PZ Myers

Near death, rehashed

Beauregard's reaction to out-of-body science criticisms proves my original point

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Near death, rehashed PZ Myers (Credit: Wikipedia)
This originally appeared on PZ Myers' blog. It was written as part of a continuing debate over the recent excerpt from Mario Beauregard's "Brain Wars" (HarperOne), about near-death experiences, republished on Salon.

The story so far: Mario Beauregard published a very silly article in Salon, claiming that Near-Death Experiences (NDEs) were proof of life after death, a claim that he attempted to support with a couple of feeble anecdotes. I replied, pointing out that NDEs are delusions, and his anecdotal evidence was not evidence at all. Now Salon has given Beauregard another shot at it, and he has replied with a “rebuttal” to my refutation. You will not be surprised to learn that he has no evidence to add, and his response is simply a predictable rehashing of the same flawed reasoning he has exercised throughout.

In his previous sally, he cited the story of Maria’s Shoe, a tall tale that has been circulating in the New Age community for decades, always growing in the telling. This story is the claim that a woman with a heart condition was hospitalized, and while unconscious with a heart attack, her spirit floated out of the coronary care unit to observe a shoe on a third-floor ledge. As has been shown, she described nothing that could not be learned by mundane observation, no supernatural events required, and further, that the story is peculiarly unverifiable: “Maria” cannot be found, not even in the hospital records, and no one has been found who even knew this woman. The entire story is hearsay with no independent evidence whatsoever.

Beauregard attempts to salvage the story by layering on more detail. The description of the shoe was very specific, he says, right down to the placement of the laces and the pattern of wear, and she could not possibly have learned this by overhearing staff talking about it because “it would have been difficult for Maria to understand the location of the shoe in the hospital and the details of its appearance because she spoke very little English.” This is a curious observation; the claim is that she could not understand a description of the shoe, but she was able to describe the shoe herself to a woman, Kimberly Clark Sharp, who did not understand Spanish.

“When I got to the critical-care unit, Maria was lying slightly elevated in bed, eyes wild, arms flailing, and speaking Spanish excitedly,” recounts Sharp. “I had no idea what she was saying, but I went to her and grabbed her by the shoulders. Our faces were inches apart, our eyes locked together, and I could see she had something important to tell me.”

The question isn’t whether a seriously ill woman with poor command of English could see the shoe; it’s whether a healthy, ambulatory, English-speaking woman who has made a career out of the myth of NDEs could see the shoe. Beauregard’s additions to the anecdote do not increase its credibility at all.

Beauregard adds another anecdote to the litany, the story of another cardiac patient who was resuscitated and later recounted seeing a particular nurse while his brain was not functional. Seriously — more anecdotes don’t help his case. He threatens to have even more of these stories in a book he’s in the process of publishing, but there’s no point. He could recite a thousand vague rumors and poorly documented examples with ambiguous interpretations, and it wouldn’t salvage his thesis.

This new anecdote is more of the same. The patient is comatose and with no heart rhythm when brought into the hospital; over a week later, he claims to recognize a particular nurse as having been present during his crisis, and mentions that she put his dentures in a drawer.

I am underwhelmed. I must introduce Beauregard to two very common terms that are well understood in the neuroscience community.

The first is confabulation. This is an extremely common psychological process in which we fill in gaps in our memory with fabrications. I described this in my previous response, but Beauregard chose to disregard it. The patient above has a large gap in his memory, but he knows that he existed in that period, and something must have happened; he knows that he was resuscitated in a hospital, so can imagine a scene in which he was surrounded by doctors and nurses; he knows that his dentures are missing, so he suspects that someone put them somewhere, likely one of the people surrounding him during the emergency. So his brain fills in the gap with a plausible narrative. This whole process is routine and unsurprising, and far more likely than that his mind went wandering away from his brain.

The second term is confirmation bias. Only positive responses that confirm Beauregard’s expectations are noted. The patient guessed that a nurse he met during his routine care was also present during his episode of unconsciousness, and he was correct. What if he’d guessed wrongly? That event would be unexceptional, nobody would have made note of it, and Beauregard would not now be trotting out this incident as a vindication of his hypothesis. This is one of the problems of building a case on anecdotes; without knowledge of the range and likelihood of various results, one can’t distinguish the selective presentation of chance events from a measurable phenomenon.

