Patients' characteristics
| Group | Patient | Age (y) | Education (y) | Diagnosis | Motor score |
Dysarthria score |
| LCB (n=13) | L1 | 41 | 5 | Left medulloblastoma | 12 | 1 |
| L2 | 81 | 5 | Left PICA stroke | 0 | 0 | |
| L3 | 48 | 12 | Left gangliocytoma | 3 | 0 | |
| L4 | 68 | 3 | Left PICA stroke | 7 | 0 | |
| L5 | 37 | 5 | Left vascular malformation | 1 | 0 | |
| L6 | 42 | 11 | Left vascular malformation | 4 | 0 | |
| L7 | 41 | 12 | Left vascular malformation | 3 | 0 | |
| L8 | 44 | 12 | Left SCA stroke | 1 | 0 | |
| L9 | 67 | 5 | Left PICA stroke | 6 | 0 | |
| L10 | 70 | 3 | Left cyst | 4 | 0 | |
| L11 | 78 | 8 | Left haemorragic stroke | 7 | 0 | |
| L12 | 29 | 12 | Left haemangioblastoma | 1 | 0 | |
| L13 | 34 | 18 | Left haemorragic stroke | 7 | 0 | |
| RCB (n=6) | R1 | 70 | 8 | Right AICA stroke | 19 | 3 |
| R2 | 32 | 13 | Right medulloblastoma | 3 | 0 | |
| R3 | 74 | 5 | Right AICA stroke | 7 | 0 | |
| R4 | 60 | 5 | Right metastatic lesion | 1 | 0 | |
| R5 | 42 | 18 | Right embolic stroke | 6 | 2 | |
| R6 | 70 | 8 | Right AICA stroke | 19 | 2 | |
| ICA (n= 6) | I1 | 27 | 12 | Cerebellar atrophy | 12 | 2 |
| I2 | 59 | 8 | Cerebellar atrophy | 4 | 2 | |
| I3 | 52 | 8 | Cerebellar atrophy | 6 | 1 | |
| I4 | 72 | 12 | Cerebellar atrophy | 18 | 3 | |
| I5 | 25 | 13 | Cerebellar atrophy | 9 | 2 | |
| I6 | 31 | 8 | Cerebellar atrophy | 8 | 1 |
LCB group=patients affected by focal cerebellar lesions on the left side; RCB group=patients affected by focal cerebellar lesions on the right side; ICA group=patients affected by idiopathic cerebellar ataxia, the diagnosis of ICA was based on clinical indications of a purely cerebellar syndrome and on MRI evidence of atrophic pathology restricted to the cerebellum. AICA=anterior inferior cerebellar artery; PICA=posterior inferior cerebellar artery; SCA= superior cerebellar artery.