Those who claim that the brain makes the mind keep trying to push the silly idea that you are just a bunch of neural signals passing around inside your head. The scientists who make such claims typically are members of a belief community, a kind of sect of the ivory towers. When we hear such claims we are observing the speech customs of such a community. The members of belief communities often keep repeating the same old claims, which often are not justified by any robust evidence.
Head Truth
The huge case for thinking minds do not come from brains
Friday, February 20, 2026
Contrary to "Brains Make Minds" Claims, Brains Are Not Much More Electrically Active When You Are Awake
Monday, February 16, 2026
When Neuroscientists Say "Encode," Suspect It's a Load (of BS)
Neuroscientists have no credible story to tell of how a brain could learn anything. Nothing in a brain has the slightest resemblance to a device for storing or retrieving memories or learned information. Humans create various types of objects that store information and allow the retrieval of such information, such as:
(1) a notepad and a pencil;
(2) an old-fashioned cassette tape recorder;
(3) a computer with a hard drive;
(4) printed books;
(5) a smartphone or digital pad device capable of storing keystrokes.
So we know the types of things that an object needs to have in order for it be capable of doing a physical long-term storage of learned information and also be capable of rapidly retrieving information. These include things like this (a particular system does not necessarily need all of these things).
(1) The use of some type of system of encoding whereby learned information can be translated into tokens that can be written on a surface.
(2) Some type of component capable of writing such tokens to some kind of storage surface (for example, a pencil or the spray unit of an inkjet printer or the read-write head of a hard drive).
(3) Some surface capable of permanently storing information written to it (for example, paper or the magnetic surface in a hard drive).
(4) Some material arrangement allowing a sequential retrieval of learned information (for example, the binding of a notebook and the lines on its pages which facilitate sequential retrieval of the stored information, or the physical arrangement in a hard drive that allows data to be retrieved sequentially).
(5) The use of addresses and indexes that allow an instantaneous retrieval of information.
(6) Some type of device for retrieving information stored in an encoded format, and converting it to an intelligible form (for example, some computer technology capable of reading magnetic bits, and converting that to readable characters shown on a screen).
(7) Conversion tables or conversion protocols such as the ASCII code, which constitute a standard method for converting letters into numbers.
(8) Computer software subroutines or functions capable of doing things such as converting text into ASCII decimal numbers, and then converting such decimal numbers into a sequence of binary digits.
The brain has nothing like any of these things. So neuroscientists have no credible story to tell of how a brain could learn anything or recall anything. But this does not stop neuroscientists from engaging in BS bluffing, and trying to make it look like they have a little bit of understanding of something they have no understanding of at all.
The latest example of such BS bluffing is a news article on the often-erring MedicalXPress site, where we often find the most unfounded clickbait headlines claiming grand results not corresponding to anything actually done. It's a very misleading headline of "How the brain learns and applies rules: Sequential neuronal dynamics in the prefrontal cortex." We hear a quote by a scientist who makes a bunch of unfounded claims not matching anything established by his research paper.
The scientist's paper is a poorly-designed piece of low-quality research entitled "The medial prefrontal cortex encodes procedural rules as sequential neuronal activity dynamics." It's a study involving mice. The first question you should always ask when examining a study like this is: how large were the study group sizes (in other words, how many mice were used for each of the study groups)? Normally it is easy to find that. You can search in the scientific paper for the phrases "n=" or "n =" which will usually tell you how many mice were used. Or, you can search for the word "mice," and you will typically find a nice clear phrase such as "10 mice," which will tell you how many mice were used for a particular part of an experiment.
Violating rules of good scientific procedure, the paper fails to ever tell us the number of mice that were used. We have in the paper some 70+ uses of the word "mice," none of which has a number mentioning how many mice were used. Doing the search for the phrases "n=" or "n =" does not reveal how many mice were used.
We can rather safely assume that the number of mice used in each study group was some ridiculously too-small number such as only 6 mice per study group. When neuroscientists use halfway-decent study group sizes, they almost always will mention the number of mice used. When neuroscientists fail to use halfway-decent study group sizes, and use ridiculously inadequate study group sizes, they may be too ashamed to state how small was the number of mice they used.
Going to great efforts which no one should have to go to to get information that the researchers were probably too ashamed to plainly state, information that any good scientific paper should simply plainly state, you can find a statement that allows you to deduce with high likelihood how many mice were used. Going to great labors by wading through the senselessly convoluted mathematics that clutters up this paper, you can find the statement here: " Decoding was conducted for each mouse (mouse IDs 1 to 6) and on specific days (days 1, 2, and 6)." So it seems only six mice were used.
