Results of our study are compatible with these reports and show efficacy of theta suppression/alpha enhancement on hyperactivity, inattention, and also omission errors. In the present study none of two protocols had an effect on oppositional and impulsive behaviors as well as the error of commission which reflect impulsivity. Leins et al. compared the NF treatment with theta/beta frequencies protocol and training slow cortical potentials and did not find any significant difference between the two considerably effective protocols in terms of behavioral or perceptual results . However, in contrast to our results Gevensleben et al. observed that both slow cortical potential NF and theta/beta protocol have not positive effect on improving the behavioral problems related to disobedience and opposition . Results of our study showed that both theta suppression/beta enhancement and theta suppression/alpha enhancement protocols were effective in reducing clinical symptoms. However high-frequency alpha enhancement protocol made more suppression in omission errors which reflect inattentiveness.