The bottom line is that lucid dreaming depends ENTIRELY on the presence of various specific neurotransmitters in the brain, regardless of the induction technique. If the neurotransmitters are not present, LDs are not possible no matter how good your technique. It's like having a high powered car. If you don't have any gas in the tank, it ain't going nowhere. [/b]
I'm really intrigued by this. I first learned of lucid dreaming through reading an introduction to dreaming by neurobiologist J. Allan Hobson, and I've just finished a chapter of another of his books where he discusses a bit of the "brain mechanics" behind lucid dreaming. However, he does not go into the specific neurotransmitters required for this dual state of brain activation. Where might I read more about this?

Curiously, he also states that it is much easier to dream lucidly when one is young (below 40 or preferably 30), and that he himself has pretty much lost the ability (he could LD at will while younger, but now, in his 70s, cannot). I wonder how old LaBerge was when he taught himself to LD at will?

Sorry, got a bit off topic...

Barbara