While unaware of basic concepts in science, Beauregard seems to readily adopt the most woo-ish buzzwords. His explanation for this purported power of the mind to exist independently of any physical substrate is, unfortunately and predictably, quantum mechanics. Every charlatan in the world seems to believe that attaching “quantum” to a word makes it magical and powerful and unquestionable. I have to accept Terry Pratchett’s rebuttal: “‘Let’s call it Quantum!’ is not an explanation.” And neither is Beauregard’s feeble insistence that the universe possesses quantum consciousness, that psychic powers represent quantum phenomena, or that there is an infinitely loving Cosmic Intelligence.

Beauregard then accuses me of having an ideological bias, and that I’m a fanatical fundamentalist. He, of course, is the dispassionate, objective observer with no ax to grind, only interested in reporting the scientific facts. Unfortunately, his book “The Spiritual Brain” reveals to the contrary that he has some very, very strange beliefs.

Individual minds and selves arise from and are linked together by a divine Ground of Being (or primordial matrix). That is the spaceless, timeless, and infinite Spirit, which is the ever-present source of cosmic order, the matrix of the whole universe, including both physics (material nature) and psyche (spiritual nature). Mind and consciousness represent a fundamental and irreducible property of the Ground of Being. Not only does the subjective experience of the phenomenal world exist within mind and consciousness, but mind, consciousness, and self profoundly affect the physical world…it is this fundamental unity and interconnectedness that allows the human mind to causally affect physical reality and permits psi interaction between humans and with physical or biological systems. With regard to this issue, it is interesting to note that quantum physicists increasingly recognize the mental nature of the universe.

If I am an ideologue, it’s only in that I demand that if you call something science, it bear some resemblance in method and approach to science, not mysticism. Beauregard insists on trying to endorse the babbling piffle above as science by reciting the number of publications he has made, and how much grant money he’s got, when I’m looking for verifiable, reproducible, measurable evidence.

I would also remind him that Isaac Newton, who was probably an even greater scientist than the inestimable Beauregard, wasted much of his later years on mysticism, too: from alchemy and the quest for the Philosopher’s Stone, to arcane biblical hermeneutics, extracting prophecies of the end of the world from numerological analyses of Revelation. While his mechanics and optics have stood the test of time, that nonsense has not. That his mathematics and physics are useful and powerful does not imply that he was correct in his calculation that the world will end before 2060 AD; similarly, Beauregard’s success in publishing in psychiatry journals does not imply that his unsupportable fantasies of minds flitting about unfettered by brains is reasonable.

Near-death, distorted

Taking aim at a recent Salon story about the science of out-of-body experiences

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Near-death, distorted PZ Myers (Credit: Wikipedia)
This originally appeared on PZ Myers' blog. It was written as a reaction to the recent excerpt from Mario Beauregard's "Brain Wars" (HarperOne), about near-death experiences, re-published on Salon. Beauregard's response to Myers will appear on the site this weekend.

Salon has had a redesign, which is fine; it seems to do this periodically just to confuse us. I’ll adjust to that, but what I don’t like is that the first thing I saw highlighted was an article so full of woo that for a moment I thought I’d stumbled onto the Huffington Post. We are now supposed to believe that science has explained near-death experiences (NDEs), and the answer is proof of life after death. It’s all nonsense; some editor somewhere needs to learn some critical thinking, because this article is filed under “neuroscience” when it ought to be in a category called “bullshit.”

The first clue that this is going to be bad is the author, Mario Beauregard. Beauregard was coauthor with Denyse O’Leary of one of the worst, that is, most incompetently written and idiotically conceived, books I’ve ever read, “The Spiritual Brain.” It’s not just that he thought it sensible to team up with a well-known intelligent-design crank, but that the content is unreadable and the “science” is gobbledy-gook — Beauregard is a well-established kook, and here he is, writing for Salon.

NDEs are evidence of nothing but the creative power of the human mind. NDE proponents are constantly trotting out the same tired old anecdotes and the same tired old bogus misinterpretations, and this article is just more of the same. If you’ve ever looked into the NDE literature, you’ll know that two cases that are repeatedly brought up are the 20- to 30-year-old stories of Pam and Maria’s shoe; they have become something close to legend. These stories are poorly documented — “Maria,” for instance, can’t even be found in any hospital records, despite a story that details many medical details. Beauregard blithely recounts this anecdotal story as evidence that NDEs are real.

Maria was a migrant worker who had a severe heart attack while visiting friends in Seattle. She was rushed to Harborview Hospital and placed in the coronary care unit. A few days later, she had a cardiac arrest but was rapidly resuscitated. The following day, Clark visited her. Maria told Clark that during her cardiac arrest she was able to look down from the ceiling and watch the medical team at work on her body. At one point in this experience, said Maria, she found herself outside the hospital and spotted a tennis shoe on the ledge of the north side of the third floor of the building. She was able to provide several details regarding its appearance, including the observations that one of its laces was stuck underneath the heel and that the little toe area was worn. Maria wanted to know for sure whether she had “really” seen that shoe, and she begged Clark to try to locate it.

