Table 2.

Summary of group mean averages ± SD (top) and variability (mean ± SD) (bottom) of CR onset and peak time latencies in the control group compared with all cerebellar patients and cerebellar subgroups

	CR onset, all CRs	CR peak time, all CRs	CR onset, at least 10 CRs	CR peak time, at least 10 CRs
Group mean averages
Controls	−132.0 ± 37.8	−90.6 ± 39.0	−126.6 ± 32.24	−84.8 ± 33.7
(n = 45/41*)
All patients	−151.1 ± 39.5	−110.8 ± 41.9	−143.5 ± 26.1	−101.5 ± 26.2
(n = 43/23)	p = 0.023	p = 0.022	p = 0.036	p = 0.045
Degenerative	−157.8 ± 45.6	−113.9 ± 49.5	−150.6 ± 29.3	−110.1 ± 26.9
(n = 16/4)	p = 0.031	p = 0.061	p = 0.16	p = 0.15
SCA	−157.8 ± 38.4	−118.5 ± 37.2	−151.7 ± 25.0	−107.7 ± 22.7
(n = 14/9)	p = 0.031	p = 0.022	p = 0.034	p = 0.059
SCA cortical	−178.0 ± 20.1	−136.2 ± 31.6	−165.5 ± 10.6	−118.7 ± 24.1
(n = 5/3)	p = 0.011	p = 0.015	p = 0.046	p = 0.097
SCA nuclear	−148.3 ± 45.0	−110.7 ± 40.1	−147.1 ± 30.7	−104.2 ± 23.9
(n = 8/5)	p = 0.28	p = 0.18	p = 0.18	p = 0.22
PICA	−135.7 ± 29.7	−98.5 ± 36.5	−133.4 ± 24.9	−92.5 ± 28.6
(n = 13/10)	p = 0.75	p = 0.51	p = 0.54	p = 0.51
Group mean SDs
Control subjects	62.3 ± 18.8	61.6 ± 21.8	62.1 ± 18.9	60.6 ± 22.0
(n = 45/41*)
All patients	69.1 ± 26.9	66.6 ± 25.2	70.1 ± 12.6	69.7 ± 14.5
(n = 43/23)	p = 0.16	p = 0.32	p = 0.049	p = 0.053
Degenerative	62.0 ± 36.9	60.5 ± 32.3	66.5 ± 6.2	68.5 ± 12.2
(n = 16/4)	p = 0.97	p = 0.87	p = 0.64	p = 0.48
SCA	71.5 ± 13.8	69.7 ± 15.9	74.5 ± 13.8	74.5 ± 11.9
(n = 14/9)	p = 0.095	p = 0.20	p = 0.070	p = 0.076
SCA cortical	67.3 ± 12.3	70.0 ± 14.1	62.3 ± 13.6	67.1 ± 8.7
(n = 5/3)	p = 0.56	p = 0.40	p = 0.99	p = 0.61
SCA nuclear	74.0 ± 15.8	69.2 ± 18.9	82.3 ± 10.0	79.4 ± 13.2
(n = 8/5)	p = 0.10	p = 0.36	p = 0.025	p = 0.071
PICA	74.6 ± 22.8	71.0 ± 23.8	67.5 ± 13.2	65.8 ± 17.3
(n = 13/10)	p = 0.052	p = 0.18	p = 0.40	p = 0.49

Two-tailed unpaired t test were performed for group comparisons. n, Number of all subjects in each group/number of subjects who revealed at least 10 CRs.