Fig. 1: The alteration of cortical thickness in TD and ET patients compared to HC.

A, C Brain regions showing significant cortical thickness alteration in the two patients groups compared to HC, visualized on inflated brain by Freesurfer. Red areas represent an increase in cortical thickness, and the blue areas represent the cortical thickness decreased. B, D Violin plots directly illustrate the difference in cortical thickness between groups. The results were corrected by MCS with P < 0.05. **P < 0.01, ***P < 0.001. TD Tremor-dominant Parkinson’s disease, ET essential tremor, HC healthy controls, MCS Monte Carlo Simulation.