A Scientific Look at Memories of Past Lives

1.0 Introduction: The Psychiatrist and the Unexplained

Dr. Ian Stevenson was not a fringe investigator of the paranormal, but a respected, mainstream psychiatrist who once chaired his department at the University of Virginia School of Medicine. Yet, for over four decades, he dedicated his career to a topic most scientists refused to touch: reincarnation. His research was built on a radical premise—that emotions, memories, and even physical features could be passed on from one life to another. This article delves into the remarkable case files of Dr. Stevenson, exploring the most notable types of evidence he documented in his quest to apply scientific rigor to one of humanity's most enduring questions.

2.0 From Mainstream Medicine to Paranormal Inquiry

Before embarking on his controversial research, Dr. Stevenson had a distinguished and conventional academic career. His early work focused on biochemistry, internal medicine, and psychosomatic illness, exploring questions like why one person’s response to stress might be asthma and another’s high blood pressure. His credentials established him as a serious figure within the medical community, holding several key positions at the University of Virginia for fifty years.

Chair of the Department of Psychiatry (1957–1967)
Carlson Professor of Psychiatry (1967–2001)
Founder of the Division of Perceptual Studies

However, Stevenson grew dissatisfied with what he saw as the reductionism he encountered in biochemistry and psychiatry. He believed that the two accepted pillars of human personality—genetics and environment—were insufficient to explain the full range of individual traits. This intellectual dissatisfaction drove him down a lonely path, framing his subsequent research as a direct response to the perceived limitations of mainstream science. He began to investigate whether reincarnation might possibly represent a third contributing factor.

3.0 The Core of the Research: Children's Spontaneous Memories

The foundation of Stevenson's four decades of research was the systematic documentation of over three thousand cases of young children who spontaneously claimed to remember past lives. These cases shared a distinct set of characteristics. The children typically began speaking of these memories between the ages of two and three, and the lives they recalled often ended suddenly or violently.

A quintessential example of this phenomenon is a case Stevenson investigated in Sri Lanka. A newborn girl showed an intense and unexplainable phobia of buses and baths, screaming whenever she was brought near either. Once she was old enough to speak, she described the life of a young girl who had drowned in a flooded rice paddy after being knocked into it by a bus. Stevenson’s investigation confirmed that the family of such a girl did, in fact, live just a few kilometers away, and the two families were believed to have had no prior contact.

These initial interviews and verifications were just the beginning. Stevenson went on to systematically categorize the specific types of evidence that consistently appeared across these thousands of cases.

4.0 Key Features Investigated in the Case Studies

In his meticulous approach, Stevenson documented several distinct and recurring features that he believed constituted a body of evidence worthy of serious scientific consideration.

4.1 Feature 1: Birthmarks and Defects Corresponding to Past-Life Injuries

One of the most visually striking and biologically challenging features Stevenson investigated was the presence of birthmarks and birth defects on children that corresponded to wounds—often fatal—on the body of the deceased person whose life they claimed to remember. His magnum opus on the subject, the two-volume Reincarnation and Biology, detailed 225 such cases.

Child's Physical Mark	Claimed Past-Life Injury	Significance
Malformed or missing fingers	Fingers lost by the previous person (e.g., in an accident).	The specific digital malformation on the child corresponded precisely to a documented injury on the deceased, rather than a generic defect.
Two distinct, small, circular marks	Gunshot wounds (one entrance, one exit).	The birthmarks mimicked both location and differing appearance (e.g., size, pigmentation) of entrance and exit wounds documented in autopsy reports.
A wide, scar-like mark around the head	A major skull surgery performed on the previous person.	The birthmark corresponded in shape and location to a specific, and often unusual, medical procedure.

4.2 Feature 2: Phobias and Unusual Behaviors

Stevenson found that children frequently exhibited behaviors and phobias that were highly unusual for their family or culture but were directly related to their claimed past life, especially the mode of death. These were not learned behaviors but seemed to emerge spontaneously at a very young age.

