Table 1

Performance of the three groups in numerical tasks and between group comparisons

	N	Right TLE		Left TLE		Control		Kruskal–Wallis test
	N	Mean	SD	Mean	SD	Mean	SD	Kruskal–Wallis test
RT, reaction time.
Number scale, sum	12	10.77	1.74	9.73	2.02	11.64	0.59	<0.0001
Input Arabic numerals	6	5.46	1.20	5.07	1.10	5.71	0.50	NS
Input number words	6	5.31	0.75	4.67	1.18	5.93	0.26	<0.0001
Arithmetic facts, sum	32	30.54	2.50	30.33	2.69	31.71	3.47
Addition	8	8	0	7.93	0.26	7.98	0.13	NS
Subtraction	8	8	0	7.93	0.26	7.91	0.35	NS
Multiplication	8	7.08	1.50	7.60	0.63	7.65	0.62	NS
Division	8	7.46	1.20	6.87	2.10	7.73	0.78	0.023
Mental calculation	15	11.85	2.97	12.00	3.07	14.00	1.05	<0.0001
RT, mental calculation (s)		117.31	56.69	140.33	61.45	98.53	32.35	0.018
Arithmetic principles	30	25.77	3.65	24.07	4.54	28.71	1.34	<0.0001
Semantic knowledge	20	14.38	2.53	13.20	3.23	16.31	2.18	0.018
Number comparison
Split 1 RT (ms)		631.62	120.7	653.75	138.95	512.34	56.59
Split 2 RT (ms)		620.37	111.46	631.14	121.98	488.73	62.29
Split 3 RT (ms)		597.58	116.00	589.14	111.45	470.53	45.05