any of the electrical waves from the parietal and occipital regions of the brain, having frequencies from 8 to 13 hertz: a sign of relaxation, since they indicate a lack of sensory stimulation in a conscious person
"alpha wave." YourDictionary, n.d. Web. 16 September 2018. <http://www.yourdictionary.com/alpha-wave>.
alpha wave. (n.d.). Retrieved September 16th, 2018, from http://www.yourdictionary.com/alpha-wave
An electrical oscillation occurring in the human brain at a frequency of about 8 to 13 hertz as recorded on an electroencephalogram, associated with a state of relaxed wakefulness. Also called alpha rhythm .