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Ljubljana, Slovenia

17-19 June 2026

ePOSTERS

Evidence for a developmental delay in brain maturation in Tourette syndrome: a multicentre mega-analysis of TMS data

Oral presentation

Stephen Jakson

MRC International Tic Research Partnership

We report a multi-centre mega-analysis examining how motor cortex excitability develops across childhood, adolescence, and adulthood in Tourette syndrome (TS). We pooled resting motor threshold (RMT) data collected using TMS from 415 participants (229 with TS; 186 neurotypical controls; CS) collected at 11 international research centres. Individuals ranged in age from 8-48 years, (mean age: CS = 20 ± 7.9 years, TS = 18.7 ± 7.2 years). The groups did not differ in age or in the proportion of males and females in each group. These data allowed us to ask a fundamental question: Does the maturation of motor excitability follow a different developmental trajectory in individuals with TS?

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Supported by:
Association Française du Syndrome de Gilles de LaTourette
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