Alpha wave
Alpha waves or alpha rhythms were a type of neuroelectric activity present in the brains of individuals who were either relaxed but awake or in the middle of REM sleep. They could be stimulated with an alpha-wave inducer. ()

Shortly before Luther Sloan died in 2375 his alpha waves attenuated, followed by a complete neural failure. ()

In 3189, an atomic scan was performed on the brain of . The results of the scan revealed that her alpha rhythm had sinusoidal-like waves with a frequency range of 8-12 Hz. ()

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Medicine
Physiology
Sleep