Alpha waves are neural oscillations in the frequency range of 8–12 Hz arising from synchronous and coherent (in phase/constructive) electrical activity of thalamic pacemaker cells in humans. They are also called Berger's wave in memory of the founder of EEG.
Alpha waves are one type of brain waves detected either by electroencephalography (EEG) or magnetoencephalography (MEG) and predominantly originate from the occipital lobe during wakeful relaxation with closed eyes. Alpha waves are reduced with open eyes, drowsiness and sleep. Historically, they were thought to represent the activity of the visual cortex in an idle state. More recent papers have argued that they inhibit areas of the cortex not in use, or alternatively that they play an active role in network coordination and communication. Occipital alpha waves during periods of eyes closed are the strongest EEG brain signals.
An alpha-like variant called mu (μ) can be found over the motor cortex (central scalp) that is reduced with movement, or the intention to move. Alpha waves do not start to appear until three years of age.
... causing false signals to be interpreted as healthy alpha waves while the patient's brain that is assumed to be still living is in fact, long dead ... EEG readings do look pretty similar to a normal human alpha rhythm ... Alpha waves are observed when a patient is awake and resting with eyes closed, and in some kinds of sleep and reversible coma ...
... Alpha Wave Movement (established 1992) is the electronic music project of Gregory T ... Alpha Wave Movement's musical style can be considered ambient, New Age, some space rock, and the classic 1970s period German style electronic music otherwise known as Berlin school and the ambient aesthetics ... Releases such A Distant Signal and Terra have more ambient space elements than other Alpha Wave Movement releases ...
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