AwareofAware

Evolving news on the science, writing and thinking about Near Death Experiences (NDEs)

Archive for the tag “science”

Marshalling “The Spirit” for the Martial study

Thanks Paul for letting me know about this IANDS podcast with Charlotte Martial, the consciousness researcher from Liège University in Belgium (Liège is a top European university – when I was doing my Ph.D. I collaborated with them on anti-viral projects)

Firstly, it is not a great interview as the interviewer doesn’t seem to understand her position, or properly listen to her. She is a physicalist, and nothing that she has seen in her research has changed that position, so when he asks her at the end about the shift in understanding to a post materialistic world, he is barking up the wrong tree! As a result he doesn’t really challenge or probe her position, which is disappointing. Anyway, key relevant points:

She refers to her publication back in May last year that we discussed previously that proposes a model explaining NDEs physiologically. She makes the same fundamental mistake as Borjigin from Michigan by stating that the observed EEG activity is occurring during Cardiac arrest (CA). It is not. The EEG and neurotransmitter data she is referring to in humans is all before CA in patients who were in comas and whose EEG were isoelectric by the time they entered full CA. In rats there was EEG for maybe 20-30 seconds post CA. After that, nothing. In none of these studies was any patient recollections collected, so everything is speculative at best, but in reality it is worse than that.

There is no brain activity during CA, and therefore no observations can be made or new memories can be formed in the brain. Her hypothesis is that the NDE memories are created during this period (prior to CA) when the brain becomes hyperactive while starved of oxygen, but that theory has been debunked over and over again, not least in instances of sudden CA where there was no period of oxygen deprivation in the brain prior to CA. I have always said that the activity they have observed when patients or rats were basically suffocated, is the brain screaming at every system in the body to get oxygen moving around, but these are very different circumstances to the vast majority of NDEs that follow a different path, usually involving sudden death and CA, followed by immediate loss of consciousness. This is why more and more I am of the view that Sam Parnia’s acronym – REDs – recalled experiences of death, rather than Near Death, are superior when it comes to discussing these phenomenon in a research context.

They also talked about her ongoing AWARE-like study and why nobody has seen the hidden targets (they ignored the HCP validated OBE in AWARE I or the fact that so few even survived to be interviewed). Her explanation is that is scientifically impossible to observe things outside of ourselves while unconscious, so they will never see a hidden target. She said that the scientific explanation for OBEs is that the brain is conflating observations made before becoming unconscious with false memories of events – they are overlaying what they remembered about the environment prior to CA with new memories that didn’t happen. Of course when you look at some of the OBEs reported over the years, particularly those in the Titus Rivas book, the Self Does Not Die, this explanation falls apart. 

Her AWARE-like study is ongoing, but she doesn’t expect there to be a hit for this reason. She is open, but her fundamental baseline position is that there is no afterlife…let’s see if we can change that!

CALL TO ACTION – for those of you who believe in the afterlife and God I am going to ask you to do something unsual…I am asking you to pray. If you are Christian, then pray specifically to Jesus, but if you have a general belief, then pray to God/the great spirit/the being of light etc. This is really important.  I think that while Charlotte Marshall is obviously a materialist, I also think she is open to new evidence, but the only evidence that would challenge her worldview would be scientifically validated empirical evidence. It is a shame that she does not regard the testimonies of hundreds of patients and attending HCPs of observations of events/objects that could only be observed if the person’s consciousness had actually left the body as valid empirical evidence, but she is a scientist who seems only to regard scientifically produced evidence as valid. To this end she has created an experiment similar to the AWARE study (but really with the objective to disprove OBEs), and the only way that her worldview would shift is if there is a hit in her study. I say it is set up to disprove NDEs being real because she is only intending to recruit 100 patients, and as we know from previous studies, this is nowhere near enough. However, I mention in my book that it would delicious irony if the study set up by a sceptic to disprove NDEs would be the one that actually had a hit. Well let’s pray for it. I want you to pray the following, and try to remember to do it frequently:

“Dear God/Jesus/etc, I know you are real, I know that my soul will survive death, but so many people don’t and that this is a bad thing for them and for the world as their thinking is only focused on the material and passing. At the moment there is no scientifically validated evidence supporting the understanding that the consciousness can survive death, and that without such evidence it is hard to convince a materialistic world this may be true, therefore please allow at least one person in Charlotte Martial’s study, who has a full CA with no ECG and EEG, to observe the hidden target (s)and recall it accurately, and for this person’s testimony to be validated and presented publicly by Marshall.”

