Understanding Brainwaves (Electroencephalography)
Understanding Brainwaves (Electroencephalography) There has been a great deal of research complied through the decades that surrounds the topic of brain waves. In this article we are going to discuss what brain waves are and how they are measured. Psychophysics (a branch of psychology that studies the relationship between physical stimuli and the response in the brain it has on the brain.) views all matter including the human body as bio-electric magnetic matter that vibrates in waves with a specific oscillation frequency. Electroencephalography is what measures these vibrations that the brain emits. It- s the recording of electrical activity along the scalp. The vibrations are measured in cycles and they are called Hertz and can also be referred to as a frequency. For Example: If the Hz shows a low frequency then it will show low brain activity. Brain waves are broken into 5 categories: In understating brain waves it is important to know that we do not ever produce just one type of wave from the above category. Several differently brain waves are produced simultaneously.
Delta- (below 4Hz) occur during sleep
Theta- (4-7 Hz) occur during sleep/ deep relaxation
Alpha-(8-13Hz) Relaxed or Calm
Beta-(13-38Hz) actively thinking/problem solving
Gamma-(39-100Hz) experienced during meditation
Posted by admin at Thursday ~ November 11, 2011 | Comments Off
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