The study is therefore a bad example of very low-quality research. No study like this should be taken seriously unless it used at least 15 or 20 subjects per study group. The study also makes no mention of any control subjects, and no mention of any blinding protocol.
The paper is guilty of ridiculous analytic techniques. We have a long gobbledygook discussion of arbitrary convoluted "maze within a maze within a maze" mathematics that were probably invented after gathering data, so that some claim could be made that some evidence of encoding of learning had been found. The screen shot below shows only a very small fraction of the murky "down the rabbit hole" labyrinthine rigmarole that was going on:
An interesting fact is that if you are allowed to engage in unbridled speculation of very high complexity after gathering data, and if you have only a very small study group size, then almost any data can be claimed as evidence of secret encoding. For example:
- Let us suppose you have data on the exact random locations of the facial pimples of six teenagers with a bad case of acne.
- Let us suppose you are trying to support some claim that these pimples are encodings of some data related to the girls (maybe encoding of their names or their brother's names or the names of their cats or any number of possible things).
- Let us suppose that you are allowed to speculate as much as you want about encoding methods, coming up with any cockamamie scheme of encoding you can imagine, using mathematics as complicated as you wish.
Then, given sufficient labors, and sufficient iterations, you will be able to come up with some speculation of a scheme of encoding that seems to allow you to match up the random pimples on the girl's face with some type of data item you have chosen. An important point is that being pure nonsense, the superficial evidence you have provided for this "scheme of encoding" will break down when a much larger data set is used. So it might be some deal where you have some weak, superficial evidence for some type of "system of encoding" using a data set of only six girls with pimples; but things will break down and your claimed evidence will dissolve when you use a larger data set such as 12 girls with pimples or 20 girls with pimples.
This is why people producing these kind of BS studies like to use very small study group sizes (such as only 6 mice). The smaller the study group size, the easier it is to produce false alarms, and the easier it is to create "see whatever you hope to see" pareidolia.
Thursday, February 12, 2026
Crude "Finger in the Sand" Diagrams of "Engrams" Suggest Vacuous Theorizing
There's a year 2025 paper on the Cornell physics paper server, one entitled "Engram Memory Encoding and Retrieval: A Neurocomputational Perspective." The author attempts to persuade us that he understands something about engrams (alleged memories stored in brains), something for which there is no real evidence. What we have in the paper is misstatements, hand-waving, bluffing and boasting, adorned by about the most primitive diagrams anyone could give. The "finger in the sand" crudity of the diagrams suggests that there is no real underlying understanding of how a brain could store or retrieve memories.
Before discussing how crude are the diagrams, let me list some of the bad misstatements and half truths in the paper:
- The author states, "Despite substantial research into the biological basis of memory, the precise mechanisms by which experiences are encoded, stored, and retrieved in the brain remain incompletely understood." The truth is that scientists have no understanding at all of such a thing, and no robust evidence that any such mechanisms even exist.
- The author states, " A growing body of evidence supports the engram theory, which posits that sparse populations of neurons undergo lasting physical and biochemical changes to support long-term memory." This is false. The claimed evidence for engrams is all junk-science research guilty of sins such as way-too-small study group sizes and unreliable measurement techniques such as judgments of claimed "freezing behavior."
- The author states, "These findings suggest that memory efficiency, capacity, and stability emerge from the interaction of plasticity and sparsity constraints." This is an example of vacuous hand-waving.
- The author states, "Modern discoveries of 'silent engrams' — which exist as physical traces but cannot be retrieved by natural cues, yet can be artificially reactivated — directly align with Semon’s concept of 'primarily latent modifications.' " There has been no actual discovery of 'silent engrams' or any other type of engram. All claims to have made such a discovery are unfounded, and not supported by any well-designed studies with high statistical power.
- The author states, "Modern technological advancements have revolutionized the study of engrams, enabling researchers to investigate how specific memories translate into neuronal changes with unprecedented resolution (Luis & Ryan, 2022). These technologies include transgenic manipulation, optogenetics, chemogenetics, electrophysiology, and sophisticated behavioral techniques." The statement is untrue. Fancy technologies are used in studies looking for engrams, often as a kind of window-dressing to impress the easily impressed. But such studies have produced no robust evidence for any such thing as an engram. No one has ever found the slightest trace of any learned information in brain tissue by studying human brain tissue. Studies looking for evidence of engrams in animals have been a cesspool of junk science, and have been almost invariably guilty of very bad research practices such as way-too-small study group sizes, a lack of a blinding protocol, a lack of pre-registration, and the use of unreliable measurement techniques such as "freezing behavior" judgments.
