Chapter 3

A Brief History of NDE Research

Every field of study has a story. Physics has its Newton-and-the-apple moment. Biology has Darwin sailing on the Beagle. The scientific study of near-death experiences has its own origin story, and it begins with a young philosophy student sitting in a college classroom in 1965, hearing something that would change the course of his life—and, eventually, the landscape of modern consciousness research.

That student was Raymond Moody. And the story he heard, told by a local psychiatrist named George Ritchie, was about dying—and coming back. Ritchie had been a young soldier at Camp Barkley, Texas, when he was pronounced dead from double pneumonia. For roughly nine minutes, he had no vital signs. And yet, when he was revived, Ritchie described an experience so vivid, so structured, so utterly unlike anything Moody had encountered in his philosophical training, that it lodged in his mind and refused to leave.¹

A decade later, Moody published the book that would bring near-death experiences to the attention of the entire world. That book, and the research revolution it ignited, is the subject of this chapter. Because before we can evaluate the critics—before we can weigh Marsh’s arguments or Fischer and Mitchell-Yellin’s philosophical objections—we need to understand the research itself. Where did it come from? How has it grown? And is it as sloppy and biased as the skeptics claim?

The answer, I believe, will surprise you. What began as a collection of anecdotes from a curious philosopher-physician has matured into one of the most rigorously studied phenomena in the history of consciousness research. The field is not perfect. No field is. But the trajectory over five decades has been unmistakably toward greater rigor, better methodology, and stronger evidence.

That matters. It matters because when critics like Marsh dismiss NDE research as the work of biased enthusiasts, they are describing the field as it was in 1975—not as it is today. And the difference between the two is enormous.

Raymond Moody and the Birth of Modern NDE Research

Raymond Moody did not set out to study death. He earned a Ph.D. in philosophy from the University of Virginia before going on to complete a medical degree. He was not a mystic. He was not a religious zealot. He was a restless intellectual who asked questions most people were afraid to ask—and then went looking for answers.²

After hearing Ritchie’s account, Moody began quietly asking patients, students, and acquaintances whether they had ever come close to death and, if so, whether anything unusual had happened. He was stunned by the results. Person after person described experiences that shared remarkable similarities: leaving the body, passing through a dark space or tunnel, encountering a warm and brilliant light, meeting deceased relatives, experiencing an overwhelming sense of love and peace, and then being told—or choosing—to return.³

In 1975, Moody published Life After Life, a slim volume that presented the findings from his interviews with over 150 people who had come close to death. The book became an international sensation, selling millions of copies and coining the term “near-death experience”—a phrase that would become part of the common vocabulary of modern culture.⁴

Moody’s great contribution was his composite account—a synthesized narrative that wove together the most commonly reported features of NDEs into a single, coherent story. A dying man hears himself pronounced dead. He moves through a tunnel. He meets beings of light. He sees a panoramic review of his life. He approaches a border but is told to go back. He returns to his body, profoundly changed.⁵

This composite became enormously influential. It gave people a framework for understanding what had happened to them. Many NDE survivors had been afraid to speak about their experiences, fearing ridicule or dismissal. Moody’s book told them they were not alone—and that what they had experienced was part of a recognizable pattern.

But Life After Life also had real weaknesses, and any honest supporter of NDE research needs to acknowledge them. Moody himself did. His study was retrospective (meaning he interviewed people about past experiences rather than studying them in the clinical setting as they happened). His subjects, while diverse in their beliefs, were all Americans. He did not attempt systematic corroboration of their claims with medical records or independent witnesses. And his composite narrative, while striking, could create a misleading impression—as if every NDE contained all of these elements in a fixed order, when in fact most NDEs included only some of them.⁶

Marsh, to his credit, identifies this problem. He points out that Moody’s “nicely rounded account of an idealized” NDE preceded the actual data and may have shaped how later researchers and experiencers understood and reported their experiences (p. 34). Moody’s composite, Marsh argues, “lamentably fails to acknowledge the idiosyncratic content of each subject’s given narrative” (p. xix).⁷ Fischer and Mitchell-Yellin, too, note that the public fascination with NDEs owes much to Moody’s accessible presentation, which may have set expectations that colored subsequent reports.⁸

These are fair points. Moody’s work was pioneering, not definitive. He opened a door. What matters is what walked through it.

But we should also give Moody credit where it is due. He was not trying to prove an afterlife. He was trying to document a phenomenon that no one was talking about—and that many people were quietly experiencing in terrified isolation. Before Life After Life, most NDE experiencers had nowhere to turn. They had been through something extraordinary, and when they tried to tell someone—a doctor, a nurse, a family member—they were met with blank stares or gentle suggestions that perhaps they had been hallucinating. Sabom later noted that many of his patients had been completely unable to discuss their experiences with even their closest friends and relatives for fear of ridicule.⁵⁹ Moody gave these people a language. He gave them permission to speak. And in doing so, he cracked open a window that would let a flood of data pour in over the following decades.

Moody also deserves credit for his intellectual honesty. He never claimed to have proven life after death. He presented his findings tentatively, acknowledging that further research was needed. His philosophical training (he held a Ph.D. before completing his medical degree) made him cautious about sweeping conclusions—perhaps more cautious than the popular reception of his book would suggest. The media turned Life After Life into a sensation; Moody himself always insisted on the preliminary nature of his findings.⁶⁰

And the response from the public was overwhelming. By 1982, pollster George Gallup Jr. estimated that as many as eight million Americans had experienced something resembling an NDE. The phenomenon was not rare. It was not confined to any single demographic, religious tradition, or medical circumstance. It was everywhere—hiding in plain sight, waiting for someone to ask the right questions.⁶¹

Kenneth Ring: Putting Numbers to the Stories

If Moody opened the door, Kenneth Ring walked through it with a clipboard and a calculator. Ring, a professor of psychology at the University of Connecticut, recognized that Moody’s work, while fascinating, needed to be placed on a more systematic foundation. Anecdotes were a starting point, not a destination. The field needed structured interviews, standardized measurement tools, and statistical analysis.