Phobias: The Sri Lankan girl’s intense phobia of buses and baths is a classic example. Her fear appeared long before she could verbalize the memories of drowning, linking the emotional trauma directly to the claimed cause of death.
Unusual Play: A child's play would sometimes revolve around the occupation of the person they claimed to be. Examples include a boy who was obsessively engrossed in play as a biscuit shopkeeper and a girl from India's high-status Brahmin caste who enjoyed sweeping and cleaning stools—behaviors consistent with her claimed life as a "sweepress."
Atypical Tastes and Personality: Stevenson documented a series of cases in Burma involving children who claimed to be deceased Japanese soldiers from World War II. These children showed strong preferences for Japanese attire and raw fish over their native food and clothing. Furthermore, they often exhibited personality traits like harshness and cruelty that were entirely uncharacteristic of their families but consistent with accounts of occupying soldiers.

This methodical collection of physical and behavioral evidence formed the core of Stevenson's life's work, but it was met with deep skepticism by the broader scientific community.

5.0 A Controversial Legacy: Scientific Reception and Criticism

Dr. Stevenson’s methodical approach earned him grudging respect from some quarters, but his work was largely met with a mixture of intrigue, outright dismissal, and sharp criticism from mainstream science.

5.1 Praise and Serious Consideration

Despite the controversial nature of his research, Stevenson's work was taken seriously by some prominent medical journals and colleagues.

Pathologist Lester S. King, writing in the Journal of the American Medical Association, described his collection of cases as "painstaking and unemotional" and concluded they were "difficult to explain on any assumption other than reincarnation."
The Journal of Nervous and Mental Disease devoted most of an issue to his research in 1977. In it, psychiatrist Harold Lief offered a now-famous assessment: Stevenson would either be known for "a colossal mistake" or as "the Galileo of the 20th century."

5.2 Major Scientific Criticisms

Most scientists, however, remained unconvinced, citing significant methodological and philosophical problems with his research. The primary arguments against his conclusions are as follows:

Anecdotal Evidence: Critics argued that Stevenson's entire body of work was built on personal testimony and stories (anecdotes) rather than on repeatable, controlled experiments, which are the gold standard of the scientific method.
Confirmation Bias: A common criticism was that Stevenson was too willing to believe his subjects and may have unintentionally given more weight to evidence that supported his hypothesis while not adequately accounting for errors, contradictions, or failed cases.
Cultural Influence: Some argued that the cases were merely cultural artifacts. In societies where reincarnation is a common belief, children might invent past-life stories, treating them as a kind of "imaginary playmate" to gain attention or approval.
Methodological Flaws: Investigators like philosopher Paul Edwards, former assistant Champe Ransom, and philosopher of religion Leonard Angel pointed to specific flaws. Angel told The New York Times that Stevenson did not follow proper standards, while others cited the use of leading questions and the fact that in many cases, the families of the child and the deceased had been in contact before Stevenson's investigation, allowing for the normal transmission of information.

6.0 Conclusion: The Cautious Pioneer's Final Assessment

Dr. Stevenson himself remained remarkably cautious in his public statements. He never claimed to have "proven" reincarnation. He frequently stated that his evidence "was not flawless and it certainly does not compel such a belief," while also maintaining that for the strongest cases, reincarnation remained the "best explanation."

His legacy continues today. His work is carried on by colleagues like Dr. Jim B. Tucker at the Division of Perceptual Studies at the University of Virginia, which Stevenson founded. In a final, intriguing experiment, Stevenson set a combination lock before he died and placed it in a filing cabinet. He told his colleagues he would "try to pass the code to them after his death," hoping to provide one last piece of evidence. His colleague Emily Williams Kelly explained how they might receive it: "Presumably, if someone had a vivid dream about him, in which there seemed to be a word or a phrase that kept being repeated... we would try to open it."

For forty years, Dr. Ian Stevenson conducted a lonely and often thankless quest to have a body of evidence taken seriously by the scientific world. Near the end of his life, he confided to a colleague that he believed he would die a failure because he had not achieved his primary goal of getting mainstream science to seriously consider reincarnation as a possibility—a poignant self-assessment that underscores the profound ambition of his lifelong work.

Dr. Ian Stevenson's Research into Reincarnation: A Comprehensive Briefing

Executive Summary

Dr. Ian Pretyman Stevenson (1918–2007) was a Canadian-born American psychiatrist and professor at the University of Virginia School of Medicine for fifty years. He is renowned for his four decades of international research into cases of young children who claimed to remember past lives. This work, for which he founded and directed the University of Virginia's Division of Perceptual Studies, involved the collection and analysis of approximately 3,000 cases worldwide.