- The author states, "Modern neuroscience, armed with advanced technologies like optogenetics and immediate early gene labeling, has provided compelling evidence for the existence and dynamic nature of engram neurons and their ensembles." To the contrary, no such evidence has ever been produced. Any papers claiming to have produced such evidence will not hold up to critical scrutiny.
- The author states, "Furthermore, the activity of engram neurons can be tracked in vivo during their maturation from encoding through consolidation using functional indicators like GCaMP (calcium indicators; Cupollilo et al., 2025). These experimental manipulations, particularly in the hippocampus, have demonstrated the necessity and sufficiency of engram cells for memory functions, enabling selective memory erasure, artificial recall, and even the creation of synthetic memories." The first reference is one of many references the author makes to the paper "Early changes in the properties of CA3 engram cells explored with a novel viral tool" authored by Cupollilo and others, which is a very low-quality junk science paper using way-too-small study group sizes such as about 5 mice per study group, a paper guilty of defects such as failing to do any sample size calculation, and relying on unreliable "freezing behavior" judgments. The second sentence (beginning with "these experimental manipulations") is simply untrue, and none of the things claimed as "demonstrated" has actually been demonstrated.
When people understand something and are asked to explain it, they tend to speak exactly in ways that show their understanding. Imagine you interview someone for a job as a computer programmer, and you ask the person, "How can I modify my web site so that it can store and remember data the users type in on a registration page?" If the job candidate is knowledgeable about this topic, he would tend to give a very exact and very detailed answer rather like this:
This is not the kind of diagrams that people produce when they understand something. A group of connected nodes as we see above is not even a sensible depiction of any such thing as the encoding of learned information.
- Memories of daily experiences, such as what you were doing on some day
- Facts you learned in school, such as the fact that Lincoln was shot at Ford's Theater
- Sequences of numbers such as your social security number
- Sequences of words, such as the dialog an actor has to recite in a play
- Sequences of musical notes, such as the notes an opera singer has to sing
- Abstract concepts that you have learned
- Memories of particular non-visual sensations such as sounds, food tastes, smells, pain, and physical pleasure
- Memories of how to do physical things, such as how to ride a bicycle
- Memories of how you felt at emotional moments of your life
- Rules and principles, such as “look both ways before crossing the street”
- Memories of visual information, such as what a particular person's face looks like
- "There is no such thing as encoding a perception...There is no such thing as a neural code...Nothing that one might find in the brain could possibly be a representation of the fact that one was told that Hastings was fought in 1066." -- M. R. Bennett, Professor of Physiology at the University of Sydney (link).
- "No sense has been given to the idea of encoding or representing factual information in the neurons and synapses of the brain." -- M. R. Bennett, Professor of Physiology at the University of Sydney (link).
- "How the brain stores and retrieves memories is an important unsolved problem in neuroscience." --Achint Kumar, "A Model For Hierarchical Memory Storage in Piriform Cortex."
- "We are still far from identifying the 'double helix' of memory—if one even exists. We do not have a clear idea of how long-term, specific information may be stored in the brain, into separate engrams that can be reactivated when relevant." -- Two scientists, "Understanding the physical basis of memory: Molecular mechanisms of the engram."
- "There is no chain of reasonable inferences by means of which our present, albeit highly imperfect, view of the functional organization of the brain can be reconciled with the possibility of its acquiring, storing and retrieving nervous information by encoding such information in molecules of nucleic acid or protein." -- Molecular geneticist G. S. Stent, quoted in the paper here.
- "Up to this point, we still don’t understand how we maintain memories in our brains for up to our entire lifetimes.” --neuroscientist Sakina Palida.
- "The available evidence makes it extremely unlikely that synapses are the site of long-term memory storage for representational content (i.e., memory for 'facts'’ about quantities like space, time, and number)." --Samuel J. Gershman, "The molecular memory code and synaptic plasticity: A synthesis."
- "Synapses are signal conductors, not symbols. They do not stand for anything. They convey information bearing signals between neurons, but they do not themselves convey information forward in time, as does, for example, a gene or a register in computer memory. No specifiable fact about the animal’s experience can be read off from the synapses that have been altered by that experience.” -- Two scientists, "Locating the engram: Should we look for plastic synapses or information- storing molecules?
- " If I wanted to transfer my memories into a machine, I would need to know what my memories are made of. But nobody knows." -- neuroscientist Guillaume Thierry (link).
- "While a lot of studies have focused on memory processes such as memory consolidation and retrieval, very little is known about memory storage" -- scientific paper (link).
