Tabriz University of Medical Sciences Medical Journal of Tabriz University of Medical Sciences 2783-2031 40 3 2018 08 06 The Brain Activity Patterns (Absolute power of delta, theta, alpha and beta bands) in Children with Different Subtypes of Epilepsy and Children with Attention Deficit Hyperactivity Disorder: A Comparison Study 97 104 EN Akram Velaei Oskouei https://orcid.org/0000-0002-0913-0827 Gholam Reza Chalabianloo Journal Article 2016 05 24 2016 08 17 Background: Quantitative Electroencephalography (QEEG) is a useful tool to identify and investigate the difference in the brain activity of patients. The aim of the present investigation was the comparison of Difference in brain activity patterns in children with different subtypes of epilepsy and children with attention deficit hyperactivity disorder. Methods: The current investigated population included all of ADHD and epilepsy children that were visited by psychotherapists and neurologists in Tabriz in 2014.72 children (37 ADHD children and 35 epilepsy children) were selected through aimed sampling method with clinical interview by psychotherapists, neurologists and also by using children pathological symptom scale(CSI-4).The brain activity patterns in each group were recorded by QEEG and were compared with each other. Results: There was a significant difference between absolute power of the delta (p<0/001) theta (p<0/05), alpha 2(p<0/05) and beta1 bands (p<0/05) in epilepsy and ADHD groups; but the difference between alpha1 (p<0/05), beta2 (p<0/05) and beta3 (p<0/05) bands in two groups was not significant. Conclusion: There was a difference between brain activity patterns in children with subtypes of epilepsy and children with attention deficit hyperactivity. So, using QEEG for exact diagnosis is recommended.