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| Present | Absent | |
| SN | 4 (14%) | 24 (86%) |
| MVN | 21* (75%) | 7 (25%) |
| HSN | 20† (71%) | 8 (29%) |
| HTS | 18 (64%) | 10 (36%) |
| Caloric weakness | 26 (93%) | 2 (7%) |
SN: spontaneous nystagmus; MVN: mastoid vibration-induced nystagmus; HSN: head shaking-induced nystagmus; HTS: head thrust sign
One patient showed reversed MVN
Two patients showed reversed HSN