Sunday, February 8, 2026
The Failure of Neuroscientist Dogmas Is Intensified by HSAM Cases Such as Jill Price
The credibility of claims that memory recollections come from brains is inversely proportional to the speed and capacity and reliability at which things can be learned and recalled. There has never been found in the brain any component known to be capable of a fast storage of learned information, or storage of learned information at any speed. The protein molecules in brains have a high rate of molecular turnover, and have an average lifetime of less than two weeks. There are numerous signal slowing factors in the brain, such as the relatively slow speed of dendrites, and the cumulative effect of synaptic delays in which signals have to travel over relatively slow chemical synapses (by far the most common type of synapse in the brain). As explained in my post here, such physical factors should cause brain signals to move at a typical speed very many times slower than the often cited figure of 100 meters per second: a sluggish "snail's pace" speed of less than a tenth of a meter per second.
I just found a paper from last year that documents the slow speed of signal transmission in dendrites (which make up more than 90% of brain tissue), with the paper saying that one of the two main transmission types occurs at the sluggish speed of less than a tenth of a meter per second (too slow to explain blazing fast human recall and thinking). I will discuss the paper in a future post.
Ordinary everyday evidence of very fast thinking and instant recall is therefore evidence against claims that memory recall occurs because of brain activity, particularly because the brain is totally lacking in the things humans add to constructed objects to allow fast recall (things such as sorting and addressing and indexes). Chemical synapses in the brain do not even reliably transmit signals. Scientific papers say that each time a signal is transmitted across a chemical synapse, it is transmitted with a reliability of 50% or less. (A paper states, "Several recent studies have documented the unreliability of central nervous system synapses: typically, a postsynaptic response is produced less than half of the time when a presynaptic nerve impulse arrives at a synapse." Another scientific paper says, "In the cortex, individual synapses seem to be extremely unreliable: the probability of transmitter release in response to a single action potential can be as low as 0.1 or lower.") The more evidence we have of very fast and very accurate and very capacious recall (what a computer expert might call high-speed high-throughput retrieval), the stronger is the evidence against the claim that memory recall occurs from brain activity.
It is therefore very important to collect and study all cases of exceptional human memory performance (as well all cases of exceptional human calculation performance). The more such cases we find, and the more dramatic such cases are, the stronger is the case against the claim that memory is a neural phenomenon. Or to put it another way, the credibility of claims that memory is a brain phenomenon is inversely proportional to the speed and reliability of the best cases of human mental performance. The more cases that can be found of humans that seem to recall too quickly for a noisy address-free brain to do ever do, or humans that seem to recall too well for a noisy, index-free, signal-mangling brain to ever do, the stronger is the case that memory is not a neural phenomenon but instead a spiritual or psychic or metaphysical phenomenon.
In my post here I discussed the case of Daniel McCartney, a well-documented case of Highly Superior Autobiographical Memory (HSAM) from the 19th century. The case was well-documented in the paper "Remarkable Cases of Memory" by W. D. Henkle in The Journal of Speculative Philosophy, Vol. 5, No. 1 (January, 1871), Asked what he knew about dozens of random dates from the past 20 years, McCartney appeared to have the ability to recall the day of the week, the weather and what he was doing on each date. Henkle made transcripts of McCartney's answers, and verified the correctness of the days of week McCartney gave. In a later interview Henkle asked about the same dates. He reports that McCartney's answers were consistent from one interview to the next, but with variations, indicating he was really recalling what he remembered, and not some memorized words. Henkle also verified that McCartney had an astonishing math calculation ability, and was able to do many blazing-fast math calculations such as calculating the cube root of 76,507 in 17 seconds.
A similar case is documented in the 2006 paper "A Case of Unusual Autobiographical Remembering" by Elizabeth S. Parker, Larry Cahill and James L. McCaugh. We read about the astonishing memory skills of a subject AJ, who has since been identified as Jill Price. My references below to Jill appear in the paper as references to AJ.
We read that Jill says her memory goes back to an event when she was only about 18 to 24 months, and was awoken by a barking dog. We read this:
"She says that from 1980, age 14 onward, her recall became 'automatic'… 'give me the day and I see it. I go back to the day and I just see the day and what I was doing'....She says her personal memories are vivid, like a running movie and full of emotion. As described in the Introduction, AJ told us that her remembering is automatic and not under her conscious control. Her answers were immediate and quick, not deliberate and reflective. Once given a date within her period of strong memory she would, within seconds, produce the day of the week, or what she did on that day, or what event took place on that day. If allowed to talk uninterrupted, AJ would go on at length telling stories about what she did on that day, or something she did before or after that day, such as a trip home from college with a friend, or the restaurant where she ate and with whom."
