A study showed that NF technique, through improving the sensorimotor rhythm (12–15 Hz) and beta activity (15–181 Hz), as well as medication (methylphenidate), has positive effect on improving inattention and speed and precision of continuous attention . Previous studies also reported a significant improvement in ADHD symptoms after NF treatment in more than 3 out 4 children with ADHD [10, 32]. Most of researchers have evaluated beneficial effect of increasing beta (which reflects cognitive tasks) and decreasing theta which may coincide with ADHD and is related to hyperactivity, impulsivity, and inattentiveness. Alpha wave activity is related to cognitive activities of the brain [22, 33] and also there is a relation between better cognitive activity and higher alpha power during resting condition and the lower alpha power during cognitive tasks .