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alpha rhythm, alpha wave
1. A pattern of slow brain waves (alpha waves) in normal people at rest with closed eyes, thought by some to be associated with an alert but daydreaming mind.
2. The normal brainwave in the electroencephalogram of a person who is awake but relaxed.
3. A pattern of smooth, regular electrical oscillations in the human brain that occur when a person is awake and relaxed.
As recorded by the electroencephalograph, alpha waves have a frequency of 8 to 13 hertz.
In electroencephalography, rhythmic oscillations in electric potential occurring at an average rate of 10 per second.
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alpha wave training
A type of biofeedback when alpha brain waves (7.5-13.5 cps) are characteristic of relaxed and peaceful wakefulness or the alpha state
In alpha biofeedback training, the subject receives information on his or her EEG as a means of achieving a state of relaxation.
In one technique, a tone sounds in the absence of alpha waves and disappears when the subject produces alpha waves.