Stevenson's central proposition was that reincarnation could be a viable explanation for these phenomena, acting as a potential third factor—alongside genetics and environment—in the development of human personality, including phobias, unusual abilities, and illnesses. His research was built upon several key pillars of evidence:

Testimonial Recall: Detailed statements made by young children (often aged two to three) about a previous life, which could often be verified against the life of a specific deceased individual.
Physical Correlates: The presence of birthmarks and birth defects on the children that corresponded with wounds, typically fatal ones, on the body of the deceased person whose life they claimed to remember.
Behavioral Patterns: The manifestation of unusual phobias, play activities, and personality traits that were uncharacteristic of the child's family and environment but consistent with the reported previous life.

While Stevenson amassed an extensive body of evidence, he remained scientifically cautious. He consistently maintained that his findings were "suggestive" of reincarnation but were "not flawless" and did not constitute absolute proof. His stated position was that for the strongest cases, reincarnation was the "best explanation" available.

The scientific reception to Stevenson's work has been deeply polarized. Supporters and some medical journals praised his methodology as "painstaking and unemotional," with psychiatrist Harold Lief famously suggesting he would be known as either a colossal failure or "the Galileo of the 20th century." However, the majority of the scientific community ignored his research. Critics charged that his conclusions were undermined by confirmation bias, reliance on anecdotal evidence, and methodological flaws such as asking leading questions. Despite the criticism, Stevenson's work established a new field of inquiry, which continues under researchers like Dr. Jim B. Tucker at the Division of Perceptual Studies.

1. Profile of Dr. Ian Stevenson

Academic and Professional Background

Education: Stevenson studied medicine at St. Andrews University in Scotland and graduated from McGill University with a B.S.c. in 1942 and an M.D. in 1943. He later studied psychoanalysis at the New Orleans and Washington Psychoanalytic Institutes, graduating in 1958.
Early Career: His initial research was in biochemistry, but he grew dissatisfied with its reductionism and shifted his focus to psychosomatic medicine and psychiatry. He held positions at institutions including the Alton Ochsner Medical Foundation, Tulane University, and Cornell University Medical College.
University of Virginia: Stevenson spent fifty years at the University of Virginia School of Medicine. His tenure included serving as Chair of the Department of Psychiatry (1957–1967), Carlson Professor of Psychiatry (1967–2001), and Research Professor of Psychiatry (2002–2007).
Division of Perceptual Studies: In 1967, he stepped down as department chair to dedicate himself to parapsychological research. He founded what is now known as the Division of Perceptual Studies, a research unit within the Department of Psychiatry and Neurobehavioral Sciences, to house this work.

Intellectual Influences and Motivations

Early Influences: Stevenson's interest in the paranormal was sparked in his childhood by his mother's extensive library on theosophy.
Core Scientific Question: He described the leitmotif of his career as the question of why, in response to stress, one person develops a specific illness (like asthma) while another develops something different (like high blood pressure). This led him to explore factors beyond genetics and environment.
Psychedelic Research: In the 1950s, he met Aldous Huxley and became one of the first academics to study the effects of L.S.D. and mescaline, including experimenting on himself. He described a three-day experience of "perfect serenity."
Rejection of Orthodoxy: His 1957 paper, "Is the human personality more plastic in infancy and childhood?," challenged the prevailing psychiatric orthodoxy and was not well received, preparing him for the later rejection of his paranormal research.

2. The Reincarnation Research Project

Origins and Funding

Stevenson's life's work began "almost by accident." In 1958, he won a contest sponsored by the American Society for Psychical Research for his essay, "The Evidence for Survival from Claimed Memories of Former Incarnations." This essay, a review of 44 published cases, led to two critical developments:

Eileen J. Garrett: The founder of the Parapsychology Foundation offered to fund a research trip to India and Ceylon (now Sri Lanka) in 1961. There, Stevenson was surprised by the prevalence of cases, finding 25 in India and 7 in Ceylon in just a few weeks.
Chester Carlson: The inventor of xerography provided substantial financial support and, upon his death in 1968, left a $1,000,000 bequest to the University of Virginia to continue Stevenson's research. This funding was pivotal, allowing Stevenson to create the Division of Perceptual Studies and travel extensively.

