Table 2 Measurements of rotary chair experiment

Rotary motion perception threshold (°/s)

10.85 +/- 14.12

N/A; [0.3-68.0]

29.48 +/- 23.49

N/A; [2.5-72.0]

<0.001*

 Initial vegetative symptoms (SR 2) (s)

283.19 +/- 145.06

N/A; [62-573]

683.9 +/- 250.78

N/A; [277-1166]

<0.001*

 Mild nausea

(SR 3) (s)

503.46 +/- 175.56

N/A; [215-740]

704.5 +/- 126.57

N/A; [615-794]

0.233*

 Severe vegetative symptoms (SR 4) (s)

719.95 +/- 238.39

N/A; [247-1195]

739 +/- 0

N/A; [739-739]

0.939*

 Asymptomatic (SR 1) (s)

283.19 +/- 145.06

N/A; [62-573]

1043.61 +/- 275.14

N/A; [277-1200]

<0.001*

 Initial vegetative symptoms (SR 2) (s)

220.27 +/- 139.49

N/A; [52-637]

417 +/- 277.89

N/A; [34-923]

0.008*

 Mild nausea (SR 3) (s)

308.81 +/- 187.76

N/A; [32-588]

265 +/- 199.4

N/A; [124-406]

0.809*

 … 1 min

2.65 +/- 0.8

2; [1–4]

1.18 +/- 0.39

1; [1, 2]

<0.001*

 … 5 min

1.65 +/- 0.8

1; [1–4]

1 +/- 0

1; [1]

<0.001*

 …10 min

1.12 +/- 0.43

1; [1–3]

1 +/- 0

1; [1]

0.11*

 … 15 min

1.04 +/- 0.2

1; [1, 2]

1 +/- 0

1; [1]

N/A

 … 20 min

1 +/- 0

1; [1]

1 +/- 0

1; [1]

N/A

Beginning of per-rotatory nystagmus (s)

9.11 +/- 9.6

[1-36]

5.2 +/- 6.65

[1-26]

0.159

Maximum velocity of the slow phase (deg/s)

39.27 +/- 26.97

[3.5-92.1]

45.96 +/- 40.17

[6.0-149.6]

0.85

Average velocity of slow phase (deg/s)

8.26 +/- 5.46

[1.9-25.7]

8.95 +/- 7.17

[3.0-29.3]

0.92