In 1980, Ring published Life at Death: A Scientific Investigation of the Near-Death Experience, based on interviews with 102 people who had come close to death. Unlike Moody, Ring used a structured interview protocol and developed a quantitative scoring system—the “Weighted Core Experience Index” (WCEI)—to measure the depth and content of each person’s experience. This was a major step forward. It meant researchers could now compare NDEs in a standardized way, rather than relying on impressionistic descriptions.¹⁰

Ring confirmed the basic pattern Moody had identified: a core experience that included separation from the body, movement through a dark space, encounter with light, meeting other beings, and a decision to return. But he went further. He found that NDEs occurred across a range of circumstances—cardiac arrest, accidents, suicide attempts, serious illness—and that the core features remained remarkably consistent regardless of the cause of the near-death crisis.¹¹

Ring also became instrumental in building the institutional infrastructure of the field. He was a key figure in founding the International Association for Near-Death Studies (IANDS), the first scholarly organization devoted exclusively to NDE research. IANDS launched its own peer-reviewed publication, initially called Anabiosis and later renamed the Journal of Near-Death Studies, which remains the primary scholarly journal in the field today.¹²

Ring’s later work moved in directions that drew criticism—including from within the NDE research community itself. His 1984 book Heading Toward Omega explored the transformative and spiritual dimensions of NDEs and advanced interpretations that many considered speculative, including the idea that NDE experiencers represented an evolutionary advance in human consciousness. Michael Sabom, a fellow NDE researcher and a committed Christian, pushed back against Ring’s New Age interpretations, arguing that Ring had gone beyond the data and was drawing conclusions from an unrepresentative sample of IANDS-affiliated experiencers. Sabom conducted his own study of a more random sample and found that Ring’s spiritual conclusions did not hold up.¹³

I mention this internal debate for an important reason. Marsh and other critics sometimes suggest that NDE researchers are a monolithic group of true believers who never challenge each other. That is simply not the case. The field has always contained vigorous internal disagreement—about methodology, about interpretation, about the boundaries between evidence and speculation. Sabom’s critique of Ring is a perfect example. NDE researchers are not a cult. They are a community of scholars who argue passionately among themselves.

It is also worth noting that Ring’s later speculations, while controversial, do not invalidate his earlier empirical contributions. His Weighted Core Experience Index remains a useful tool. His documentation of core NDE features has been confirmed by every major subsequent study. And his role in building IANDS gave the field an institutional home that has sustained decades of productive research. We should evaluate Ring’s empirical work on its own merits—and those merits are substantial—without letting the controversies over his later interpretive frameworks overshadow his scientific contributions.

Meanwhile, other researchers were contributing during this same early period. In 1978, Maurice Rawlings, a cardiologist, published Beyond Death’s Door, which drew attention to an aspect of NDEs that other researchers had largely overlooked: distressing or hellish experiences. Rawlings was in a unique position to document these cases because he was present during many of his patients’ cardiac arrests and could interview them immediately after resuscitation. He observed that many patients who recalled terrifying experiences—screams, darkness, encounters with demonic figures—had suppressed or forgotten those memories when interviewed months or years later. This raised important questions about the reliability of retrospective NDE research and suggested that the predominantly positive picture painted by Moody and Ring might be incomplete.⁶²

In 1982, the well-known pollster George Gallup Jr. published Adventures in Immortality, the most comprehensive statistical survey of NDEs conducted up to that point. Gallup found that NDE reports cut across demographic lines—age, gender, education, religious background, and geographic location. The experience did not seem to favor any particular group. Gallup, a committed Christian, remained cautious about drawing metaphysical conclusions, but he noted that the consistency of the reports across such a diverse population was striking.⁶³

Also in the early 1980s, Margot Grey in the United Kingdom published Return from Death, which extended Ring’s findings to a British population and added further data on the transformative effects of NDEs. And Carol Zaleski’s Otherworld Journeys (1987) placed modern NDEs in historical context, comparing them with medieval accounts of otherworldly visions and raising important questions about how culture shapes the interpretation—though not necessarily the reality—of these experiences.⁶⁴

The point is this: by the mid-1980s, NDE research was no longer the work of a single researcher or a handful of enthusiasts. It was a growing, international, multidisciplinary field involving cardiologists, psychiatrists, psychologists, philosophers, nurses, and pollsters. Theological voices, both skeptical and sympathetic, were beginning to join the conversation as well. The question was no longer “Do NDEs happen?” Everyone agreed they did. The real question—the question that would drive the next forty years of research—was what they meant. Were they evidence of consciousness surviving the death of the body? Or were they the last, spectacular tricks of a dying brain?

