Brainwave entrainment

The basic idea of brainwave entrainment is to use an external periodic stimulus to cause wave1brainwave frequencies to fall into step with it at a frequency corresponding to the intended brain-state (for example, to induce sleep or meditative states). There is good evidence that the human brain has a tendency to change its dominant EEG frequency towards the frequency of a dominant external stimulus. Such a stimulus may be aural, as in the case of binaural or monaural beats and isochronic tones,or light (visual), or a combination of the two with a mind machine.

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