I suppose it is time for a "mea culpa" for not researching "enteric nervous system" with all due diligence.

When psychiatrists and psychologists talk of little-brain big-brain, they mean it in the way I intended: a small conscious segment of brain embedded in a vaster, non-cognizant brain.   (As per Heitkemper publishing that dreaming during sleep is the way that Big Brain and Little Brain do most of their communicating).

When neurologists use the same term, they are referring to the way in which the enteric nervous system is independent of the cerebellum, and acts as if it were a little brain in its own right.

On researching the psychological aspect of little-brain big-brain, I kept stumbling into references to the enteric nervous sytem, and thought that the two disciplines were using the same phraseology to describe the same phenomenom.    (Silly me).

I apologise for the confusion that my use of inaccurate terminology has caused.

And if I remove the phrase "theology explains away all that is inexplicible" from my original text, could we discuss the hypothesis posed in the rest of it?   Big-Brain Little-Brain is now accepted science for the cause of deja vu.   I cannot find any reference to the possibility that a similar sort of brain-skip could be the cause of some "religious experiences".

Thanks for your kind understanding.

BE2