Table 2. Comparison of Patients and Control Group in Working Memory variables.

Variables	Mean ± SD	df	T	P Vaue
Span length		58	-3.89	0.001 a
Patient, n = 30	4.90 ± 1.09
Control, n = 30	6.03 ± 1.15
Mean time to first response		58	3.40	0.01 a
Patient, n = 30	3606.25 ± 924.58
Control, n = 30	2992.36 ± 349.35
Mean time to last response		58	3.88	0.001 a
Patient, n = 30	4617.68 ± 1070.75
Control, n = 30	3810.53 ± 380.74
Total errors		58	-1.14	0.256
Patient, n = 30	12.47 ± 4.32
Control	14.07 ± 6.30
Total usage errors		58	0.291	0.772
Patient, n = 30	2.10 ± 1.42
Control, n = 30	2 ± 1.23

^aP ˂ 0.05.