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WORLD HOSPITAL DIRECTORY
WHD International Journal of Medical & Health Science
Author and Copyrights: Dr Mariappa Babu Baskar @ World Hospital Directory
Title:
Brainwaves Part 1 - Frequencies
Word Count:
518
Summary:
Scientist and NLP have proven that the brain is an electrochemical organ; researchers have hypothesized that a fully functioning brain can generate as much as 10 watts of electricity.
Article Body:
Scientist and NLP have proven that the brain is an electrochemical organ; researchers have hypothesized that a fully functioning brain can generate as much as 10 watts of electricity.
The more conservative scientist calculate that if all 10 billion interconnected nerve cells discharged at one time that a single electrode placed on the human scalp would record something like five millionths to 50 millionths of a volt. If you had enough scalps hooked up you might be able to light a flashlight bulb.
Electrical activity emanating from the brain is displayed in the form of brainwaves. There are four categories of these brainwaves, ranging from the most activity to the least activity.
The most intriguing part of all this is you can actually stimulate the brain with sound and light to produce certain brainwaves, which many agree will produce certain benefits. Before we get into all that; let�s first review how we measure brainwaves and what brainwaves are common.
To measure the brainwaves a device call an EEG is used. The EEG (electroencephalograph) measures brainwaves of different frequencies within the brain. Electrodes are placed on specific sites on the head to detect and record the electrical impulses within the brain.
Alpha (8-12 Hz)
Alpha waves are those between 7.5 and 13(Hz). Alpha waves will peak around 10Hz. Good healthy alpha production promotes mental resourcefulness, aids in the ability to mentally coordinate and enhance overall sense of relaxation and fatigue. In this state you can move quickly and efficiently to accomplish whatever task is at hand. When Alpha predominates most people feel at ease and calm. Alpha appears to bridge the conscious to the subconscious.
Beta (above 12 Hz)
Beta activity is 'fast' activity. It has a frequency of 14 and greater Hz. It reflects desynchronized active brain tissue. It is usually seen on both sides in symmetrical distribution and is most evident frontally. It may be absent or reduced in areas of cortical damage.
Delta�(0.1 to 3 Hz)��
The lowest frequencies are delta. These are less than 4 Hz and occur in deep sleep and in some abnormal processes also during experiences of "empathy state". Delta waves are involved with our ability to integrate and let go. It reflects unconscious mind.
Gamma (above 36 Hz)
Gamma is measured between 36 44 (Hz) and is the only frequency group found in every part of the brain. When the brain needs to simultaneously process information from different areas, it�s hypothesized that the 40Hz activity consolidates the required areas for simultaneous processing. A good memory is associated with well-regulated and efficient 40Hz activity, whereas a 40Hz deficiency creates learning disabilities
Theta (4-8 Hz)
The next brainwave is theta. Theta activity has a frequency of 3.5 to 7.5 Hz and is classed as "slow" activity. It is seen in connection with creativity, intuition, daydreaming, and fantasizing and is a repository for memories, emotions, and sensations. Theta waves are strong during internal focus, meditation, prayer, and spiritual awareness. It reflects the state between wakefulness and sleep. Relates to subconscious.
We offer a CD that contains combinations of these frequencies at www.countrybee.com We will go further into brainwaves in the next part of this series.
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