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Alpha waves
Neuroscientists distinguish between different types of brain waves based on their frequency. Alpha waves oscillate in the mid-frequency range between approximately 8 and 12 hertz. They occur, for example, in a relaxed waking state, such as when test subjects are tired or have their eyes closed, i.e., when there is no mental activity. In the brain, they originate primarily in the parietal lobe. They are also called "Berger's waves" Hans Berger, who first described them.
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Glossary
15.03.2017
