Efficacy of Neurofeedback Treatment in Depression Disorder: A meta-analysis

Meta-analysis defines the rate of effect size of interventions by integrating the obtained results from different studies. The aim of the current meta-analysis was to determine the effectiveness of neurofeedback treatment in depression disorder.

Totally 10 studies from 15 studies with accepted methodology were selected and meta-analysis was done on them. The data were gathered and the effect size of each study was calculated.

The combined effect size of all indicators was found to be significant according to cohen’s table which means high effect size. The combined effect size for depression is ES=0/60 (P=0/0179), for negative thought is ES=0/407 (P=0/0559), for the rate of alpha is ES=0/701 (P=0/0122), for the ratio beta/alpha is ES=0/512 (P=0/1635) and total effect size is 0/538.

Based on the results of this meta-analysis, neurofeedback treatment based on the interpretation of Cohen’s effect size has large effect on reducing depression symptoms and normalizing the brain waves in depression disorders.