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Alpha waves are electromagnetic oscillations in the frequency range of 8–12 Hz arising from synchronous and coherent (in phase / constructive) electrical activity of thalamic pacemaker cells. They are also called Berger's wave in memory of the founder of EEG. Alpha waves are one type of brain waves detected either by electroencephalography (EEG) or magnetoencephalography (MEG) and predominantly originate from the occipital lobe during wakeful relaxation with closed eyes. Alpha waves are reduced with open eyes and drowsiness and sleep. They are thought to represent the activity of the visual cortex in an idle state. Occipital alpha waves during periods of eyes closed are the strongest EEG brain signals. They usually can be detected with the naked eye. An alpha-like variant called mu (μ) can be found over the motor cortex (central scalp) that is reduced with movement, or the intention to move. Alpha waves do not start to appear until three years of age. From Wikipedia under the
GNU Free Documentation License From Yahoo Image Search: "Alpha wave"  yogademo.com admin Wed, 09 Jun 2010 04:38:15 GM Many of our customers have requested an extension of the program . Alpha Wave. Audio. Many use this type of audio to increase for a.  blogs.monografias.com Felix Larocca ue, 13 Jul 2010 14:53:52 GM If the flash coincided with the peak of a . wave. in the . alpha. or theta frequencies, they saw it, but if it occurred when the . wave. was at its trough, they didn't (Journal of Neuroscience, vol 29, p 7869). That fits, says Busch, ...  alphawavedigitalmedia.com Greg Epstein ue, 15 Jun 2010 14:31:49 GM When the electrical giant, had suffered network can save time 3D TV Sony 3D TV will be the next Walkman miracle? Sony CEO Howard Stringer plan to. From Google Blog Search: "Alpha wave"  news.google.com Airlock Alpha Nikolaj Coster-Waldau is among a new wave of cast additions for HBO's epic fantasy pilot "Game of Thrones. ... and more » news.google.com Psychiatric Services (subscription) Cronbach's alpha coefficients were then calculated to measure the reliability of each dimension in terms of internal consistency. ... and more » news.google.com n-tv So wurde weitgehend unbeachtet von den Medien Deutschlands erster Offshore-Windpark Alpha Ventus teilweise in Betrieb genommen. 45 Kilometer vor der Kueste ... and more » From Google News Search: "Alpha wave" Is there a PC game which relies on Alpha Brainwaves? Q. Many years ago, at an IT exhibition, I saw a programme being demonstrated where you wired the PC up to your head and you could make a fish move across the screen if your brain produced alpha waves. The purpose of it was to teach you how to be calm and stress-free. Does anything like this still exist? Asked by kitty - Tue Aug 21 18:02:45 2007 - - 1 Answers - 0 Comments A. Brain interfaces are still very experimental. I doubt anything like this exists in the consumer sector. The closest thing you'll find I know of is a Wii controller. I've seem that stuff too and it's amazing. It will likely be applied for those in need before it reaches the private sector. I know they are working on stuff like this for quadriplegics to help them gain independence. I don't have the link but I know they are making progress. Ask any Neurologist and they'll tell you they are in their infancy in their field compared to the rest of modern medicine. Scientists and doctors still don't have a strong understanding of how the brain works. Look at anti-depressant ads, "the exact interaction of this medicine is not known". Answered by Christopher M - Fri Aug 24 21:35:09 2007 Alpha brain waves - How long ? Q. Hi all, i now know that the brain is in "alpha mode" just before sleeping and after waking up. However, does anyone know for how long the brain is in alpha mode before sleeping and after waking up? Thanks. Asked by James W - Thu Nov 27 05:20:13 2008 - - 1 Answers - 0 Comments A. See my profile! Take a look at this. Alpha waves are usually associated with relaxation, so it depends on who long a person is relaxed for, and if anything in their environment alters their consciousness. Answered by PSYCHOLOGIST (J E B [Glos]). - Thu Nov 27 13:01:46 2008 After flying from California to New York, Arthur experienced a restless, sleepless night. His problem was most?
Q. After flying from California to New York, Arthur experienced a restless, sleepless night. His problem was most likely caused by a disruption of his normal: A)change blindness. B)circadian rhythm. C)hypnagogic sensations. D)alpha wave patterns. Asked by Lee - Tue Jun 23 21:27:50 2009 - - 2 Answers - 0 Comments From Yahoo Answer Search: "Alpha wave" |
