Table 1. Hand movement significant differences between IG and the control group separated by visual target type for each condition.

Target type	Dependent Variable	Condition	IG: mean Δ   in performance	Controls: mean Δ in performance (±95% CI)	t-value	Effect size
Diagonal	HRT	C180°	354.4 ms	99.5 ± 31.9 ms	5.0*	5.4
		C90°	733.5 ms	253.0 ± 57.0 ms	5.6*	6.1
	HCMT	C180°	447.2 ms	46.6 ± 24.4 ms	10.8***	11.7
		C90°	2487.8 ms	309.1 ± 126.0 ms	15.4***	16.6
	Peak velocity	C90°	-69.0 ms/s	-4.5 ± 8.3 mm/s	-6.8**	-7.4
	On-axis CE	C180°	-12.1 mm	0.3 ± 1.0 mm	-10.2***	-11
	Off-axis CE	S	6.5 mm	0.8 ± 0.9 mm	4.7*	5.1
		C180°	6.2 mm	-1.0 ± 1.1 mm	6.3*	6.9
	Path length	C180°	32.6 mm	14.6 ± 6.6 mm	10.6***	11.4
	Angle	C180°	11.6°	2.4 ± 1.4°	5.5*	5.9
		S	12.2°	2.6 ± 1.1°	6.2**	6.7
		C90°	25.9°	3.1 ± 1.4°	17.1****	18.5
	TTR	C90°	2613.5 ms	410.5 ± 112.4 ms	18.1****	19.6
Horizontal	HMT	C180°	408.3 ms	52.6 ± 62.1 ms	5.1*	5.5
		C90°	316.6 ms	73.0 ± 77.0 ms	4.6*	5.0
	HCMT	C90°	702.7 ms	220.0 ± 85.7 ms	4.5*	4.8
		H	98.7 ms	26.2 ± 10.4 ms	4.8*	5.2
	Peak velocity	C90°	-57.0 ms/s	-21.5 ± 9.3 mm/s	-4.4*	-4.8
	Path length	C180°	24.0 mm	7.2 ± 3.7 mm	5.2*	5.6
	TTR	C180°	1622.0 ms	439.5 ± 0 mm	4.2*	4.5

Table 1 note: Dependent variables (HRT = hand reaction time; HMT = ballistic hand movement time; HCMT = corrective hand movement time; peak velocity; on/off-axis CE = constant error; Angle = angle at peak velocity; path length; TTR = time to recovery from a direction reversal) were tested with separate modified t-tests [53] for each condition (C = coronal 180°/90°; H = horizontal; S = para-sagittal) for each visual target type (diagonal/horizontal). Note that a negative change in peak velocity or on-axis CE reflects an impaired performance for IG relative to the controls. *p′<0.05; **p′<0.001; ***p′<0.001; ****p′<0.0001, corrected for multiple comparisons (Holm-Bonferroni).