Table 2.

SEPs latencies for the four groups.

PATIENT	GROUP	ERB’S POINT (LATENCIES, ms)	CERVICAL SPINE (LATENCIES, ms)	CEREBRAL CORTEX (LATENCIES, ms)	CENTRAL CONDUCTION TIMES (ms)
1	C	8.0	11.5	17.75	6.25
2	C	9.25	12.75	17.75	5
3	C	10.25	13.25	19.5	6.25
4	C	8.75	14.25	22.25	8
5	C	8.75	11.5	20.5	9
6	C	10.0	15.25	23.75	8.5
7	C	10.75	13.5	21.5	8
8	T	10.0	14.25	20.0	5.75
9	T	9.5	12.75	21.25	8.5
10	T	8.5	12.75	18.25	5.5
11	T	10.25	14.5	19.75	5.25
12	T	8.5	12.25	19.25	7
13	T	10.25	16.0	24.25	8.25
14	D	9.25	13.0	22.75	9.75
15	D	9.0	14.0	23.0	9
16	D	9.25	13.75	20.0	6.25
17	D	9.25	13.5	29.75	16.25
18	M	10.25	14.25	22.5	8.25
19	M	10.5	13.5	20.75	7.25
20	M	11	14.75	24.75	10
21	M	9.5	12.25	18.75	6.5
22	M	10	13.75	22.25	8.5

C = patients controls; T = tremor group; D = dysmetria group; M = mixed group (one patient could not tolerate the test).