Michael Sabom: The Skeptic Who Changed His Mind

Few stories in the history of NDE research are as compelling as Michael Sabom’s. Sabom was a cardiologist—trained at the University of Florida, later teaching at Emory University’s medical school. He was a scientist through and through. And when he first heard about Moody’s claims at a seminar in 1976, his reaction was blunt: “I don’t believe it.”¹⁴

But a psychiatric social worker named Sarah Kreutziger challenged him to ask his own cardiac patients about their experiences. Sabom agreed—expecting to debunk the whole thing. He assumed he would find a jumble of vague, contradictory stories that could easily be explained by medical factors. He was wrong. The third patient he asked reported a near-death experience.¹⁵

From May 1976 through March 1981, Sabom conducted a prospective study (meaning he interviewed patients in the clinical setting, soon after their experiences, rather than tracking them down years later) of cardiovascular patients who had suffered acute cardiac events. Of the 78 patients he enrolled, 33 percent reported out-of-body or near-death experiences. Sabom was meticulous. He checked patients’ stories against their medical records. He interviewed attending physicians and nurses. He excluded patients with psychiatric illness or significant mental impairment. He asked patients to describe their resuscitations in exacting detail.¹⁶

Then Sabom did something brilliant. He set up a control group. He took cardiac patients who had not reported NDEs and asked them to describe what they thought a resuscitation procedure would look like. If NDE patients were simply guessing—reconstructing events from general knowledge, television shows, or medical conversations—then the control group should perform about as well.

They did not. Eighty percent of the control group made at least one major error in describing a resuscitation. The NDE patients, by contrast, provided accurate, detailed descriptions that were specific to their own procedures—including details that would not apply to a different patient’s resuscitation.¹⁷

Sabom published his findings in Recollections of Death: A Medical Investigation (1982). It was a landmark study—the first prospective, clinically rigorous investigation of NDEs by a practicing cardiologist. And it turned Sabom from a skeptic into a convinced researcher. As he put it, he had started his investigation assuming that “with death you are dead and that is the end of it.” The evidence changed his mind.¹⁸

Sabom went on to publish a second book, Light and Death (1998), which included his detailed analysis of the famous Pam Reynolds case—one of the most extensively documented NDEs in the literature, occurring during a hypothermic cardiac arrest procedure (a surgery where the patient’s body temperature is lowered, the heart is stopped, and the blood is drained from the brain). We will examine that case in detail in Chapter 5. For now, the point is this: Sabom brought something to NDE research that had been missing. He brought the rigor of a skeptical, clinically trained cardiologist who was willing to let the evidence lead wherever it went.¹⁹

There is another dimension of Sabom’s contribution that often goes unappreciated. At the time of his first publication, he was teaching cardiology at Emory University’s prestigious medical school. He had nothing to gain and much to lose by publishing a study that supported the reality of out-of-body perceptions during cardiac arrest. The medical establishment in the early 1980s was overwhelmingly materialist in its assumptions about consciousness. To claim that patients were accurately perceiving events while clinically dead was to invite professional skepticism, if not ridicule. Sabom published anyway, because the data demanded it. He approached the subject not as an advocate but as a detective, carefully cross-referencing each patient’s account against their medical records and the testimony of the medical professionals present during their resuscitations.⁶⁵

Sabom’s control group methodology also set an important precedent. Before Sabom, skeptics could reasonably argue that NDE patients were simply guessing correctly—that anyone with general knowledge of medical procedures could describe a resuscitation with apparent accuracy. Sabom demolished that argument. His control group of non-NDE cardiac patients, all of whom had been through similar procedures and had the same general medical knowledge, performed dramatically worse than the NDE patients when asked to describe what a resuscitation looks like. The NDE patients were not guessing. They were reporting specific details—details unique to their own individual resuscitations—with a degree of accuracy that general knowledge alone could not explain.⁶⁶

The Lancet Study: Pim van Lommel and the Gold Standard

If there is a single study that elevated NDE research from the margins of mainstream science to the pages of the world’s most respected medical journals, it is the prospective study published by Dutch cardiologist Pim van Lommel and his colleagues in The Lancet in 2001.²⁰

Van Lommel’s study was groundbreaking in its scope and design. Over a period of several years, his team interviewed 344 consecutive patients who had been successfully resuscitated after cardiac arrest in ten Dutch hospitals. This was not a cherry-picked sample. Every patient who survived cardiac arrest during the study period was included. Of these 344 patients, 62 (18 percent) reported some recollection of the period of unconsciousness, and 41 (12 percent) reported a deep or core NDE.²¹

Think about that for a moment. Van Lommel did not go looking for people who claimed to have had NDEs. He cast a wide net and caught everything. And what he found was that a significant minority of cardiac arrest survivors—people whose hearts had stopped, whose brains should have been incapable of producing any conscious experience at all—reported vivid, lucid, structured experiences.

But the study went further. Van Lommel’s team compared the NDE group with the non-NDE group across a wide range of medical, psychological, and demographic variables. They found no significant differences in the medical factors that skeptics typically point to: the duration of cardiac arrest, the medications administered, the degree of oxygen deprivation, or the presence of fear before the event. In other words, the standard physiological explanations could not account for why some patients had NDEs and others did not.²²

Van Lommel also conducted a longitudinal follow-up, re-interviewing both groups two years and eight years after their cardiac arrests. He found that the NDE group showed significantly greater life changes—increased compassion, reduced fear of death, enhanced spiritual awareness—and that these changes persisted over time. The non-NDE group showed no comparable transformation.²³

Van Lommel began his career as a naturalist—someone who assumed that death was simply the end. But his encounters with patients who described vivid experiences during cardiac arrest forced him to reconsider. He spent twenty years studying the phenomenon before publishing his landmark paper. His 2007 book Consciousness Beyond Life synthesized his findings and those of the broader field, showing an exceptional command of the relevant literature.²⁵

What makes van Lommel’s study especially significant for our purposes is this: it was conducted in the Netherlands, where most people do not believe in life after death. If NDEs were simply the product of cultural expectations—if people see heaven because they expect to see heaven—then you would expect far fewer NDEs in a largely secular Dutch population. But the Dutch patients reported the same core experiences as Americans, Indians, and people from every other culture that has been studied. The experiences were remarkably consistent across a population that had little cultural reason to expect them.²⁶

Sam Parnia and the AWARE Studies

If van Lommel established the gold standard for retrospective-prospective NDE research, Sam Parnia set out to push the boundaries even further. Parnia, a British physician and researcher specializing in resuscitation medicine, wanted to do something no one had accomplished: design an experiment that could objectively verify whether patients were actually perceiving events from a vantage point outside their bodies during cardiac arrest.

