LSD guru 1960's counter-culture figure Timothy Lear is interviewed on " Later with Bob Costas" which aired on May 29th, 1991 part 1 of 2 episodes.
22:17 min
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The Beckley Foundation Scientific Program conducts cutting edge research with LSD in human subjects, explores neurophysiological similarities between LSD and the mystical experience through observing modulations in the blood supply, brainwaves and a broad spectrum of cognitive changes.