Difference between revisions 107585898 and 107585900 on dewiki

{{Dablink|For the 3D platform video game, see [[Alpha Waves]].}}

[[Image:eeg alpha.svg|thumb|Alpha waves |400px|right]]
'''Alpha waves''' are [[Electromagnetic radiation|electromagnetic]] oscillations in the frequency range of 8–12 [[Hertz|Hz]] arising from ''synchronous'' and ''coherent'' (''in phase'' / ''constructive'') electrical activity of [[Human thalamus|thalamic]] pacemaker cells in humans(contracted; show full)

Alpha wave biofeedback has gained notoriety for having some successes in humans for seizure suppression and for treatment of depression.<ref>Ulrich Kraft. Train Your Brain-Mental exercises with neurofeedback may ease symptoms of attention-deficit disorder, epilepsy and depression--and even boost cognition in healthy brains. Scientific American. 2006</ref>

==
Different tTypes of alpha waves==

Some researchers posit that there are at least three different forms of alpha waves, which may all have different functions in the wake-sleep cycle.

Alpha waves are present at different stages of the wake-sleep cycle. The most widely-researched is during the relaxed mental state, where the subject is at rest with eyes closed, but is not tired or asleep. This alpha activity is centered in the occipital lobe, and is presumed to originate there, although there has been recent speculation that it instead has a thalamic origin.<ref>Domino E. F., Ni L. S., et. al(2009(contracted; show full)
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