alpha rhythm

(redirected from alpha frequency)
Also found in: Dictionary, Thesaurus, Medical.

alpha rhythm

[′al·fə ‚rith·əm]
(physiology)
An electric current from the occipital region of the brain cortex having a pulse frequency of 8 to 13 per second; associated with a relaxed state in normal human adults.
References in periodicals archive ?
Studies focusing on age-related changes in elderly subjects have consistently found a general slowing of the EEG with a decrease in power particularly in the upper alpha frequency range (e.
We expect that the predicted differences in the theta and alpha frequency range hold true for memory, but not for calculation performance.
Analysis of the alpha frequency band for the visual imagery task compared to baseline
Analysis of the alpha frequency band for the movement imagery task compared to baseline