Fig. 1.

An example of the material collected for each patient. Left: patient with pontine lesion (patient 1; top left, lesion volume of 0.88 cm³ indicated in red on the T1-weighted anatomical MRI scan) showed moderately good compliance of the swallowing task (bottom right; thyroid cartilage movements over time indicated a factor of 0.5). The fMRI showed bilateral activation in M1S1 (left bottom, FEW-corrected). White matter diffusion imaging between the tongue/larynx/lip area of the primary sensorimotor cortex and pons showed strong symmetry of the pyramidal tracts descending from the face area (right top).