Alpha wave scattering in the human brain and its effect on behavior

Background and Aim : Alpha waves were discovered by German neurologist Hans Berger. The inventor of the EEG itself. Hans Berger was a German psychiatrist he is the best known as the inventor of electroencephalography (EEG) a method for recording brain waves. Using the EEG he was also the first to describe the different waves or rhythms which were present in the normal and abnormal brain, such as the alpha wave rhythm (8-12 HZ). Alpha wave are present at different stages of the wake- sleep cycle. The most widely research is during the relaxed mental state where the subject is at rest with eyes closed but is not tired or asleep. Alpha wave scattering difference in emotional indication and can find the trace of alpha in some disorder like MD and fibromyalgia.Methods : current study adopted systemic review method to validate different roles of alpha wave in the brain. Three English databases (pub med, web of science, EBSCO) and one chines (CNK library) and google scholar for Iranian research were searched up to October 2019 for eligible literatures.Results : Studies about alpha activity, exploring relaxing effects and creativity. Through results showed asymmetry alpha activity in left hemisphere and right hemisphere can make difference in emotional indication and extroverting or introverting, also shown connection between alpha activity and depression.Conclusion : Alpha wave scattering in the brain could make different effect on our behavior. By EEG recording from frontal parietal and central lobes can find differential diagnosis. Alpha wave in occipital lobe and recording alpha peak from (Oz, O1, O2) can show us clients sharpness, also by using neurotherapy method on alpha wave we can reduce symptoms of disorder like depression.

کلیدواژه ها:

alpha ، alpha peak ، hemisphere ، behavior