His approach was elegantly simple. In hospital rooms where cardiac arrests were likely to occur, Parnia’s team placed visual targets—images on shelves positioned near the ceiling, visible only from above. The idea was straightforward: if patients really were leaving their bodies and floating above the scene (as so many reported), they should be able to identify the targets. If they were simply hallucinating or reconstructing events from overheard conversations, they would not be able to describe images they had never seen from their normal vantage point.²⁷

The first AWARE (AWAreness during REsuscitation) Study, launched in 2008 and published in Resuscitation in 2014, enrolled 2,060 cardiac arrest patients across fifteen hospitals in the United States, United Kingdom, and Austria. Of those patients, 330 survived, and 140 were interviewed. Of those interviewed, 55 reported some recollection during the period of cardiac arrest, and 9 reported experiences consistent with NDEs.²⁸

Now, here is where the story gets both frustrating and fascinating. None of the patients who reported NDEs had their cardiac arrest in a room where visual targets were present. The targets were in place, but the arrests did not happen in those rooms—a logistical problem that Parnia acknowledged openly. So the visual target component of the study was, technically, inconclusive.²⁹

However, one case from the AWARE study was remarkable. A 57-year-old social worker who suffered a cardiac arrest at Southampton General Hospital reported a detailed out-of-body experience. He described looking down at his own body, seeing the people around him, and hearing an automated external defibrillator (AED) say, “Shock the patient.” He also described the device being used twice. When Parnia checked the medical records, everything matched. The AED that was used does indeed have a voice prompt, and it was activated twice during the resuscitation. Italian anesthesiologist Enrico Facco later calculated, based on the timing of the AED’s algorithm, that the patient’s conscious awareness must have persisted for at least three minutes during the cardiac arrest.³⁰

Three minutes. During a cardiac arrest. When the brain should have been completely shut down.

The AWARE II Study followed, and its results were published in 2023 in Resuscitation. Again, no patient who experienced an NDE happened to be in a room with visual targets in the correct position. But the study did produce EEG (electroencephalography, a method of measuring electrical activity in the brain) data from some patients during cardiac arrest. Notably, two patients had EEG data, but neither was among those who reported conscious recollection. In other words, the patients who did report vivid NDEs had no EEG data showing brain activity that could explain their experiences.³¹

The AWARE studies have been a source of both hope and frustration in the NDE research community. The experimental design was excellent. The logistical challenges of studying a phenomenon that occurs unpredictably during medical emergencies, however, are enormous. Cardiac arrests do not happen on schedule. Patients cannot be positioned in advance. The visual target method, while scientifically sound in principle, has proven extraordinarily difficult to implement in practice.³²

Does this mean the AWARE studies failed? Not at all. The confirmed case of the Southampton social worker is a powerful piece of evidence in its own right. And the broader finding—that some patients report structured, vivid, verifiable experiences during periods when their brains show no measurable activity—remains one of the most important challenges facing the physicalist account of consciousness.

There is a broader lesson here about the nature of scientific investigation. The AWARE studies attempted to do something genuinely new: to apply experimental methodology to a phenomenon that occurs spontaneously and unpredictably during life-threatening medical emergencies. This is extraordinarily difficult—far more difficult than studying, say, the effects of a drug in a controlled laboratory setting. The fact that the experimental component has not yet produced a “home run” result does not mean the method is wrong. It means the phenomenon is hard to capture under controlled conditions. But the non-experimental evidence from the same studies—patients reporting accurate, verifiable observations during cardiac arrest—is itself profoundly significant.⁶⁷

It is also worth noting Parnia’s personal journey. For most of his career, Parnia publicly maintained that the NDE evidence supported the possibility that consciousness can persist during cardiac arrest even when the brain shows no measurable activity. His book Erasing Death (2013) presented a careful case for this position. More recently, some of his public statements have appeared to move in a more ambivalent direction, prompting concern among NDE researchers who had regarded him as an ally. The authors of The Self Does Not Die note this shift with some dismay, observing that Parnia’s own earlier case studies constitute some of the strongest evidence in the field—evidence that sits uneasily with any purely materialistic framework.⁶⁸

Whatever Parnia’s evolving interpretations, however, the data from his studies stands on its own. The Southampton social worker’s accurately observed resuscitation during a documented cardiac arrest is a fact. It requires explanation. And the explanation that fits most naturally is the one the patient himself would have given: he was conscious and observing from outside his body, even while his heart had stopped.

Jeffrey Long and the Power of Large Numbers

While van Lommel and Parnia were conducting clinical studies in hospital settings, radiation oncologist Jeffrey Long took a different approach. He built a database.

