Figure 2.

Representative fMRI of SI, SII, and thalamic activations during finger and lip stimulations in individual subjects. Unilateral stimulation of left or right fingers (A) or lips (B) elicited BOLD‐activations in SI and SII areas and thalamus in controls (left panel), patients with TN (middle panel) and patients with TN after neurosurgical intervention (right panel). Representative examples are chosen for left or right stimulations in transversal or coronal views, yellow arrowheads point to activations contralateral to the stimulus. For display of individual data colors depicting the r‐statistic with uncorrected P‐values for the entire activation map were chosen to facilitate comparison with r‐values presented in this study. Each cluster fulfilled criteria of significance with a lower threshold of r > 0.25 and P < 0.05 (Bonferoni corrected; see methods section).