Electromagnetic oscillations in the frequency range of 8–12 Hz arising from synchronous and coherent electrical activity of the thalamic pacemaker cells in the human brain. Also called Berger’s wave.
Alpha waves are believed to arise from the white matter of the occipital lobes. They increase during periods of relaxation with eyes closed. Alpha waves are thought to represent activity in the visual cortex and are associated with feelings of calmness and relaxation. Alpha waves increase when eyes are closed and during meditation and are associated with creativity and mental coordination.