In 1998, Long founded the Near Death Experience Research Foundation (NDERF) and created an online questionnaire that allowed NDE experiencers around the world to submit detailed accounts of their experiences. The questionnaire was carefully designed to capture the full range of NDE features using standardized questions, making it possible to analyze large numbers of reports in a systematic way.³³

By the time Long published Evidence of the Afterlife in 2010, the NDERF database contained over 1,300 NDE accounts. Today, it holds more than 5,000. Long analyzed 613 accounts in detail for his book, applying rigorous criteria to identify patterns and test hypotheses. His findings confirmed and extended the work of previous researchers: the core features of NDEs appeared consistently across ages, cultures, religions, and medical conditions.³⁴

Long’s contribution is significant because of the sheer scale of his dataset. When you have hundreds or thousands of cases, you can identify patterns that are invisible in smaller studies. You can test whether NDEs differ based on the medical circumstances, the patient’s cultural background, or their prior beliefs about death. Long found that they do not—at least not in their core features. A cardiac arrest patient in Iowa and a drowning victim in India report the same basic elements, even though their cultural frames of reference are completely different.³⁵

Critics have questioned the reliability of self-reported online data, and that is a legitimate concern. People filling out an online form are not being interviewed by a trained researcher in a clinical setting. There is no way to verify their medical records directly. But Long has taken steps to address this. The NDERF questionnaire includes internal consistency checks, and Long has published detailed analyses showing that the self-reported data aligns closely with the findings of clinical studies.³⁶

Long also co-authored, with Paul Perry, the book God and the Afterlife (2016), which examined the spiritual and religious dimensions of NDE reports in the NDERF database. What makes Long’s work especially relevant for our purposes is his finding that NDEs occurring during cardiac arrest—when the brain is at its most compromised—are, if anything, more vivid, more detailed, and more coherent than NDEs occurring under less medically severe circumstances. This is exactly the opposite of what the dying brain hypothesis predicts. A brain that is more severely compromised should produce more confused, more fragmented experiences—not clearer ones. Long’s large dataset gives this finding statistical weight that no single case study could provide.⁷⁴

Bruce Greyson: The Quiet Giant

If NDE research has a quiet giant—a figure whose steady, decades-long contributions have done more than perhaps anyone else to establish the field’s scientific credibility—it is Bruce Greyson. A professor of psychiatry at the University of Virginia, Greyson has been studying NDEs since the late 1970s. His work is meticulous, cautious, and deeply grounded in the standards of academic medicine and psychiatry.³⁷

Greyson’s most important methodological contribution is the Greyson NDE Scale, a standardized questionnaire that allows researchers to assess whether an experience qualifies as an NDE and to measure its depth. The scale consists of sixteen questions covering four domains: cognitive features (such as a life review or sense of understanding), affective features (such as feelings of peace or joy), paranormal features (such as out-of-body perception or precognition), and transcendental features (such as encountering other beings or reaching a border). A score of seven or above qualifies as an NDE.³⁸

This scale has become the standard measurement tool in NDE research worldwide. Before Greyson, researchers were often talking past each other—one calling something an NDE that another would classify as a simple hallucination or a vivid dream. The Greyson Scale gave the field a common language and a reliable way to distinguish NDEs from other altered states of consciousness.

Greyson has also contributed significant research on the aftereffects of NDEs—the long-term psychological, spiritual, and behavioral changes that experiencers report. His studies, like van Lommel’s, have shown that these changes are profound, persistent, and qualitatively different from the changes produced by other close brushes with death. People who nearly die but do not have an NDE do not show the same pattern of transformation.³⁹

In 2021, Greyson published After: A Doctor Explores What Near-Death Experiences Reveal about Life and Beyond, a summation of his career’s work. The book is marked by the same careful, measured tone that characterizes all of Greyson’s writing. He does not overclaim. He does not sensationalize. He simply presents the evidence and lets it speak. And the evidence, as he presents it, is formidable.⁴⁰

Janice Holden and the Veridical Evidence

Of all the lines of evidence in NDE research, none is more important—or more troubling for skeptics—than veridical perception. A “veridical NDE” is one in which the person reports perceiving events or details during their near-death crisis that they could not have perceived through normal sensory channels—and those reports are later confirmed by independent sources.

Janice Miner Holden, a professor at the University of North Texas and longtime editor of the Journal of Near-Death Studies, conducted the most comprehensive analysis of veridical NDE reports ever undertaken. In 2009, she searched the entire published literature for every case of apparently veridical perception during an NDE reported since 1975. She found 107 cases, from thirty-nine different publications by thirty-seven different authors or research teams.⁴¹

Holden applied a strict standard. If even a single detail in a person’s report was found to be inaccurate, the entire case was classified as containing error. Despite this stringent criterion, she found that only 8 percent of cases involved any inaccuracy at all. Meanwhile, 37 percent of cases—almost five times as many—were determined to be completely accurate by independent, objective verification.⁴²

The remaining 55 percent of cases fell into a middle category: the person’s report was neither clearly confirmed nor clearly disconfirmed, often because the relevant witnesses or records were no longer available. This is not surprising. Many NDE reports are gathered years after the event, by which time corroborating evidence may have been lost. What is remarkable is the ratio: for every case with an error, there were nearly five cases with confirmed accuracy. That is not the fingerprint of a hallucination.

Holden’s analysis, published in the landmark Handbook of Near-Death Experiences: Thirty Years of Investigation (2009), which she co-edited with Greyson and Debbie James, remains one of the most important pieces of evidence in the entire NDE literature. It provides a systematic, quantitative foundation for the claim that at least some NDE experiencers genuinely perceive events from a vantage point outside their physical bodies.⁴⁴

The Self Does Not Die: A Comprehensive Case Collection

In 2016, researchers Titus Rivas, Anny Dirven, and Rudolf Smit published The Self Does Not Die: Verified Paranormal Phenomena from Near-Death Experiences, a book that represents perhaps the most comprehensive collection of evidential NDE cases ever assembled. The second edition, published more recently, expanded the collection further.⁴⁵

The book documents over 100 cases of verified paranormal phenomena occurring during NDEs—cases where patients reported information they could not have obtained through normal sensory channels, and where that information was subsequently confirmed by independent sources. The cases are organized by type: veridical perceptions during cardiac arrest, perceptions of events in distant locations, perceptions by patients who were completely unconscious, cases involving telepathy, cases involving information about deceased persons unknown to the experiencer, and more.

