Maria Manasseina: sleep is not the absence of brain activity
The birth of electroencephalography (EEG) applied to humans dates back to the 1920s, when Hans Berger for the first time measured the difference in electrical potential between two electrodes placed on the scalp. In the following years, the instrumentation was perfected more and more, and in 1953, Aserinsky and Kleitman described the REM sleep phase […]
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