Stokes, et al. 55 (3) 2025 Supplementary version

Table 1

Admission

VFT1 (n = 8)

Discharge

VFT2 (n = 8)

Follow-Up

3MFU (n = 8)

Normative data (n = 15)

Time of assessment

2.13 days

9.63 days

6.53 months

NA

Nystagmus slow phase velocity (degrees/second)

Centre

Away from lesion

Towards lesion

1.50 (SD 2.51)

3.50 (SD 3.30)

2.00 (SD 3.25)

0 (SD 0)

0.88 (SD 1.25)

0.38 (SD 1.06)

0.38 (SD 1.06)

1.25 (SD  2.31)

0.13 (SD  0.35)

Centre: 0.15 (SD  0.60)

Left: 0.23 (SD  0.70)

Right: 1.54 (SD  2.00)

Optokinetic response

Gain

Away from Lesion 

Towards Lesion 

54% (SD 19%) 

64% (SD 16%) 

53% (SD 20%) 

56% (SD 27%) 

48% (SD 25%) 

48% (SD 28%) 

Left: 65% (SD 25%) 

Right: 64% (SD 29%) 

Smooth pursuit gain

0.2Hz

0.3Hz

0.4Hz

86% (SD 10%)

78% (SD 12%)

72% (SD 10%)

85% (SD 14%)

84% (SD  12%)

71% (SD 15%)

89% (SD 12%)

84% (SD 12%)

72% (SD 13%)

94% (SD 13%)

91% (SD 14%)

82% (SD 15%)

Saccadic

Accuracy away from lesion

Accuracy towards lesion

Latency away from lesion

Latency towards lesion

96.55% (SD 2.79%)

96.56% (SD 4.53%)

195.38 (SD 11.59)

193.06 (SD 13.19)

97.94% (SD 2.09%)

96.16% (SD 4.68%)

195.03 (SD 18.34)

191.02 (SD 19.10)

98.13% (SD 2.36%)

97.72% (SD 2.83%)

193.53 (SD 18.65)

194.52 (SD 30.18)

Left: 96.98% (SD 6.11%)

Right: 100.30% (SD 3.85%)

Left: 190.00 (SD 18.61)

Right: 186.46 (SD 23.60)

VOR sinusoidal rotation

Gain 0.2Hz (n=8)

Asymmetry 0.2Hz (n=8)

Gain 0.32Hz (n=7)

Asymmetry 0.32Hz (n=7)

43% (SD 14%)

19% (SD 17%)

42% (SD 14%)

20% (SD 18%)

42% (SD 15%)

6% (SD 17%)

48% (SD 18%)

1% (SD 26%)

44% (SD 17%)

5% (SD 9%)

49% (SD 11%)

5% (SD 9%)

50% (SD 21%)

0% (SD 0.08%)

54% (SD 19%)

0.03% (SD 0.08%)

VOR step rotation

Time constant away lesion (per)

Time constant towards lesion (per)

10.74 (SD 3.96)

6.17 (SD 3.76)

10.14 (SD 5.13)

6.36 (SD 4.87)

9.70 (SD 3.58)

6.99 (SD 2.88)

Left: 9.23 (SD 4.88)

Right: 9.64 (SD 7.55)

Vertical Perception

(degrees from vertical)

Static stimulus

Dynamic stimulus

(away from lesion)

Dynamic stimulus (towards lesion)

-0.25 (SD 1.01)

-0.21 (SD 1.21)

1.55 (SD 1.52)

-0.41 (SD 0.90)

0.92 (SD 0.91)

1.81 (SD 2.16)

-0.13 (SD 0.85)

0.84 (SD 1.35)

0.98 (SD 0.97)

-0.04 (SD 0.54)

Anti-Clockwise:

0.58 (SD 0.79)

Clockwise:

0.91 (SD 0.74)

Posturography (velocity in cm/s)

Feet apart eyes open (FAEO)

Feet apart eyes closed (FAEC)

Feet together eyes open (FTEO)

Feet together eyes closed (FTEC)

Tandem eyes open (TEO)

Tandem eyes closed (TEC)

Measured time in TEC

10.88 (SD 3.14)

23.75 (SD 20.24)

23.47 (SD 8.26)

74.45 (SD 56.93)

54.89 (SD 22.23)

146.81 (SD 75.44)

14.2 seconds (range 0-30)

12.59 (SD 2.10)

19.09 (SD 7.74)

21.15 (SD 9.30)

48.22 (SD 41.81)

45.07 (SD 26.07)

70.38 (SD 27.04)

18.3 seconds (range 0-30)

11.87 (SD 4.88)

17.75 (SD 13.75)

16.06 (SD 5.90)

30.22 (SD 21.69)

29.20 (SD 9.76)

66.52 (SD 29.26)

25 seconds (range 0-30)

17.83 (SD 4.05)

19.92 (SD 4.11)

19.25 (SD 3.87)

23.49 (SD 3.64)

34.63 (SD 7.65)

73.14 (SD 32.97)

24 seconds (range 6-30)

Dynamic gait index (DGI)

19 (range 16-23)

23 (range 20-24)

24 (range 23-24)

Total = 24                      

Reference scores:³²

> 22 = safe ambulators

< 19 = predictive of falls