What makes The Self Does Not Die especially valuable is its rigor. For each case, the authors document the original source, the verification method, and the specific details that were confirmed. They do not rely on secondhand accounts or unverifiable anecdotes. They track down the original researchers, the medical records, and the independent witnesses wherever possible.

This book matters because it directly addresses one of the most common skeptical objections: that veridical NDE cases are merely isolated anecdotes that cannot support broad conclusions. When you have over 100 documented, verified cases from dozens of independent researchers across multiple countries and decades, you are no longer dealing with anecdotes. You are dealing with a body of evidence. And that body of evidence is remarkably consistent in what it shows: people who are clinically dead or deeply unconscious sometimes perceive events accurately—events they should have no way of knowing about.⁴⁶

Other Key Researchers and Contributions

No history of NDE research would be complete without mentioning several other major contributors who have helped build the field into what it is today.

Peter Fenwick, a highly respected British neuropsychiatrist, has been one of the leading clinical authorities on NDEs in the United Kingdom. His research, based on over 300 NDE cases, has been particularly important in documenting deathbed visions and related phenomena that corroborate the NDE evidence. Fenwick was also a collaborator on Parnia’s AWARE studies, lending his neurological expertise to the project.⁴⁷

Melvin Morse, a pediatrician, made an important contribution by studying NDEs in children. Children, especially very young children, have had less cultural exposure to NDE narratives, making their reports especially interesting from an evidential standpoint. Morse’s Closer to the Light (1990) documented NDEs in children as young as three years old who described the same core features reported by adults—despite having virtually no cultural framework for understanding what had happened to them.⁴⁸

Penny Sartori, a former intensive care nurse in Wales, conducted her own five-year prospective study of NDEs in hospitalized intensive care patients. Her study is particularly noteworthy because, like Sabom, she tested the accuracy of NDE patients’ out-of-body perceptions against a control group. She found that patients who reported OBEs gave significantly more accurate descriptions of events and equipment used during their resuscitations than patients who were resuscitated but did not report NDEs. Her conclusion was striking: the research demonstrated the possibility of consciousness existing apart from the brain.⁴⁹

Sartori’s study also included an extraordinary case that went beyond mere veridical perception. One of her patients, designated Patient 10, not only described his resuscitation accurately from a vantage point outside his body but also experienced an unexplained physical healing during or after his NDE. His badly broken shoulder, which had been awaiting surgery, was found to have healed on its own—a development the attending orthopedic surgeon could not explain. While this is an isolated case and should not be over-interpreted, it adds another dimension to the mystery of what happens during these experiences. Sartori published this case in a peer-reviewed journal, with co-authors Paul Badham and Peter Fenwick, ensuring that it received proper scholarly scrutiny.⁷³

Chris Carter, a philosopher of science, published Science and the Near-Death Experience (2010), which provides one of the most comprehensive and accessible critiques of skeptical objections to NDEs. Carter systematically dismantles the major neurological explanations—hypoxia, endorphins, ketamine, temporal lobe seizures, the dying brain hypothesis—showing that none of them can account for the full range of NDE features, and especially not for the veridical evidence. We will draw heavily on Carter’s arguments throughout this book.⁵⁰

And finally, J. Steve Miller, a researcher and author who has contributed several important books to the field, including Near-Death Experiences as Evidence for the Existence of God and Heaven, Deathbed Experiences as Evidence for the Afterlife, and Is Christianity Compatible with Deathbed and Near-Death Experiences? Miller’s work is particularly valuable for Christian readers, as he carefully examines the compatibility of NDE evidence with biblical theology.⁵¹

The Peer-Reviewed Record

One of the most important facts about NDE research—and one that the critics often downplay—is the sheer volume of peer-reviewed, published scholarship in the field. NDEs are not a fringe topic discussed only in popular paperbacks and daytime television shows. They are the subject of serious, ongoing scientific investigation published in respected journals.

By 2005, more than 900 articles on NDEs had been published in scholarly, peer-reviewed literature, appearing in journals as diverse as Psychiatry, The Lancet, Critical Care Quarterly, the Journal of Near-Death Studies, the American Journal of Psychiatry, the British Journal of Psychology, Resuscitation, and Neurology. In the thirty years following Moody’s Life After Life, fifty-five researchers or research teams published at least sixty-five studies examining more than 3,500 individual NDEs.⁵²

That number has only grown since 2005. The AWARE studies, van Lommel’s follow-up publications, Greyson’s continuing output, and the work of newer researchers have added substantially to the literature. The field now encompasses prospective clinical studies, retrospective analyses, cross-cultural investigations, pediatric research, neuroimaging studies, and philosophical analyses, all published in peer-reviewed venues.

One particularly noteworthy development is the Immortality Project, a three-year, five-million-dollar research initiative led by philosopher John Martin Fischer of the University of California, Riverside. The project, funded by the John Templeton Foundation, supported scientific, philosophical, and theological studies of the possibility of an afterlife. Fischer is the same philosopher who co-authored the skeptical analysis of NDEs that we will engage throughout this book. The very existence of such a project—at a major research university, with significant funding, led by a prominent philosopher—testifies to the seriousness with which the academy now takes the questions raised by NDE research, even when the principal investigators are skeptical of the survivalist interpretation.⁷⁵

This is not the profile of a pseudoscience. Pseudosciences do not generate sustained, productive research programs spanning five decades. They do not produce landmark publications in The Lancet and Resuscitation. They do not attract serious physicians, psychiatrists, and philosophers who stake their careers on the topic. They do not generate multimillion-dollar research initiatives at leading universities. The NDE research field, whatever its imperfections, has earned its place at the table of legitimate scientific inquiry.