Scope and Methodology

Over four decades, Stevenson traveled the globe, sometimes covering over 50,000 miles a year, to investigate and document cases from diverse cultures, including India, Sri Lanka, Brazil, Lebanon, Turkey, and Alaska, as well as Europe and the United States. His methodology was characterized by a meticulous and systematic approach:

Painstaking Investigation: He conducted detailed interviews with the children and multiple witnesses, seeking to verify every statement made about the claimed past life against the facts of a deceased individual's life.
Elimination of Alternatives: According to journalist Tom Shroder, Stevenson actively searched for normal explanations for the child's knowledge, such as fraud, self-delusion, coincidence, or information learned through ordinary means.
Objective Reporting: In his publications, most notably Twenty Cases Suggestive of Reincarnation (1966), he presented his findings in an "objective, evenhanded manner," discussing the weaknesses of each case alongside its strengths. Reports included lengthy tables listing each claim, the informant for the claim, and the person who verified it.

3. Core Areas of Investigation and Key Findings

Stevenson's research focused on three primary categories of evidence that he believed could not be fully explained by heredity or environment.

Children's Testimonial Evidence

The foundation of the research was the spontaneous claims of very young children, typically between the ages of two and three, to remember a previous life. These memories often involved a life that ended suddenly or violently. In many cases, the children expressed an emotional longing for their "previous family." Stevenson documented numerous cases where the detailed statements of a child matched the life of a deceased individual who was a stranger to the child's family.

Example Case: A newborn girl in Sri Lanka exhibited a severe phobia of buses and being bathed. Once she could speak, she described having been an 8 or 9-year-old girl who was knocked by a bus into a flooded rice paddy and drowned. An investigation reportedly found the family of such a deceased girl living several kilometers away, with no known prior contact between the two families.

Physical Evidence: Birthmarks and Birth Defects

Stevenson considered physical evidence to be a crucial component of his research. He documented these findings in his massive 2,268-page, two-volume work, Reincarnation and Biology: A Contribution to the Etiology of Birthmarks and Birth Defects (1997).

Core Finding: The book presented 225 cases in which children claiming past-life memories had birthmarks or birth defects that closely corresponded to wounds on the body of the deceased person whose life they seemed to remember.
Verification: Stevenson sought to verify the correspondence by obtaining autopsy reports, police records, or eyewitness testimony regarding the deceased's injuries.
Examples of Correlated Lesions:
- Children with malformed or missing fingers who recalled lives of people who had lost fingers.
- A boy with two birthmarks resembling entrance and exit wounds who claimed to remember the life of someone who had been shot.
- A child with a three-centimeter-wide scar around her skull who recalled the life of a man who had undergone skull surgery.

Behavioral Evidence: Phobias, Play, and Personality

Stevenson documented unusual behaviors in children that appeared to be linked to the claimed past life.

Phobias: In a series of 387 cases, 36% of the children showed phobias related to the mode of death from the claimed previous life. These fears often appeared at a very young age, sometimes before the child had begun speaking about the past life.
Unusual Play: In a study of 278 cases, nearly a quarter of the children engaged in play that was thematically related to the previous person's life or occupation and was unusual for their family. One example involved a girl from a high-caste Brahmin family in India who described a life as a sweepress and enjoyed cleaning up the stools of her younger siblings.
Personality Traits: Stevenson co-authored a paper on Burmese children who claimed to have been Japanese soldiers killed in Burma during World War II. These children exhibited behaviors unusual for their culture but typical of the Japanese, such as a preference for raw fish and personality traits of industriousness and cruelty. Stevenson saw this as evidence for a "third component in the development of personality."

Xenoglossy

Stevenson also studied "xenoglossy," the ability to speak a language one has not learned. He investigated two cases where adults under hypnosis seemed to show rudimentary use of an unlearned foreign language. However, this aspect of his work was heavily criticized by linguists like Sarah Thomason, who concluded that he was "unsophisticated about language" and that the linguistic evidence was too weak to be convincing.

4. Stevenson's Position and Conclusions

Stevenson was consistently cautious in his public statements and publications, carefully framing his conclusions.

Rejection of "Proof": He was adamant that the term "proof" should not be used for his evidence and wrote that no single case compelled a belief in reincarnation. He acknowledged that his data was "not flawless" and open to alternative interpretations.
Reincarnation as the "Best Explanation": Despite his caution, he concluded that for the strongest cases—particularly those where the two families had no prior contact and a written record of the child's statements was made before verification—"reincarnation is the best – even though not the only – explanation."
The Third Factor Hypothesis: He proposed that reincarnation might represent a third contributing factor, in addition to genetics and environment, to explain certain aspects of human personality, talents, phobias, and illnesses.
Quote on Evidence: In 1974, he stated his position clearly: "[W]hat I do believe is that, of the cases we now know, reincarnation--at least for some--is the best explanation that we have been able to come up with. There is an impressive body of evidence and it is getting stronger all the time. I think a rational person, if he wants, can believe in reincarnation on the basis of evidence."

