Brain waves can be manipulated while in rapid eye movement (REM) sleep, a sleep stage associated with memory and cognition, a new study from the University of Surrey finds. Novel technology, using sound stimulation, allows ...
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Oscillation is the repetitive variation, typically in time, of some measure about a central value (often a point of equilibrium) or between two or more different states. Familiar examples include a swinging pendulum and AC power. The term vibration is sometimes used more narrowly to mean a mechanical oscillation but sometimes is used to be synonymous with "oscillation". Oscillations occur not only in physical systems but also in biological systems and in human society.
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