Marsh’s Critique: Are NDE Researchers Biased?

Now we come to a question that Marsh raises with particular force: are NDE researchers biased? In his Chapter 3, Marsh examines the interpretations offered by the key NDE researchers whose work he evaluates and finds “marked bias” in their handling of the evidence. He argues that researchers like Moody, Ring, Sabom, and others have allowed their personal beliefs to color their interpretation of the data—seeing evidence for an afterlife where a more dispassionate observer would see only the workings of a disturbed brain.⁵³

This is a serious charge, and it deserves a serious response.

First, let me grant the obvious. Bias is a real problem in every area of science. No researcher is a blank slate. Everyone brings assumptions, expectations, and prior commitments to their work. This is true of NDE researchers. It is also true of NDE skeptics—including Marsh himself. The question is not whether bias exists, but whether it is so severe that it fatally compromises the research.

Second, let me point out something that Marsh’s critique often overlooks: many of the most important NDE researchers began as skeptics. Moody was a philosophy student with no particular interest in the afterlife. Sabom was a cardiologist who flatly disbelieved the claims until his own patients forced him to reconsider. Van Lommel was a naturalist who assumed death was the end. Parnia is a resuscitation specialist who designed experiments precisely because he wanted objective data, not testimonials. Greyson is a university psychiatrist who has spent his entire career subjecting NDE claims to the most rigorous standards of evidence available.⁵⁴

These are not people who went looking for evidence of an afterlife because they desperately wanted to find it. They are people who encountered evidence they could not explain and followed it where it led. That is not bias. That is science.

Third, Marsh’s critique of bias focuses heavily on Moody’s early work and on the “idealized” composite NDE narrative. Fair enough—we have already acknowledged that Moody’s composite was problematic. But it is a mistake to judge the entire field by its earliest and least rigorous work. That would be like judging modern physics by the shortcomings of Galileo’s telescope. The field has matured enormously since 1975. The prospective studies by Sabom, van Lommel, Parnia, and Sartori use methods that directly address the methodological concerns Marsh raises. If Marsh wants to argue that NDE research is fundamentally flawed, he needs to engage with these later studies on their own terms—not simply point to the limitations of Moody and declare the case closed.⁵⁶

Fourth, there is a deeper problem with Marsh’s bias critique. He selected eight key texts for evaluation in his book, focusing on what he calls the “who’s who” of NDE research (p. xvi). But his selection is tilted heavily toward older works. He does not engage with The Self Does Not Die and its 100-plus verified cases. He does not engage with Holden’s systematic veridical analysis. He does not engage with the full range of post-2000 clinical research. By limiting his analysis to a narrow selection of sources, Marsh creates an incomplete picture of the field—and then criticizes that incomplete picture for being insufficiently rigorous.⁵⁷

That is not an argument against NDE research. It is an argument against Marsh’s incomplete engagement with it.

I want to be fair to Marsh here. His book was published in 2010, and some of the strongest post-Moody research was published around the same time or later. Marsh may not have had access to every recent publication when he was writing. But even within the literature available to him, his engagement with the veridical evidence is surprisingly thin. Van Lommel’s Lancet study was published in 2001—nearly a decade before Marsh’s book. Sabom’s Light and Death, with its detailed analysis of the Pam Reynolds case, came out in 1998. Holden’s comprehensive veridical analysis appeared in the Handbook in 2009. These were available. The question is why Marsh’s engagement with them is so limited.

Here is what I think happened. Marsh is a neurophysiologist. He is brilliant in his own domain. His analysis of temporal lobe function, dream-state neurophysiology, and the pharmacological effects of endorphins and ketamine is detailed and technically impressive. But when it comes to the veridical evidence—the cases where patients report objectively verifiable information from outside their bodies—Marsh shifts from detailed engagement to cursory dismissal. He seems to treat veridical claims as peripheral curiosities rather than as the evidential core of the NDE debate. In my view, this is a serious oversight. The veridical evidence is not a side issue. It is the issue. If even a handful of patients have accurately perceived events during a period when their brains were demonstrably inactive, then no amount of neurophysiological theorizing about what a dying brain could produce is sufficient to explain the phenomenon.⁶⁹

Fifth, and finally, it is worth asking a question that rarely gets asked: is Marsh himself biased? He enters the discussion with a clear prior commitment to a neurophysiological explanation. His stated thesis from the very introduction is that ECEs (his term for NDEs) are “generated by metabolically disturbed brains especially during the period when they are regaining functional competence” (p. xvi). That is not a neutral starting point. That is a conclusion looking for support. And while Marsh brings impressive neurological expertise to the task, his determination to fit every piece of NDE evidence into a brain-based framework sometimes leads him to dismiss evidence that does not cooperate with his thesis rather than grappling with it on its own terms.⁷⁰

I am not saying Marsh is dishonest. I am saying he is human. The same biases he identifies in NDE researchers—the tendency to see what you expect to see, to interpret ambiguous data in light of prior commitments—apply equally to NDE skeptics. We all have lenses. The question is not whether Marsh has a lens, but whether his lens allows him to see the full picture. I believe it does not. And I believe the chapters ahead will show why.

The Maturation of the Field

Let me pull all of this together. When Marsh and other critics characterize NDE research as biased, anecdotal, and methodologically weak, they are describing a version of the field that belongs to the late 1970s. The field has changed. Dramatically.

