Mind Machine

Electronic devices intended to mess with your brain patterns, mimicing the effects of long-term Meditation (or drug use).

if you are interested in meditation, hypnosis, or deep relaxation as means for stress reduction and self improvement, you will love the mind machine experience

http://www.mindmachines.com/

Mind Machines can change your mind state. Your brainwaves shift and follow certain patterns as you perceive them. Our machines gently shift your brainwaves where you want them by stimulating your senses with beautiful patterns of light & sound.

2011 kit https://makezine.com/projects/the-brain-machine/

including Sensory Deprivation Tank

Binaural Beats http://en.wikipedia.org/wiki/Binaural_beats