alpha rhythm
alpha wave

Alpha waves do not start to appear until three years of age.

But alpha waves are only part of the brain's frequencies.

The first natural rhythm he documented was what would become known as the alpha wave.

They further state that most meditation is dominated by alpha waves.

Alpha waves occur in the brain and are associated with relaxation.

He couldn't, for her alpha waves lacked the critical spike.

Alpha waves are reduced with open eyes, drowsiness and sleep.

The alpha waves aren't dangerous until they pass through the shields.

Berger gave the most pronounced rhythm the name of alpha wave.

After a while, if nothing visually new is presented, the alpha wave reappears.