In 1975, we had Moody’s anecdotal collection. By 1982, we had Sabom’s prospective clinical study with a control group. By 2001, we had van Lommel’s multi-hospital prospective study published in The Lancet. By 2009, we had Holden’s comprehensive analysis of 107 veridical cases. By 2014, we had Parnia’s AWARE study using experimental methodology. By 2016, we had The Self Does Not Die with its exhaustive case documentation. And the work continues.

The trajectory is clear. Each generation of researchers has addressed the weaknesses of the previous one. Moody collected stories; Ring quantified them. Sabom tested them against medical records and control groups. Van Lommel conducted a multi-center prospective study. Parnia designed experiments. Holden systematically catalogued and evaluated the veridical evidence. Rivas, Dirven, and Smit compiled the most comprehensive case collection in the field’s history.

Is the field perfect? Of course not. No field is. There are legitimate debates about methodology, sample sizes, the reliability of self-report, and the interpretation of ambiguous cases. These debates are signs of a healthy science, not a failing one. The question for the skeptic is not whether NDE research has limitations (it does), but whether those limitations are sufficient to explain away the entire body of evidence. I am convinced they are not.

Consider what would be required to dismiss this evidence. You would need to explain why thousands of people across dozens of cultures and medical contexts report remarkably similar core experiences. You would need to explain why these experiences are lucid, coherent, and structured—the opposite of what a confused, oxygen-starved brain typically produces. You would need to explain why some of these patients accurately report events they could not have perceived through normal sensory channels—events confirmed by independent witnesses and medical records. You would need to explain why Holden’s review found only an 8 percent error rate in veridical reports, when random hallucination should produce errors far more often. You would need to explain why Sabom’s control group performed so much worse than his NDE patients. You would need to explain why van Lommel found no physiological differences between patients who had NDEs and those who did not. And you would need to explain all of this without invoking the simplest hypothesis: that these patients experienced what they say they experienced.⁷¹

No skeptic has yet managed to do all of this. Not Marsh. Not Fischer and Mitchell-Yellin. Not Susan Blackmore. Not Keith Augustine. Not Kevin Nelson. Each has offered partial explanations for some features of some NDEs. But no one has produced a comprehensive, evidence-based explanation that accounts for the full range of NDE phenomena—especially the veridical cases. That gap is not a minor inconvenience for the skeptical position. It is a fundamental problem. And it is the problem this book will press again and again in the chapters to come.

Why the History Matters

You might be wondering: why devote an entire chapter to the history of NDE research? Why not just jump straight to the evidence and the arguments?

Because the history matters. It matters because the critics often frame their case as if they are confronting a naive, credulous, methodologically unsophisticated research tradition. Marsh treats NDE research as if it peaked with Moody and has made no significant progress since. Fischer and Mitchell-Yellin focus on two famous cases (Pam Reynolds and the dentures man) as if the entire evidential case rests on those two stories alone.⁵⁸

That framing is misleading. The field has been on a continuous upward trajectory in terms of rigor, scope, and evidential quality. When you understand the history, you understand that the critics are often attacking yesterday’s research with yesterday’s objections—while the field has already moved on to address those very concerns.

The history also matters because it shows us something important about the researchers themselves. These are not crackpots. They are cardiologists, psychiatrists, neuropsychiatrists, philosophers of science, intensive care nurses, and radiation oncologists. They work at major universities and publish in leading journals. Many of them began as skeptics. Their shift toward taking NDEs seriously was not driven by wishful thinking. It was driven by evidence they encountered in the course of their professional work—evidence that refused to fit neatly into the materialist framework they had been trained to accept.

Marsh is himself a serious scholar—a medical doctor with a D.Phil. from Oxford. I respect his expertise and his willingness to engage the NDE literature at a technical level. But his critique of the field’s credibility rests on a selective and outdated picture of the research. The field he criticizes is not the field that exists today.

Fischer and Mitchell-Yellin, too, are sharp philosophers who bring real intellectual firepower to the discussion. Their book raises important questions about how we evaluate NDE evidence, how we distinguish genuine perception from confabulation (the unconscious creation of false memories to fill in gaps), and how we apply Occam’s Razor (the philosophical principle that simpler explanations should be preferred) to extraordinary claims. We will engage their arguments in detail later. But their treatment of the NDE research landscape is, like Marsh’s, frustratingly narrow. They focus primarily on two famous cases—Pam Reynolds and the man with the missing dentures—and largely ignore the vast body of additional veridical evidence documented in the broader literature. As we have seen, that broader literature is substantial, growing, and methodologically rigorous.⁷²

Here is the bottom line. The critics want you to believe that NDE research is a house built on sand—anecdotes, wishful thinking, and sloppy methodology. The history tells a different story. It tells the story of a field that began with a curious philosopher, grew through the work of dedicated clinicians and scientists, weathered intense criticism, and responded to that criticism by becoming more rigorous with each passing decade. It tells the story of skeptics who became believers—not because they wanted to, but because the evidence left them no other honest option. And it tells the story of a body of data that stubbornly refuses to fit into the neat materialist box that critics keep trying to force it into.

In the chapters ahead, we will engage Marsh’s specific arguments in detail. We will examine his neurological explanations, his philosophical assumptions, and his theological critiques. We will hold his arguments up to the light of the best available evidence. And we will show, point by point, that the evidence for veridical NDEs is far stronger than he acknowledges.

But first, we needed to lay this foundation. You needed to meet the researchers. You needed to see the arc of the science. Because when the critics come calling—and they will, in every chapter of this book—it helps to know that the research they are challenging is not built on sand. It is built on five decades of increasingly rigorous, increasingly compelling scientific work.

The foundation is solid. Now let’s see what we can build on it.