Research Electrophysiological correlates of higher states of consciousness during sleep Sleep. 1997 Feb;20(2):102-10. Mason LI, Alexander CN, Travis FT, Marsh ... Read More
Research Psychophysiological correlates of the practice of Tantric Yoga meditationArchives of General Psychiatry. 1978 May;35(5):571-7. Corby JC, Roth WT, Zarcone ... Read More