theta wave


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Related to theta wave: beta waves

the·ta rhyth·m

a wave pattern in the electroencephalogram in the frequency band of 4-7 Hz.
Synonym(s): theta wave
Farlex Partner Medical Dictionary © Farlex 2012

theta wave

n.
1. An electrical oscillation occurring in the human brain at a frequency of about 4 to 8 hertz or less as recorded on an electroencephalogram, possibly associated with memory and navigation.
2. A similar brain wave occurring in rodents chiefly in the hippocampus, having a frequency range of about 4 to 10 hertz and associated with a state of alert arousal. In both senses also called theta rhythm.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

the·ta rhythm

(thā'tă ridh'ŭm)
A wave pattern in the electroencephalogram in the frequency band of 4-7 Hz.
Synonym(s): theta wave.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
References in periodicals archive ?
This is achieved by increasing sensory motor rhythm (SMR or low beta waves) and lowering theta waves (Wilson, Thompson, Thompson, & Peper, 2011).
Referring to Theta / Betha training, a positive impact can be observed, so through this the Theta / Beta tax was reduced (Bakhshayesh et al., 2011) or the presence of theta waves are decreased and Betha waves are increased (Gevensleben, Holl, Albrecht, Vogel, et al, 2009; Gevensleben, Holl, Albrecht, Schlamp, et al, 2009,..
Palmer' noted a prevalence of theta waves in volunteers who he had taught to have OBEs at will through the use of relaxation and suggestion.
High theta waves immediately before being prompted to remember an item were associated with better performance.
Using the latest scientific technology from Australia, known as the Mind Switch, a person can be linked up to a set of wires which record alpha, beta, and theta waves in the brain.
In contrast, theta waves are associated with enhanced creativity, sensory integration, and altered states of consciousness.
Wallace et al[15] has reported an increase in the intensity of alpha waves and occasional appearance of theta waves for transcendental meditation (TM).[16] Kasamatu and Hirai[6] also reported on EEG changes as part of the physiological change associated with Zen meditation in well-trained performers of this discipline.
Now, HUMENA is introducing new, Theta Waves synchronous meditation called "DEEP." It is dedicated to the deep meditation and deep relaxation experience.
With the use of a portable EEG (electroencephalogram) that measures the electrical activity of the brain, he showed that after the nature encounter, lesser energy was emanating from the midline frontal theta waves. It was a good outcome, indicating that the brain was not exerting lots of effort to solve a problem.
Considering variations, EBB was defined as low-amplitude bursts of rhythmic sharp beta waves of 20-30 Hz that were superimposed on low or moderate-amplitude delta waves of 1-4 Hz or theta waves of 4-7 Hz that could be rhythmic.
Those who woke during REM sleep and successfully recalled their dreams were more likely to demonstrate a pattern of EEG oscillations called theta waves in frontal and prefrontal cortex areas - the parts of the brain where our most advanced thinking occurs.
* In the male subject only, Tart noted a high level of theta waves.