The paper authors tried asking Jill about what she was doing on dates they randomly selected. She gave the correct day of the week in almost all cases. She also would give detailed recollections on what she was doing on the days asked about. The authors were able to verify the accuracy of the recollections by consulting Jill's diaries. She had written diaries from the age of 10 to age of 34. We read of this astonishing feat:
"In 2003, we decided to test this by asking her to write down all the Easter dates from 1980 onward. In ten minutes, with no prior warning, she wrote the 24 dates presented in Table 1. All but one date is accurate and it is off by two days. This struck us as particularly impressive in that Easter falls on different days, anywhere between March 22 and April 15, based on the Paschal full moon, and AJ is Jewish."
The feat is all the more remarkable for a Jewish person, given that Jews do not celebrate Easter. We read that two years later she was asked "without forewarning" to reproduce this table, and wrote all of the correct Easter dates for each of the 24 years, producing the results in under ten minutes. In the year 2000 Jill was asked to name the dates she had previously been asked about when she met with the paper authors. She answered "without hesitation" dates of June 24, 2000, July 8, 2000, July 15, 2000, July 23, 2000 and August 19, 2000, which were all correct.
Below are answers Jill given when asked to identify the dates that particular things happened, and when asked to identify what happened on particular dates. The answers all seem to be correct, except that the date of October 5, 1983 was the date Lech Walesa won the Nobel Prize, not the date of the bombing in Beirut, which was October 25, 1983; and the date of the Atlanta bombing in 1996 was July 27 rather than July 26.
Although having an enormously powerful memory for what happened to herself and others during the past twenty years, Jill's performance on short-term memory tests were normal. Solomon Shereshevsky was called "S" in the book The Mind of a Mnemonist by Alexander Romanovitch Luria. Asked to memorize the table of random numbers below, Shereshevsky reproduced the table perfectly, in 40 seconds, after only three minutes of studying it.
On this test Jill performed very poorly, as bad as you or 1 would do. She also performed poorly when asked to recall the hard-to-recall short story "The War of the Ghosts." As discussed in the appendix of this post, a Latvian memory marvel called VP had remarkably good recall of the story an hour after reading it, and also six weeks after reading, even though he was not told he would be asked to recall it a second time.
The paper here is a 2022 paper entitled "Individuals with highly superior autobiographical memory do not show enhanced creative thinking." The paper gives us this description of the memory tests given to 14 subjects with Highly Superior Autobiographical Memory (HSAM), and also twenty-eight normal control subjects:
"We assessed participants’ ability to recollect public and personal past events using the Public Event Quiz and the Random Dates Quiz (LePort et al., 2012). The Public Events Quiz consisted of thirty questions, based on public events selected from five categories: sporting events, political events, notable negative events, events concerning famous people and holidays. For fifteen of these questions, participants were asked to retrieve the date of a given significant public (national or international) event (e.g., 'Please give the day of the week and precise date with day, month and year of when Federica Pellegrini, the famous Italian swimmer, won the gold medal at the Olympic game in Beijing'); the remaining fifteen questions requested participants to associate a given date with a highly significant public event (e.g., 'What happened on the 25th of June 2009?'). All questions concerned events that took place when the participants were at least 8 years old. For each question, individuals were asked to name the day of the week on which the date fell. One point was awarded for each correct response (i.e., the event, the day of the week, the month, the date and the year); the maximum total score was 88 points. The Random Dates Quiz consisted of ten computer-generated random dates, ranging from the individuals’ age of fifteen to five years before the testing. Individuals were asked to provide three details for each date: (1) the day of the week; (2) a description of a verifiable event (i.e., any event that could be confirmed via a search engine) that occurred within a few days before and after the generated date; (3) a description of a personal autobiographical event. One point each was awarded for the correct day of the week, a correct public event, and unverified personal autobiographical memory. A maximum of three points per date could be achieved (30 points total)."
The results were spectacular. The 14 subjects with Highly Superior Autobiographical Memory (HSAM) scored more than 25 times higher on the Random Dates test, scoring an average of 68.57% of the maximum possible. The control subjects scored an average of merely 2.62% of the maximum possible on the Random Dates test. On the Public Events test, the 14 subjects with Highly Superior Autobiographical Memory (HSAM) scored more than 5 times higher, scoring an average of 58.20% of the maximum possible. The control subjects scored an average of merely 10.39% of the maximum possible on the Public Events test. The best-performing of the 14 subjects with Highly Superior Autobiographical Memory (HSAM) scored 96.67% of the maximum possible, an almost perfect score.
