(2019-06-10, 03:51 PM)Raf999 Wrote: Anyway, what is the exact meaning of "seizures" on the EEG? How much brain/EEG activity would be needed from a materialistic point of view to allow consciousness and recollection of events happened during the CA, allowing for false visual memories to be formed after waking up?
I listened to that part of the video - as far as I can tell, this would be a new finding. Certainly patients have epileptiform discharges post-cardiac arrest if they have experienced damage, such as anoxic (lack of oxygen) brain damage. But previous studies of EEGs done during cardiac arrest, haven't mentioned epileptiform activity. Those studies have shown a variety of EEG changes, from no activity to activity which may be adequate for recollection and/or awareness (depending upon type of medical event and concurrent resuscitation).
He doesn't go into any details about how they are measuring the EEG. The picture on the slide looks like it could be a BIS monitor, and I don't know how epileptiform activity would show up on that, since the output is usually a numerical measure of "awareness" based on an algorithm. They must also be getting the lead-by-lead EEG activity from it, if it is a BIS.
I don't know what all the abbreviations used in the slide refer to. Usually I would look for "ED" on the end of an abbreviation for "epileptiform discharges", but maybe he uses something different (as a Brit). "PD" should be "periodic discharges", "RDA" is "rhythmic delta activity", "S&W" "spike and wave", "Bsupp" might be "bilateral suppression". I'm not sure about DQPD, but I would guess that PD at the end also refers to periodic discharges. PDs and RDAs share features with EEG seizures, so he may be referring to those as "seizure and seizure-like activity". FWIW, the number of PDs, RDAs, and DQPDs adds up to 10%.
Anyways, it looks like they are doing EEG on everyone (yay!), so if there is recollection, there should be able to report on corresponding EEG activity for each case, which is very exciting. If NDE/OBEs are associated with those who fall into the MVA/Bsupp region, then it would really help support the proponent belief that these events occur during no brain activity. I think this is going to be the most important paper coming out of the AWARE study so far.
Linda