The Ganzfeld effect..?

Has anybody ever tried this or even heard about it?

http://mindhacks.com/2008/11/17/ganzfeld-hallucinations/

I want to try this tonight... If anybody had experience with this the only question i really have is can you control when it ends by just taking the "goggles" off, or would you not be able to comprehend doing so..

I've done it. It's a form of sensory deprivation. For me it made it a lot easier to get into deep meditative states. Within 30 minutes I was inside of dream scapes almost to the point of complete vividness. I ended up falling asleep.

But I know that I was laying down I haven't tried it sitting upxD I just meditate every day

that sounds pretty crazy. i wonder what one would think if they walked in on me with ping pong balls taped to my eyes with head phones in not being able to hear them lOl