alpha waves


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Related to alpha waves: Theta waves, beta waves

alpha waves 

Rhythmic oscillation in electrical potential occurring in the cortex of the human brain when awake and at rest. The rate of oscillation is 8-13 Hz. Syn. alpha rhythm. See resting membrane potential.
References in periodicals archive ?
Review of the assessment will evaluate the presence and nature of various brain waves, but will pay special attention to alpha waves due to the relationship of this particular brain wave with peak performance for the reasons mentioned earlier.
Stroop Alpha Waves: Initial alpha waves recorded during Stroop testing at baseline ranged from 7.84-167.87 mV with an average of 39.69 +/- 5.51 mV.
(1) For all the phases of [f.sub.1], [f.sub.2], and [f.sub.3], Alpha waves ([B.sub.1]) are decreased significantly and transferred into Theta wave ([B.sub.3]) and Delta wave ([B.sub.4]); that is, the biofeedback fabrics in conditions of 3 kinds of flashing frequencies for all samples are all effective in enhancing sleeping sense.
Effect of MO extract on brain electrical activity of colchicine infused rats (Over duration of 4 h) Groups Alpha waves (per epoch or 300 mm) Sham control 3.17 [+ or -] 0.38 MO + control 3.92 [+ or -] 0.49 Colchicine 2.51 [+ or -] 0.24 *** (20.82) MO + colchicine 2.49 [+ or -] 0.16 Groups Beta waves (per epoch or 300 mm) Sham control 11.00 [+ or -] 0.45 MO + control 12.67 [+ or -] 1.02 * (15.18) Colchicine 2.75 [+ or -] 0.11 *** (75) MO + colchicine 6.83 [+ or -] 0.70 (###) (37.8) Groups No.
"Alpha waves are associated with relaxation, with being very calm, very zoned out.
Alpha waves are common during physical and mental relaxation, or during fantasising, daydreaming and visualisation.
Many patients with fibromyalgia have a specific sleep disturbance involving the intrusion of alpha waves into slow wave sleep.
Many patients with fibromyalgia have a specific sleep disturbance involving the intrusion of alpha waves into slow wave sleep Tricycic antidepressants provide temporary restoration of normal sleep patterns, but this improvement is often short lived.
Gamma waves are present during sound sleep; theta waves indicate dozing or sleeping; beta waves are present during an awake, excited state and alpha waves signify an awake, relaxed state.
During an interview, Lloyd (Bobby Harwell) relates how he helped invent a device in the late '40s that could pick up alpha waves generated by humans, and how he was recruited with his colleagues to further develop the device in the small Texas town of Wicksboro.
The alpha waves, known as the good waves - prominent when a person is relaxing - are what triggers the switch.
For the analysis of EEG tracings, attention was given to the appearance of alpha waves which are associated with a relaxed wakefulness correlated with a general tranquil, pleasant feeling.[2] EEGs were classified by duration of alpha waves in continuous 10 seconds as one unit.