Table 1.

Number of head impulses performed by each patient

	Ipsilesional			Contralesional Total	Active Ipsilateral
No.	Total	LRG with CS	HRG with CS
1	34	28	0	39	23
2	30	29	0	28
3	42	39	3	43	27
4	44	0	18	44	3
5	28	1	21	32
6	25	25	0	36	31
7	27	10	10	21
8	40	0	25	40
9	25	0	12	29
10	30	21	5	33
11	33	17	11	31	20
12	37	28	3	34	32
13	29	23	0	22	13
14	23	11	3	25
15	25	19	1	34	13
16	32	7	4	35	17
17	8	0	7	10
18	16	0	12	6
19	12	4	4	11
20	20	8	3	13
21	12	0	8	12
22	20	0	17	18
23	11	4	2	8
	603	274	169	604	179

The first column reports the patient number, the following three columns refer to passive head impulses to the ipsilesional side and report their total followed by the number of analyzed impulses, i.e., those presenting a covert saccade (CS) within 150 ms from the onset of the head rotation, falling in the low residual gain (LRG) and high residual gain (HRG) groups. The following column represents the total number of head impulses performed to the healthy side and the last column reports the number of active head impulses to the ipsilesional side performed by the nine patients that were able to correctly perform them.