5. Scientific Reception and Critical Analysis

The reception of Stevenson's research was sharply divided between a small group of supporters and a larger body of critics, while most in mainstream science simply ignored it.

Support and Positive Reviews

Source	Commentary
Journal of the American Medical Association (JAMA)	Described his Cases of the Reincarnation Type (1975) as a "painstaking and unemotional" collection of data that "cannot be ignored."
Dr. Harold Lief, Psychiatrist	Writing in the Journal of Nervous and Mental Disease, he called Stevenson a methodical investigator and stated, "Either he is making a colossal mistake, or he will be known...as 'the Galileo of the 20th century'."
Dr. Carl Sagan, Astronomer	In The Demon-Haunted World, he referred to Stevenson's work as an example of carefully collected empirical data and wrote that the phenomenon of alleged past-life memories deserved further research, though he rejected reincarnation as the most parsimonious explanation.
Concessions from Critics	Critic Ian Wilson acknowledged that Stevenson brought "a new professionalism to a hitherto crank-prone field." Chief critic Paul Edwards praised his integrity, stating, "I have the highest regard for his honesty. All of his case reports contain items that can be made the basis of criticism. Stevenson could easily have suppressed this information."

Major Lines of Criticism

Critics argued that Stevenson's conclusions were ultimately undermined by methodological weaknesses and the availability of more conventional explanations.

Methodological Flaws: Skeptics like Leonard Angel and Terence Hines argued that the research was poorly conducted. They cited a reliance on anecdotal evidence, inadequate methods to rule out "imaginative storytelling," and a failure to document claims before attempting verification. Champe Ransom, a former assistant, alleged that Stevenson asked leading questions and that in most cases, there had been prior contact between the families involved.
Confirmation Bias and Motivated Reasoning: Critics contended that Stevenson's results were subject to confirmation bias, where cases not supportive of his hypothesis were not counted against it.
Alternative Psychological Explanations: Psychologist Robert Baker attributed the recall of past lives to a mixture of cryptomnesia (forgotten memories) and confabulation (the creation of false memories without intent to deceive).
Cultural Artifacts: Parapsychologist C.T.K. Chari and philosopher Keith Augustine argued that the cases were cultural artifacts, arising primarily in societies where a belief in reincarnation is prevalent. Stevenson countered this by publishing European Cases of the Reincarnation Type (2003) and citing a census by a colleague showing the largest number of his collected cases were from the United States.
Chief Critic Paul Edwards: The editor-in-chief of the Encyclopedia of Philosophy was Stevenson's most vocal critic, calling his views "absurd nonsense" and arguing his cases had "big holes." Edwards charged that Stevenson failed to act like a scientist by not responding to or even citing the work of his opponents.
The Edward Ryall Case: A notable case that weakened under scrutiny involved an Englishman who claimed to remember a life as John Fletcher in 17th-century Somerset. After Stevenson initially supported the case, a critic found no church records of a John Fletcher's existence. Stevenson later conceded that "some of his details are clearly wrong."

6. Legacy and Continuation of Research

Ian Stevenson died of pneumonia in 2007. Though he felt he had failed in his goal of getting mainstream science to seriously consider reincarnation, his work created a lasting institutional and intellectual legacy.

The Division of Perceptual Studies: The research division he founded at the University of Virginia continues its work today under new leadership.
Successor Researchers: His research on children's past-life memories is continued by colleagues he encouraged, most notably Dr. Jim B. Tucker, an associate professor of psychiatry at the University of Virginia and author of Life Before Life: A Scientific Investigation of Children's Memories of Previous Lives.
Post-Mortem Experiment: As a final experiment, Stevenson set a combination lock with a secret phrase and told colleagues he would attempt to communicate the code after his death. The lock has not been opened.
Final Words: Stevenson's final published paper concluded with a sentiment that reflected his career-long approach: "Let no one think that I know the answer. I am still seeking."

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Dr. Ian Stevenson: A Scientific Look at Memories of Past Lives