Neurofeedback efficacy is graded on a 1-5 scale. Where a rating of 1 is not empirically supported it
consists primarily of case studies or anecdotal reports. A rating of 5 indicates that the therapy
has been found to be superior.
Neurofeedback has been proven effective (level 4) for Attention Deficit Hyperactivity Disorder (ADHD) and anxiety disorders.
Correcting the excessive theta activity and deficits of beta seen in the central and frontal areas of the brain in ADHD,
contributes to improvement in perfusion in areas of impaired or sluggish brain function.