Table.

Gaze stabilization test (GST) average head velocity (mean ± standard deviation, 95% confidence interval (CI, degrees/sec) for healthy control subjects and patients in yaw and pitch plane directions.

	GST velocity (degrees/second) by head direction
Subject group	Left (95% CI)	Right (95% CI)	Down (95% CI)	Up (95% CI)
Healthy-young (n = 20)	114 ± 51 (90–137)	107 ± 52 (83–131)	117 ± 50 (94–141)	104 ± 51 (81–128)
Healthy-old (n = 20)	126 ± 51* (102–151)	127 ± 56 (100–153)	105 ± 38 (87–122)	97 ± 35* (80–114)
Patient (n = 15)	93 ± 62 (59–127)	90 ± 54† (59–121)	76 ± 30† (58–93)	76 ± 38† (54–98)

^*One control subject did not complete

^†One patient did not complete