beta wave

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be·ta rhyth·m

a wave pattern in the electroencephalogram in the frequency band of 18-30 Hz.
Synonym(s): beta wave

beta wave

n.
An electrical oscillation occurring in the human brain at a frequency of about 13 to 30 hertz as recorded on an electroencephalogram, associated with a state of alert wakefulness. Also called beta rhythm.

beta wave

one of several types of brain waves, characterized by relatively low voltage and a frequency of more than 13 Hz. Beta waves are the "busy waves" of the brain, recorded by electroencephalograph from the frontal and the central areas of the cerebrum when the patient is awake and alert with eyes open. Also called beta rhythm.Compare alpha wave,delta wave,theta wave.

beta wave

An electroencephalographic deflection. Its frequency is between 18 and 30 Hz. See: beta rhythm
See also: wave