- Ben Fuchs
The brain is an electrical generator endlessly producing and emitting streams of energy. And no mere random chaotic emanations of energy are these.
Rather, they are more akin to the organized flow of water on the on the surface of the ocean. Scientists actually refer to the movements as waves. They measure their motion and patterns on a device called an EEG (electroencephalogram).
Like all waves, the ones produced by the brain ebb and flow. Electrical bursts “fire” and then cease firing, essentially blinking on and off. The amount of times a burst of brain electricity and its subsequent cessation, turn on and off in every second is called a “cycle” and is measured as “cycles-per-second” (CPS). The number of cycles-per-second is referred to as the “frequency”. One that fires and stops firing, or cycles once a second, is said to have a frequency of one. If flow and ebb occur twice a second the frequency would be 2, three flows and ebbs, or “cycles-per-second” would have a frequency of 3 and so on.
The energy emitted by the brain ebbs and flows at various frequencies throughout the day and ranges from a slumberous 1 to a frenzied 100 CPS. Researchers divide this range into five categories, each associated with its own characteristic subjective qualities.