Table 11.

Mean comparison of neuropsychological functions by lateralization of frontal lobe lesion

	LFL	RFL	BFL	F
	(n = 11)	(n = 15)	(n = 23)
WCST
% errors	33.45±18.37	48.73±17.04	60.52±11.98	12.03***
% perseverative errors	18.09±9.34	23.87±10.60	38.30±16.51	10.05***
% conceptual level responses	59.00±23.88	36.53±24.24	21.48±13.80	13.40***
No. of completed categories	4.09±2.07	2.20±2.24	1.13±1.60	8.85***
CTT2	199.64±90.37	192.93±80.75	254.70±68.44	3.56
COWAT	34.64±27.29	42.33±22.39	23.74±13.57	4.03
EMQ	57.00±42.32	51.60±31.27	83.48±36.35	4.12
GDS	11.00±6.13	11.47±8.59	18.00±7.42	4.86**
STAI	42.27±15.30	45.87±11.15	51.00±14.00	0.72
ABS	11.00±8.94	15.20±8.44	14.61±8.81	0.85

**p < 0.01, ***p < 0.001. LFL, left frontal lesion; RFL, right frontal lesion; BFL, bilateral frontal lesion; WCST, Wisconsin Card Sorting Test; CTT2, Color Trail Test 2; COWAT, Controlled Oral Word Association Test; EMQ, Everyday Memory Questionnaire; GDS, Geriatric Depression Scale; STAI, State-Trait Anxiety Inventory; ABS, Agitated Behavior Scale.