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alpha activity

    0.03 sec.
alpha activity
Sleep disorders The presence of alpha waves or alpha rhythm in an EEG. See Alpha rhythm.


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Events in the alpha frequency range correspond to continuous alpha activity during waking and to small amplitude, sometimes spindle-like activity in NREM sleep.
Kubitz and Mott (1996) found no change in either alpha or beta activity from pre-to post-exercise, but did observe reductions in alpha activity and increases in beta activity during exercise.
The beneficial changes observed during SKY treatment of depression are: i) increase in the amplitude of alpha activity in the brain, ii) a central midline theta activity, iii) the resting EEC demonstrated an increased focal beat activity, iv) increase in galvanic skin resistance (GSR value), v) an increased coherence in the 6th cycle predominantly in the frontocentral regions in the beta band and posteriorly in the alpha band.
 
 
 
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