Difference between revisions 107585895 and 107585896 on dewiki

{{Dablink|For the 3D platform video game, see [[Alpha Waves]].}}

[[Image:eeg alpha.svg|thumb|Alpha waves |400px|right]]
'''Alpha waves''' are [[Electromagnetic radiation|electromagnetic]] oscillations in the frequency range of 8–12 [[Hertz|Hz]] arising from ''synchronous'' and ''coherent'' (''in phase'' / ''constructive'') electrical activity of [[Human thalamus|thalamic]] pacemaker cells in humans(contracted; show full)ing. After the mistake was noticed by the subject, there was a decrease in alpha waves as the subject began paying more attention. This study hopes to promote the use of wireless EEG technology on employees in high-risk fields, such as air traffic controlling, to monitor alpha wave activity and gauge the attention level of the employee.<ref> U.C. Davis News and Information. Brain Wave Patterns Can Predict Blunders, New Study Finds. March 2009. </ref>

==Alpha waves in a gelatinous conductor==


An initial demonstration by Upton in Britain in 1969 attracted little notice. After moving to Canada to teach at McMaster University, he tried again in 1974 at an Ontario ICU. He connected EEG leads to a dome of Jell-O, picking lime because he "thought it would be more photogenic."Sometimes it's claimed Jell-O brainwaves are identical to a healthy adult's. That's clearly a stretch, but the Jell-O EEG readings do look pretty similar to a normal human alpha rhythm. Alpha waves are observed when a patient is awake and resting with eyes closed, and in some kinds of sleep and reversible coma. True, the Jell-O waves are a little slower and of much lower amplitude, barely within normal human limits, but that doesn't tell you much by itself. Hypoxia, encephalitis, and other medical conditions can cause reduced frequency and amplitude, as can drug use.⏎
<ref>http://www.straightdope.com/columns/read/2942/can-brainwaves-be-detected-in-lime-jell-o</ref>

March 17, 1993, technicians at St. Jerome hospital in Batavia test a bowl of lime Jell-O with an EEG machine and confirm the earlier testing by Canadian Doctor Adrian Upton in 1969 that a dome of wiggly Jell-O has brain waves identical to those of adult men and women. In 1969, Dr. Upton connected an electroencephalograph (EEG) to a dome of lime Jell-O, only to find the readings to be almost identical to those of healthy human beings.

==References==
{{reflist}}


* {{Citation | surname = Brazier | given = M. A. B. | title = The Electrical Activity of the Nervous System | year = 1970 | publisher = Pitman | place = London}}

{{SleepSeries2}}

See also: [[Binaural beats]]

==External links==
* [http://www.eegproject.com EEG Alpha waves biofeedback interactive game project]

[[Category:Medical tests]]
[[Category:Meditation]]
[[Category:Electroencephalography]]


{{Neuroscience-stub}}

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