Such results of stunning memory recall ability are very impressive, but they are "icing on the cake" in terms of showing memory performance beyond what brains could ever do. The instant recall performance of ordinary people is enough to show ability far beyond what a brain could ever do. Every time someone asks you some obscure question such as "who was Brutus" and you instantly answer correctly, you are showing performance utterly beyond what a brain without addresses and indexes could ever do. We do not recall at the speed of brains. We recall at the speed of souls.
Appendix: In the 1972 book "Coding Processes in Human Memory" we have a chapter entitled "How Good Can Human Memory Be?" written by Earl Hunt and Tom Love of Washington University. Registered users at www.archive.org can read the whole chapter using the link here. The authors start telling us about a subject they studied who they call VP. We are told VP was born in Latvia in 1935, and that by the age of five he had memorized the street map of Riga, a city of 500,000. We are told he could play up to 60 games of chess simultaneously by correspondence, without consulting written records.
At the end of the chapter, we are given the text of the story, VP's first recollection of it, and the recollection six weeks later. The story is about 350 words long. Here is one example of how good the recollection was. The story begins, "One night two young men from Eugulac went down to the river to hunt seals, and while they
Wednesday, February 4, 2026
The Groundless Myth of an Electrically Surging Dying Brain
British mainstream news sources often misinform us very badly on science-related topics. In 2024 the British paper the Guardian gave us a junk story on the topic of near-death experiences. It pushed a groundless narrative that a neuroscientist had done something to help explain such experiences, which is not at all correct. My widely read post "The Guardian's Misleading Story on Near-Death Experiences" gave an in-depth expose of all of the errors and misleading statements in that article. I was actually invited by someone at a scientific journal to turn that article into a scientific paper, but I declined, mostly because I am too busy writing posts for my three blogs (all which have many posts scheduled for future publication).
A post of mine from 2025 ("The BBC's Science News Coverage Is Often Third-Rate") gave quite a few examples of third-rate coverage of science by the British Broadcasting Company or its affiliate or licensee that publishes under the name of BBC Science Focus. My post here documents falsehoods and misleading statements in a year 2025 BBC Science Focus article on near-death experiences. The latest example of poor science-related journalism from BBC Science Focus is a year 2026 article entitled "We're finally learning what it's like to die. And it's not as bad as you think...".
Near the beginning of the article the author (Nate Scharping) states this, referring to EEG devices that read brain waves by means of electrodes attached to a head:
"But scientists have recently begun to explore what happens in the final moment of life by gathering data on brain activity from patients who are dying. Using electroencephalogram (EEG) recordings, researchers are able to watch how patterns of brain activity change in the moments leading up to death."
We then have from the BBC article a very misleading statement trying to suggest the false idea that brains stay active for a minute after the heart has stopped. The article says this:
"That means that a flatlining heart monitor alarm – the classic Hollywood marker of death – doesn’t actually represent brain death. According to Dr Ajmal Zemmar, a neurosurgeon and neuroscientist in Louisville, Kentucky, real brain death occurs later, likely more than a minute after the heart stops. That’s when an EEG shows a halt in brain activity."
I don't know who got it wrong here (Zemmar or the article writer Scharping), but the statement is false. The reality is that EEG devices show brains flatlining within 15 to 30 seconds after the heart stops, not "more than a minute" after the heart stops.
The term "isoelectric" or iso-electric in reference to brain waves means a flat-lining equivalent to no electrical activity in the brain, as measured by EEG readings. The paper here states, "Within 10 to 40 seconds after circulatory arrest the EEG becomes iso-electric." Figure 1 of the paper here says that such an isoelectric flat-lining occurred within 26 seconds after the start of ventricular fibrillation, the "V-fib" that is a common cause of sudden cardiac death, with "cortical activity absent." Also referring to a flat-lining of brain waves meaning a stopping of brain electrical activity, another scientific paper says, "several studies have shown that EEG becomes isoelectric within 15 s [seconds] after ischemia [heart stopping] without a significant decrease in ATP level (Naritomi et al., 1988; Alger et al., 1989)."
Similarly, another paper refers to blood pressure, and tells us, "When flow is below 20 mL/100 g/min (60% below normal), EEG becomes isoelectric." meaning that brain electrical activity flat-lines. The 85-page "Cerebral Protection" document here states, "During cardiac arrest, the EEG becomes isoelectric within 20-30 sec and this persists for several minutes after resuscitation." Another scientific paper states this, again using the word "isoelectric" to refer to flatlining of brain waves:
"Of importance, during cardiac arrest, chest compliance is not confounded by muscle activity. The EEG becomes isoelectric within 15 to 20 seconds, and the patient becomes flaccid (Clark, 1992; Bang, 2003)."