Quite skeptical, Clark went to the location described by Maria — and found the tennis shoe. From the window of her hospital room, the details that Maria had recounted could not be discerned. But upon retrieval of the shoe, Clark confirmed Maria’s observations. “The only way she could have had such a perspective,” said Clark, “was if she had been floating right outside and at very close range to the tennis shoe. I retrieved the shoe and brought it back to Maria; it was very concrete evidence for me.”

The case is touted as a clear example of veridical perception. “Veridical” is one of the favorite words of the NDE/OBE crowd; it simply means an observation that aligns with reality, so they’re always babbling about people wafting about in a ghostly disembodied state and seeing things that no earth-bound human could possibly have seen, which are later confirmed. Unfortunately, all we get are second- and third-hand accounts full of embellishments, and tall tales whose highlights are depressingly mundane, such as seeing a shoe on a ledge. It’s always trivia that gets reported. It seems that all dead people want to do is hover.

And, of course, Maria’s story has been totally demolished. The little details are all inflated; for instance, the claim that details of a shoe on a ledge could not possibly be discerned has been tested on that hospital building, and it turns out that a shoe on the ledge actually is really easy to see and jumps out to the eye of people passing beneath.

So, a few well-worn exaggerations are all these guys have to go on. I don’t think Beauregard can claim science has had any “shocking results” when this is the best he’s got.

Furthermore, Beauregard, who is supposed to be a neuroscientist, says some awesomely stupid things.

This case is particularly impressive given that during cardiac arrest, the flow of blood to the brain is interrupted. When this happens, the brain’s electrical activity (as measured with EEG) disappears after 10 to 20 seconds. In this state, a patient is deeply comatose. Because the brain structures mediating higher mental functions are severely impaired, such patients are expected to have no clear and lucid mental experiences that will be remembered. Nonetheless, studies conducted in the Netherlands, United Kingdom, and United States have revealed that approximately 15 percent of cardiac arrest survivors do report some recollection from the time when they were clinically dead. These studies indicate that consciousness, perceptions, thoughts, and feelings can be experienced during a period when the brain shows no measurable activity.

This is another common claim. The subject, they say, was flat-lined during the incident — the heart was still and there was no brain activity, and yet, they claim, the subject was experiencing detailed perceptual events during this period of material inactivity. What they gloss over is the simple fact that, while there was definitely a period when their brain was functionally inert, they are describing these events afterward, in a period when their brain is fully active. Beauregard is making the ignorant mistake of assuming that our consciousness is a continuous stream of recorded mental activity, and that a remembered event must necessarily have actually occurred.

That’s not how memories work. Our brains don’t tuck away a movie of our experiences somewhere in our temporal lobe; they store a few little details away, with a web of associations, and basically reconstruct the event when we try to recall it. This is why eyewitness testimony is unreliable — memory is dynamic and constantly being modified by later experience. When we lose conscious awareness and later recover it, the brain has absolutely no problem inventing a continuous narrative to fill in the blanks, and in fact, the way our minds work, we want that narrative. To consider that we didn’t exist for an interval of time is something we linear creatures tend to shy away from.

So when someone claims that a report of a recollection from a time when they were clinically dead is evidence of a mind functioning during that period when the brain was nonfunctional, you should know  they’re full of shit. It’s evidence of no such thing.

I also have to add that all of the accounts of NDEs and other such out-of-body experiences (OBEs) are peculiar in their attachment to ordinary patterns of perception. They claim to become a noncorporeal, immaterial, invisible entity that floats around, but somehow, they use the same mundane senses they do in the body. How do invisible eyes capture photons? How do immaterial minds detect physical vibrations in the air? Sensory transduction is a real problem for beings that lack hair cells and photoreceptors, I would think. It’s much more likely that they are using those fleshy sensory organs (or even more likely, the memory of using those organs), while experiencing an illusion of detachment from their body.

No reservations trouble Beauregard, though. He blindly charges on to claim revelation.

These findings strongly challenge the mainstream neuroscientific view that mind and consciousness result solely from brain activity. As we have seen, such a view fails to account for how NDErs can experience — while their hearts are stopped — vivid and complex thoughts and acquire veridical information about objects or events remote from their bodies.

NDE studies also suggest that after physical death, mind and consciousness may continue in a transcendent level of reality that normally is not accessible to our senses and awareness. Needless to say, this view is utterly incompatible with the belief of many materialists that the material world is the only reality.

