Table 3. Means and standard deviations of correct categorization of facial stimuli in ALS patients and healthy controls of the emotion recognition task at behavioral level of all patients and patients that participated in fMRI.

	ALS patients N = 30	ALS patients (fMRI) N = 15	Healthy controls N = 29	ALS patients (n = 30) vs. healthy controls		ALS patients (n = 15) vs. healthy controls
Emotion	mean ± SD	mean ± SD	mean ± SD	F	p	F	p
Anger	6.53 ± 2.68	6.80 ± 2.54	7.55 ± 2.13	4.6	0.04*	1.1	0.31
Disgust	6.27 ± 2.55	5.73 ± 3.03	7.83 ± 2.33	9.8	<0.01**	3.2	0.02*
Fear	3.23 ± 1.87	3.47 ± 2.07	5.52 ± 2.21	34.2	<0.01**	0.1	<0.01**
Happiness	9.63 ±0.67	9.40 ± 0.83	9.83 ± 0.47	2.5	0.11	6.9	0.03*
Sadness	6.70 ± 2.00	6.53 ± 2.23	6.62 ± 2.09	0.3	0.60	0.3	0.90
Surprise	8.23 ± 1.52	7.53 ± 1.73	8.03 ± 1.48	0.7	0.39	0.3	0.32

* indicates statistical significance with p<0.05

** with p<0.01 in a two-sample t-test.