Table 2.

Comparison of the results of TMT, cancelling A's test and EEG. A’s test refers to the number of A's the patients has omitted to cancel in the test

	Preoperative	Long-term follow-up	P
TMT (s)
DSRS	55.3 ± 24.9	55.4 ± 27.9	NS
ES	60.1 ± 19.7	66.1 ± 40.1	NS
A's test
DSRS	4.9 ± 3.8	2.6 ± 2.5	< 0.05
ES	5.5 ± 4.3	3.7 ± 3.4	< 0.05
EEG (% abnormal)
DSRS	20%	36%	< 0.05
ES	16%	21%	NS

NS: Not significant.