>Was there prior research to suggest this, or were they just taking a bit of artistic license to add some mysticism? Research on brainwave entrainment and biof

>Was there prior research to suggest this, or were they just taking a bit of artistic license to add some mysticism? Research on brainwave entrainment and biofeedback. They've done similar things with EEG machines, binaural beats, electric stimulation, etc... http://en.wikipedia.org/wiki/Brainwave_entrainment http://en.wikipedia.org/wiki/Brainwave_entrainment