Beta Waves

Beta Waves, sometimes also called the beta rhythm, is the frequency of the electrical activity in the brain that falls between 12 and 30 Hz and is the state that is associated with normal waking consciousness. These brain waves are classified as “low” and “high” amplitudes. When the mind is busy, active or anxious the low amplitude beta waves show up with multiple and varying frequencies.

You can learn more about beta waves, consciousness, and sleep here

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History of Psychology
History of Psychology