Mind and Research
Reincarnation Research: The Ian Stevenson Case Studies and Their Critics
In many parts of the world, young children sometimes talk about a previous life. They may name a town, describe a family, or speak of how they died. In cultures that already accept reincarnation, such talk is often taken at face value. In the second half of the twentieth century, one academic psychiatrist set out to investigate these claims with the tools of careful case research. His name was Ian Stevenson, and his work remains the most serious attempt to study reincarnation empirically. It also remains highly controversial. This article explains what he did, why some find it persuasive, and why many others do not.
Who Ian Stevenson Was
Ian Stevenson was a Canadian born psychiatrist who chaired the Department of Psychiatry at the University of Virginia School of Medicine. In the 1960s he turned much of his attention to cases of children who claimed to remember past lives. With financial support from Chester Carlson, the inventor of xerography, he founded a research unit at the university that is now known as the Division of Perceptual Studies. He directed it for decades and continued the work until his death in 2007.
His first major book on the subject, Twenty Cases Suggestive of Reincarnation, appeared in 1966. The title itself shows his caution. He did not claim the cases proved reincarnation, only that they suggested it and deserved study. Over his career he and his colleagues collected a large archive of cases, commonly described as numbering in the thousands, from places including India, Sri Lanka, Lebanon, Turkey, Thailand, Myanmar and North America.
What a Typical Case Looked Like
The cases Stevenson studied tended to share a pattern. A child, usually between about two and five years old, begins speaking about a previous life. The statements often fade by around age seven. In some cases the child names people or places specific enough that someone can try to identify a deceased person who matches. Many children in these reports describe the previous person's death, and a notable share describe a violent or sudden one.
Some cases include behavior as well as statements: phobias related to the described death, unusual play, or strong emotions toward the previous family. In his two volume work Reincarnation and Biology, published in 1997, Stevenson also examined birthmarks and birth defects that he said corresponded to wounds on the deceased person, sometimes supported by autopsy or medical records.
His Method
Stevenson's approach resembled that of a careful investigator or historian more than a laboratory scientist. He interviewed the child, family members and other witnesses, often several times and sometimes years apart. He tried to record what the child had said before anyone identified a matching deceased person, since statements written down after contact between families are much harder to evaluate. He then checked those statements against what could be learned about the person identified.
He was open about weaknesses in many of his own cases and classified them by strength. The cases he and his supporters consider strongest are those where the child's statements were written down before the previous person was identified, where the families had no prior connection, and where the statements were specific and later verified.
The Strongest Criticisms
Critics have raised several substantial objections. These are not dismissals but serious methodological concerns.
- Cultural shaping: most cases come from communities that already believe in reincarnation. Families may interpret a child's play or fantasies in light of that belief and, without meaning to, help shape the story as it develops.
- Contamination before investigation: in most cases, the families had already met and compared notes before any researcher arrived. Once that happens, it is very difficult to know which details the child said first and which were added or remembered differently later.
- Reliance on interpreters and memory: many interviews were conducted through translators, sometimes long after the events, relying on the recollections of people with strong feelings about the outcome.
- Cryptomnesia and ordinary information: a child may have overheard details about a deceased person from adults or neighbors, then later recalled them without knowing their source.
- Selection: cases that came to researchers' attention were those that impressed people. Many vague or failed cases may never have been reported.
The philosopher Paul Edwards, in his 1996 book Reincarnation: A Critical Examination, argued that the cases fall short of what would be needed to overcome strong reasons to doubt that personality can survive the death of the brain. Others have questioned whether interviews conducted by researchers sympathetic to the hypothesis could be fully neutral. Some critics have also pointed out that even a striking case can sometimes be explained by a combination of small, ordinary factors that are hard to detect after the fact.
The Defense and the Continuing Work
Supporters respond that critics often address the weakest cases rather than the strongest, and that the strongest cases include written records made before verification. They also note that other researchers, including Erlendur Haraldsson and Antonia Mills, investigated cases independently and reported patterns broadly similar to Stevenson's. The psychiatrist Jim Tucker continues this line of research at the University of Virginia and has written about cases in the United States, where a belief in reincarnation is less common and cultural shaping might be expected to play a smaller role.
Even many critics have acknowledged that Stevenson was a careful and honest investigator by the standards of his method. The disagreement is less about his integrity than about what case studies of this kind can ever establish.
Sorting Fact From Interpretation
It helps to separate three layers. It is an established fact that some young children, in many cultures, make statements about past lives, and that a body of documented cases exists at the University of Virginia. It is debated whether the strongest of those cases contain information the child could not have learned by ordinary means, and whether the documentation is clean enough to rule out contamination. Whether reincarnation actually occurs is a belief, held by a large share of the world's population for religious and philosophical reasons, that this research has not proven and has not disproven.
A Practical Takeaway
If you read about a past life case, ask a few simple questions. Were the child's statements written down before anyone identified the previous person? Did the two families have any earlier contact? How specific were the details, and who verified them? These questions do not tell you what to believe about reincarnation. They tell you how much weight a particular story can bear. For a curious and open minded reader, that is the most useful tool this field offers: a way to take extraordinary reports seriously without taking them on faith.