As I’ve said, the recollection of vivid and complex thoughts while the heart is stopped is not only easily explained, it’s pretty much the default understanding by neuroscientists of how the brain works. The acquisition of veridical information would be more difficult to explain… if it had ever occurred. Trundling out the same hoary folk tales and anecdotes is not at all convincing that it has.

He is right that this idea of minds existing independently of brains is incompatible with materialist views. It’s also incompatible with the existing evidence, and he has presented no counter-evidence. His extremely badly argued article is yet another piece of evidence, though, that Beauregard is a crank.

P.S. It’s a shame that tripe got published in Salon, but don’t read the comments, or you’ll discover why it got published. There sure are a lot of mystically inclined, quantum-woo-spouting diddledingles fulminating away in their readership.

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David Brooks’ dream world for the trust-fund set

His buzzed-up new fiction/science amalgam had me leaping to my feet -- to yell, "Die, yuppie scum, die!"

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David Brooks' dream world for the trust-fund set

I made it almost a third of the way through the arid wasteland of David Brooks’ didactic novel, “The Social Animal: The Hidden Sources of Love, Character, and Achievement,” before I succumbed. I had begun reading it determined to be dispassionate and analytic and fair, but I couldn’t bear it for long: I learned to loathe Harold and Erica, the two upscale avatars of upper-middle-class values that Brooks marches through life in the story. And then I began to resent the omniscient narrator who narrates this exercise in unthinking consumption and privilege that is, supposedly, the ideal of happiness; it’s like watching a creepy middle-aged man fuss over his Barbie and Ken dolls, posing them in their expensive accessories and cars and houses and occasionally wiggling them in simulated carnal relations (have no worries, though: Like Barbie and Ken, no genitals appear anywhere in the book), while periodically pausing to tell his audience how cool it all is, and what is going on inside his dolls’ soft plastic heads.

I did manage to work my way through the whole book, however, by an expediency that I recommend to anyone else who must suffer through it. I simply chanted to myself, “Die, yuppie scum, die,” when I reached the end of each page, and it made the time fly by marvelously well. In addition, there is a blissful moment of catharsis when you reach the last page and one of the characters does die, although it isn’t in a tragic explosion involving a tennis racket, an overdose of organic fair-trade coffee, and an assassination squad of rogue economists at Davos, as I was hoping. That’s not a spoiler, by the way; the book is supposed to be all about the happy, productive life histories of Harold and Erica, from birth to death, so it’s no surprise that at least one dies. It is incomplete, in that the other one survives … an unsatisfying ending that I could happily resolve with one more bloody page, and that represents the only case I can imagine in which I’d ever ask David Brooks to write another word.

So what is this book about? It’s a bizarre chimera, an unholy grafting together of a novel, the story of Harold’s and Erica’s lives, and an ideological, psychological, neurological and pseudo-scientific collection of materialist explanations for their happy situation. Every chapter whipsaws the reader between a fictional narrative about some exemplary event in their history — birth, education, being attractive and popular, careers, relationships, corporate revenues, morality, European vacations and other such universal concerns — and a pedagogical and often facile digression into the supposed neural substrates that drive and reward decisions that will make these two happy and fulfilled. Neither part stands alone, and together … I’m sure there were delusions of a soaring synergy that would drive deep insights, but instead it’s a battle between two clashing fairy tales to see which one would bore us or infuriate us first.

Consider the novel element first. It contains a straightforward narrative, a description of two people’s trajectory through life. The plot is deadly dull: Erica, for instance, ascends smoothly from private school to business management to business leader to significant government functionary to the inner circles of Davos to a blissful retirement spent wallowing in high culture, with only brief stutters — losing a tennis match, a failed business, a brief marital infidelity — which she powers through with the discipline of her will, pausing only long enough for David Brooks to lecture the reader on how the mind overcomes adversity. What story there is here is pure mainlined bourgeois wish fulfillment, a kind of yuppie Mary Sue for the whole of the trust-fund set. There aren’t even any losers to contrast with Erica’s unending winningness, because everyone around them seems to be rising on the same cheerful bubble of privilege.

Nothing changes. In the introduction, Brooks even mentions this, that the story “takes place perpetually in the current moment, the early twenty-first century,” so the characters are born in this decade, grow up in this decade, work in this decade, die in this decade. Brooks has created a world where history doesn’t matter and there are no troubling external intrusions on the blithe reality of Harold and Erica. If ever you are in the market for the antithesis of the Great Russian Novel, here it is, the petty provincial string of anecdotes about only two characters who never experience a moment of self-doubt or inner turmoil.

