You wrote: "I would be very interesting in reading more on the experiment where neurons were separated and yet still stimulated by distant interaction one to the other. I googled it but could find nothing concrete. Is there a link to this research?"
This was discussed in Chapter 2 of Volume I in my Gnosis series with respect to 'Local Reality', which is a shorthand way to describe how people normally view the world. It is based on three core assumptions: First, that objects separated in time and space have no connection with each other. Second, that nothing travels faster than the speed of light. And, third, that time flows forward, rather than backward.
These three core ideas of Local Reality have been tested via a mathematical inequality called Bell’s Theorem. And the pattern of results has shown that only one of the three assumptions can been confirmed: Namely, the belief that time appears to flow forward even at great scales of microscopic magnification.
However, research has failed to verify the first two commonly accepted beliefs. In particular, objective findings have shown separated objects to be inter-connected in some unseen fashion (e.g., 2 oppositely spinning electrons that had passed as a pair through a gate). And research has proven that information somehow does travel faster than the speed of light. (My theory is that this occurs via dark matter networks since scientists study ONLY 4% OF THE UNIVERSE, namely visible, physical matter -- [hubblesite.org].)
So, research on Bell's Theorem (Inequality) is a productive place to start: [en.wikipedia.org]. Also, Scientific American has had some great articles on Bell's Theorem research over the years, and their archives are superb.