A recent scientific paper referring to EEG readings of brain waves states this:
"The trajectory of EEG activity following cardiac arrest is both well defined and simple. It consists of an almost immediate decline in EEG power, which culminates in a state of isoelectricity [flatlining] within 20 s [seconds]."
A year 2025 scientific paper ("Near-death experience during cardiac arrest and consciousness beyond the brain: a narrative review") states this:
"In the context of circulatory arrest, cortical electrical waves in the alpha (8-13Hz) and beta (13-30Hz) bands disappear after an average of 6.5 seconds, while at the same time, the background activity of EEG is replaced by slow waves at delta frequency (<4Hz), which progressively attenuate and lead to a flat EEG recording with no measurable electrical wave pattern around 10-30 seconds—a neural process called isoelectricity or electrocerebral silence (Clute & Levy, 1990; de Vries et al., 1998; Singer et al., 1991; Smith et al., 1990; van Lommel, 2023, p. 28; Visser et al., 2001; Vriens et al., 1996). Furthermore, in monkeys and cats, the EEG becomes isoelectric within 20 seconds of the cessation of cerebral blood flow (Hossmann & Kleihues, 1973). The EEG results suggest that cortical electrical activity critical for consciousness, namely alpha and beta activity reflecting top-down connectivity, is eliminated within an average of 6.5 seconds following CA [cardiac arrest]."
You can find quite a few additional papers asserting that brains flat-line very quickly after cardiac arrest by doing Google or Google Scholar searches for the phrase "EEG becomes isoelectric" or "EEG becomes iso-electric."
Unlike the ‘wave of death’, this activity is highly coordinated and likely represents a conscious experience, Zemmar explains. It’s something that both those who report NDEs and those who have actually died may experience – though science can’t yet say for certain. 'Usually the brain does this when you meditate, when you perform very high [level] cognitive tasks,' he says. 'It’s like the brain is… trying to pull off this very coordinated activity.' ”
The truth is that as soon as hearts shut down, brains very quickly start to flatline, and become electrically inactive within 15 to 30 seconds. There is zero neuroscience basis for thinking that conscious activity of any substantial length occurs during cardiac arrest. There is zero legitimacy in the attempt above to draw some similarity between brain activity during cognitive tasks and meditation and brain activity during cardiac arrest. Zemmar's paper provides zero warrant for speculating that the silent dying patient it involved was conscious, and zero warrant for speculating that his data has any relevance to the topic of near-death experiences.
Scharping then has a link to the paper "Surge of neurophysiological coupling and connectivity of gamma oscillations in the dying human brain." Referring to "four Michigan Medicine patients who died while being monitored by EEGs and electrocardiograms (ECGs)," Scharping then tells us this:
"Two of the four had little to no change in their brain activity before they died. But the EEG readouts for the other two patients recorded significant bursts of gamma waves beginning just seconds after their ventilators were removed. Gamma waves are the highest frequency of brain waves and are typically associated with higher levels of conscious processing."
In my post here I carefully analyzed the data on all four of the patients that this study dealt with. In every case, the brain waves of the subjects shut down very promptly within a few seconds after their hearts stopped. I include visuals from the paper in that post. The reality is the exact opposite of what Scharping is trying to suggest. Instead of there being EEG readings suggesting "higher levels of conscious processing," for each of the four patients there were EEG readings indicating the exact opposite: brains electrically shutting down with 15 to 30 seconds after the heart stops.
The article then gives us a false assessment of the work of neuroscientist Jimo Borjigin. In my post here I document two misleading statements by Borjigin, and debunk claims that this neuroscientist did anything to provide evidence relevant to explaining near-death experiences.
Below is a screen shot giving an example of one of Borjigin's misleading statements on this topic. It shows part of the paper Borjigin co-authored involving cardiac arrest in rats, a paper with the misleading titlte "Surge of neurophysiological coherence and connectivity in the dying brain," a title not matching the reported data. The screen shot shows Figure 1 of the paper and part of its caption. We see in the top right corner EEG data showing the brain of a rat flatlining within about 15 seconds after cardiac arrest. But in a misleading statement, this very quick flatlining is described in the caption as "EEG displays a well-organized series of high-frequency activity following cardiac arrest." A correct description of the data would have been "a rat brain flatlining within 15 seconds after the rat's heart stopped."