The characters had potential, at least, and shouldn’t have been so bland. Erica is Chicana-Asian, but the ethnicity is entirely nominal, and once she asserts herself to a patronizing billionaire with a private school and gains entry into the world of entitlement with his charity, any pretense of diversity is jettisoned, and she becomes merely Ambitious, Focused Businessperson, with the superpowers of Discipline and Drive. Even her sex is largely irrelevant, but to be fair, so is Harold’s: They are a complementary pair of androgynous droids who, we are told, love each other deeply. Harold slots nicely into his role, too, as the Dreamy Academic Dilettante with the powers of Creativity and Synthesis.

There is nothing wrong with establishing a couple of clearly defined personalities in the story, of course. The awkwardness lies in how we learn about them; David Brooks is a “tell, don’t show” kind of guy, and instead of revealing these personalities by their actions and speech, we’re simply told by the omniscient narrator about the qualities of their characters. For a book that promises depth and insight into human values, this strategy is an admission of failure and narrative suicide. I don’t care about Erica and Harold, and while Brooks may tout the importance of the emotional surges and connections that bring people together, I sure don’t feel anything about their decisions. I’m just told.

For example, Erica makes a life-defining career decision: She meets a woman who runs a restaurant chain, who is thin and well-dressed in a conservative business suit, and Erica can imagine being like her someday, as Brooks tells us. And then, “Erica was suddenly consumed by a burning desire to be a business leader.” What, how? Was it the suit? I don’t know. We leapt from a superficial description of the appearance of a visitor to Erica’s school to “Something had lit the furnace of the little engine of ambition, which from this day forth would know no rest,” and on that train of stock phrases, a personality is fixed and launched unchangingly toward the end of the book.

Even Brooks would concede that his novel-within-the-book is not “Dr. Zhivago,” and I don’t think we’re supposed to get any lyrical insight from his plodding prose. The special quality of “The Social Animal” is billed as being its melding of information from neuroscience into the story, to help us better understand how the unconscious mind forms our characters and helps us achieve success.

The book fails neuroscience, too.

I don’t even necessarily disagree with the biological and psychological studies sprinkled in short, pithy summaries like shriveled little raisins of evidence in the gloppy porridge of his story; it’s that they’re just laid out so superficially and so discretely, with no discussion of how or to what degree or of context and significance. It’s a collection of factlets. I imagine them as conclusions written down on 3-by-5 cards, committed to memory, ready to be succinctly flashed as displays of erudition at a business meeting, and nothing more.

The issue here is that Brooks is dealing with complex matters, and by trying to stuff all of the factors that might impinge on the entirety of two lives, he commits himself to dashing off no more than a few paragraphs about each, leaving them dangling unconnected to one another and certainly doing nothing to complement the literary deficiencies of the book. They are instead so incongruous that they almost provide moments of comic relief.

Harold and Erica, for instance, begin to fall in love. In the fictional episode of the book, this is represented by a moment of flat affect, when they are working out on their bicycles and take a moment of rest at the top of a hill to hold hands. That’s “lovely,” Harold thinks. Then, a few pages later, we get the technical explanation of what’s going on: Harold’s ventral tegmentum and caudate nucleus are releasing dopamine, norepinephrine and phenylethylamine!

Woo, as Homer Simpson would say, hoo. Harold’s brain must be having a wild time.

That’s it. Brooks drops the technical names of two brain regions and a couple of neurotransmitters, briefly mentions their association with learning and reward centers, and we hear nothing more about them for the rest of the book, and nothing in his abbreviated description helps us understand how or why or what. A proximate mechanical explanation is no explanation at all, especially if given to an audience that most likely has little awareness of what a brain nucleus represents, or what these chemicals do. They are polysyllabic magical incantations that allow shallow people to pretend to have knowledge.

The technicalities don’t illuminate the story in any way, and the story undercuts the science. Ultimately, the neuroscience in the book feels a micrometer deep and a boring lifetime long, with the fiction of Harold and Erica giving the impression that it’s built on a sample size of two, and both of them utterly imaginary.

I don’t know whom this book is really written for. It’s definitely not going to satisfy any scientists, or even any informed people who want to know more about how the brain works — there’s no technical meat on the bones of this farce. It’s certainly not going to satisfy anyone hoping for literary quality, or beauty and poetry, or even a good story. I suspect that its only virtue is in uniting C.P. Snow’s two cultures, both of which will be populated with peeved readers flinging the book with great force across rooms everywhere.

 

 

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