé Et de la Recherche Médicale, France. Completed at 1 site in France. Open to participants aged 18 Years to 65 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-09-04.
Sponsored by Institut National de la Santé Et de la Recherche Médicale, France · Not applicable, Interventional, and Other
Tourette syndrome (TS) is characterized by the presence of multiple vocal and motor tics. Behavioral disorders associated with TS are common, particularly impulsivity, anti-sociality and socially inappropriate behavior. Specifically, cognitive impulsivity could be the source of these troubles. Its anatomical substrates is based on connections between frontal and striatal areas.
Initially, a battery of behavioral tests measuring different types of impulsivity (motor, cognitive and decision) will be administered on three groups of subjects: TS: 80 patients (40 patients treated and 40 untreated) and 40 healthy volunteers.
Then, investigators will study the fronto-striatal connections in the TS group of 80 patients (40 patients treated and 40 untreated) compared to 40 healthy volunteers using neuroimaging techniques (3T MRI). The techniques used will be functional connectivity study of "resting state" MRI (RS-fMRI) combined with a reconstruction of white matter fibers by diffusion tensor imaging (DTI). Behavioral performance will be correlated with the correlation imaging data to highlight the functional anatomical substrates of impulsivity in patients with TS.
Finally, investigators will look specifically using functional MRI activation, the anatomical and functional substrates of the three types of impulsivity (motor, cognitive and decision-making).
Through this study, investigators hope to elucidate the anatomical and functional bases of cognitive impulsivity in patients with TS and thus lay the basis for more targeted treatments.
220 studies on the registry are indexed under Tourette Syndrome; 37 are open to participants now.
This study's enrollment of 98 is above the median of 34 across 166 interventional studies indexed under Tourette Syndrome.
Browse Tourette Syndrome studies →Institut National de la Santé Et de la Recherche Médicale, France is the lead sponsor of 375 studies on the registry; 82 are open to participants now.
Counted across the registry records on this site, refreshed daily.
For all subjects:
For TS patients treated :
For TS patients untreated:
In healthy volunteers:
Exclusion Criteria:
For all patients TS:
In healthy volunteers (HV):
For TS patients (treated and untreated) and HV
comportemental tasks included impulsivity tests will performed at V1 Resting state IRM will be performed at V2 40 patients
Other: IRM and comportemental tasks
comportemental tasks included impulsivity tests will performed at V1 Resting state IRM will be performed at V2 40 patients
Other: IRM and comportemental tasks
comportemental tasks included impulsivity tests will performed at V1 Resting state IRM will be performed at V2 80 subjects
Other: IRM and comportemental tasks
behavior performance (percentage of correct responses and reaction time)
Time frame: up to one month
BOLD signal of functional MRI scan
Time frame: up to one month
Plan to share: No
This study is completed, as verified in Aug 2021. You cannot join it, but the record below documents what was studied.
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Institut National de la Santé Et de la Recherche Médicale, France