Is there a source or reference giving details of this new research, please?
If you want academic references you can see the work by Dr. Adrian M Owen The University of Western Ontario from the The Brain and Mind Institute. There are many many papers on fMRI readings from coma patients: Measuring consciousness in coma and related states Carol Di Perri
The science is not on the side of non-physical consciousness. All the NDE research says is "We cant measure brain activity with these tools".... thats it, which does not indicate at all there is no brain activity, only no conscious brain activity. My explanation provided in the video covers this... they are not conscious they just remember the sense datum collected by the subconscious as an explicit memory giving the illusion its was a conscious experience.