Simple. I believe in the power of prayer, and I believe that while it is vital that free choice is maintained, at the moment the lack of a scientifically validated OBE presents a very real barrier for some who might otherwise be inclined to believe. Hardcore sceptics will still dismiss it, but for those who have “eyes to see and ears to hear” it may be enough to spark their wider curiosity. 

“God, please throw us a bone!”

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Do Rats Have NDEs?

Apologies for the weird image, but this was my first attempt at using AI!

This study looks at what happens to rat brains around the time of death.

The main difference between this and the previous (infamous) rat study published by Borjigin in 2013 is that it analyses what happens through different layers of the brain to see if activity occurs at deeper levels for differing periods of time. The short answer to the question of whether there are differences is that for the most part, and in terms of differences that would be important to our area of interest – conscious activity – there are no major distinguishable differences in the timings and nature of initial activity in the different layers of brain immediately after death.

The diagram shows the rough timings with ECoG vs heart rate and blood oxygen levels (SpO2). ECoG (electrocorticogram) is invasive and uses probes that penetrate the exposed surface of the brain, as opposed to EEG – (electroencephalogram) which uses sensors placed on the scalp. This enables the study to identify electrical activity deeper in the brain.

What we see is that about 30 seconds after the removal of oxygen the heartbeat slows quickly to about 10% of its normal rate, then within about another 30 seconds normal brain activity ceases and the ECoG flatlines or becomes “isoelectric”. During this 30 seconds after CA it is plausible that conscious activity could occur. This is the claim made in the Bojigin study that got the materialist community so excited since it could be argued that NDEs occurred during this period. This paper references that discussion without asserting any new conclusions, or indeed using the findings from this study to confirm those conclusions. They have nothing to say about rats having NDEs. Well done, that is good science.

About a minute after brain activity has stopped, brain cells (neurons) undergo depolarisation (WAD). This basically means the cells move to a a non-functional, but recoverable state. Prior to this they are in a state of readiness and functional, but are not functioning. During this wave of depolarisation there is a slow wave electrical signal. This is not associated with conscious activity and is just a marker of the change in electrical state of the brain. Unlike the initial activity, this wave is not synchronous across all layers, i.e. it occurs like a wave spreading across the layers. Resuming the flow of oxygen allows for the brain to slowly recover activity.

Other than showing that the changes in brain activity that occur immediately after death are uniform through all layers of the brain, they also demonstrated that subsequent depolarisation is triggered in a set of neurons in a specific layer, and the WAD spreads from this locale. This is all very interesting if you are neurobiologist, but what does it mean for NDEs?

Unfortunately there were no able to recall awareness in follow up interviews, hence the lack of statements on Rat NDEs. As a result this study does not provide any new data to inform us about the viability of conscious activity immediately around the time of death. We knew that EEG activity that may be associated with consciousness persisted for about half a minute after CA from the previous rat study and the coma patients who had their life support withdrawn. Without any reports from the rats or dead coma patients of recollections of AWARENESS, it is impossible to correlate this activity with NDEs.

Let’s for a moment consider the wider implications of this in light of Parnia’s disinhibition hypothesis. As I have said before I have no beef with the hypothesis itself – namely that at some point after death the brain enters a different state in which consciousness is able to access previously unknown dimensions of reality. It may even be that dissociation occurs and the consciousness and brain part company and that this may be associated with specific markers observed on EEG – in fact if you adhere to the dualist philosophy, then it makes perfect sense. My beef is…well read previous posts! Presumably the brain would dissociate or become disinhibited while activity is still observed on the EEG or in this case ECoG, in which case it must happen in the first 30 seconds after CA (and in the absence of CPR or alternative life support). It is possible that full dissociation occurs during the WAD phase, but there are no markers of consciousness associated with this.

One of the limitations of the AWARE II study was the fact that on average it took over 4 minutes after CA for the specially designed crash carts to reach the resuscitation suites and another minute to get ready. This means that the first moments of any OBE, which presumably begin 30 seconds, or at the latest, a minute after CA, would be missed. In fact it is highly likely that if the OBE starts immediately after the EEG stops, then the crash cart probably arrives after the consciousness has been sucked up the tunnel!

Another post on a paper reviewing psychedelics and NDE-like experiences will appear before long. In the meantime, if you didn’t buy my book previously, then I have uploaded an updated version that contains an analysis of the AWARE II publication from last year, along with 7 OBEs that were verified by HCPs that are in my view every bit as convincing as iPad verified OBE – I am running a free promotion for 3 days on the Kindle version. It is available in all Amazon markets:

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