Table 3.

Descriptive statistics of study participants.

Variable	All (n=8)		Responders (n=6)	Non-Responders (n=2)	P (Mann-Whitney)b
	Mean±SD	P (K-S)a	Mean±SD
Age, y	24.46±2.35	0.20	24.05±2.61	25.69±0.74	0.50
BMI, kg/m2	20.65±2.62	0.20	19.46±1.47	24.19±1.93	0.04*
IQ	103.50±22.58	0.20	112.17±18.33	77.50±9.19	0.04*
Gamma changec	-	-	2.24±1.52	−0.29±0.07	0.04*

^aResults from the K-S test assessing the normal distribution of variables;

^bResults from the Mann-Whitney U test examining significant differences between responders and non-responders groups;

^cMean gamma power change from pretraining to training over 8 neurofeedback sessions (μV²);

^*P<0.05.