Trying to back up his groundless claim of a surge of brain activity at death, Scharping then refers us to the 2017 study "Characterization of end-of-life electroencephalographic surges in critically ill patients." There are quite a few problems with that study. First, it did not use the type of EEG device used by neurologists, but a much cheaper device called the SEDLine device, one "developed as an assessment of hypnosis during anesthesia." The manual of the device tells us that it computes a single number, something called a Patient State Index which it defines as the likelihood that a patient is anesthetized. The devices were not designed for the purpose the paper authors used them for. The paper authors did not have heart-rate data corresponding to their brain wave data, as they were analyzing solely from a head-only device (SEDLine) that does not take pulse or heart rate measurements (according to its manual). So we do not know how many (if any) of these so-called "end-of-life electroencephalographic surges" were things occurring after someone's heart stopped.
According to four papers on the phenomenology of near-death experiences that I studied to make the table below, there are features that recur in a large fraction of near-death experiences. The papers mentioned in the table below are these:
Study 1: The phenomenology of near-death experiences,” 78 subjects (link), a 1980 study, producing results similar to a smaller study group year 2003 in-hospital study by one of its co-authors.
Study 2: "Qualitative thematic analysis of the phenomenology of near-death experiences,” 34 subjects (link), a 2017 study on people who survived cardiac arrest.
Study 3: "Near-death experience in survivors of cardiac arrest: a prospective study in the Netherlands," a 2001 study of 62 subjects who were known to have suffered cardiac arrest and survived it, and who also reported a near-death experience (a subset that was 12% of a larger group of cardiac arrest survivors), link. The average duration of cardiac arrest was 4 minutes. 74% were interviewed within 5 days of their cardiac arrest.
Study 4: "The Different Experience: A Report on a Survey of Near-Death Experiences in Germany," 82 subjects (link).
Study 1
Study 2
Study 3
Study 4
Seeing a light or “unusual visual phenomena” such as lights or auras
48%
74%
> 23%
40%
Meeting other beings
55%
44%
32%
42%
Positive emotions or intense feeling of well-being
37-50%
29%
56%
50%
“Hyper-lucidity”
41%
ESP during the near-death experience
39%
12%
"Awareness of being dead" or awareness of dying
26% 50%
Distortion of time
79%
47%
Celestial landscape or other realm of existence
72%
29%
47%
Contact or communication with the dead
30%
23%
32%
16%
Out-of-body experience
35%
35%
24%
31%
Having some sort of nonphysical body separate from the physical body
58%
Passing through tunnel or similar structure
31%
26%
31%
38%
Life reviewed or relived
27.%
15%
13%
44%
The third of these studies (Study 3 in the table above) was limited to people reporting near-death experiences during cardiac arrest. The vivid experiences reported should have been impossible under "brains make minds" assumptions, because brains electrically shut down within 15 to 30 seconds after the heart stops, with that shutdown showing as a flatlining of EEG signals. And as for out-of-body experiences (in which an observer sees himself outside of his body), which are often part of near-death experiences, such out-of-body experiences are the least likely thing that anyone would ever report if his brain were the source of his mind.
Postscript: The BBC Science Focus article discussed above was followed by a just-as-misleading materialist article entitled "Think you're the same person every day? This brain experiment says otherwise." We read of no experiment matching this deceptive clickbait claim. We have the false claim in the article about the tempero-parietal junction region: "When researchers electrically stimulated this brain region during brain surgery, it triggered an out-of-body experience in the patients." The statement is backed up a link to a paper behind a paywall. You can get the full paper on Google Scholar, and it describes no such experiment done in 2005, nor does it describe any such experiment done with multiple subjects. The paper does mention a 2002 paper that was based on a single subject. I debunked the paper in a previous post:
- "Stimulating illusory own-body perceptions." This 2002 paper has some quotes by a subject in whom the authors had brain-zapped with electricity, by inserting electrodes in her brain. The authors have attempted to portray this as evidence of an artificially induced out-of-body experience. But the only sentence that the paper quotes from the subject is one that does not indicate a full out-of-body experience. That sentence is this: "I see myself lying in bed, from above, but I only see my legs and lower trunk." That sounds like some weird electricity-induced perception anomaly that is not properly described as an out-of-body experience. During an out-of-body experience a person will typically report leaving his body and seeing his entire body (not just the legs and lower trunk) from outside of the body. Eager to report some experimental induction of an out-of-body experience, our authors seem to have taken some account that does not match those of out-of-body experiences, and called that an out-of-body experience. The authors make this claim: "Two further stimulations induced the same sensation, which included an instantaneous feeling of 'lightness' and 'floating' about two metres above the bed, close to the ceiling." Since this is not an actual full-sentence quote from the subject, it has very little value as evidence. A second-hand account of a person's weird experience during brain zapping (by some other person who did not have that experience) is pretty worthless as evidence. What would we have read from a transcript of what the subject said, one including any questions the subject was asked? We have no idea.




















