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beta wave |
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beta wave, one of several types of brain waves, characterized by relatively low voltage and a frequency of more than 13 Hz. Beta waves are the "busy waves" of the brain, recorded by electroencephalograph from the frontal and the central areas of the cerebrum when the patient is awake and alert with eyes open. Also called beta rhythm. Compare alpha wave, delta wave, theta wave. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| Tea contains caffeine, but the body reacts to it differently from coffee because of L-theanine, an amino acid in tea that he says promotes ``focused, meditative energy'' in the brain's alpha waves to counteract the fight-or-flight beta wave response to the caffeine. In addition, brainwaves of participants shifted from the more usual waking beta wave state to either alpha-theta or theta wave states; these latter states have been shown to be characteristic of deep meditation. The results of the beta wave of six waves of research identified a trust gap, around which the PLI developed a campaign to help consumers feel more comfortable in today's information economy. |
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