Hypnotic regression can bring back accurate, hidden memories of past events, including abductions, childhood events and past lives.
Explained
Hypnosis raises confidence, not accuracy.
Hypnosis can help some people recall more details, but it also adds errors and makes people sure of both. Experiments show that false memories can be suggested under hypnosis and then remembered as real. Courts in several places limit hypnotically refreshed testimony for this reason.
Last reviewed: 15 November 20268 sourcesVersion 1.0
Short answer
Hypnosis is a real state in which some people respond strongly to suggestion. Under hypnosis they often report more detail than before. In 1985 the American Medical Association reviewed the research and found that this extra material contains more errors, while people become more confident in all of it [1]. Experiments have shown that false memories suggested under hypnosis can be remembered the next day as real events [3]. Past-life stories follow the expectations given to the person [4]. Because true and false memories look the same to the witness and to the hypnotist, hypnosis cannot be used to check what happened [2].
What supporters can show
Verified
Some people respond strongly to hypnosis
Source
Researchers can identify people who respond strongly to hypnotic suggestion. These people report vivid, lifelike experiences under hypnosis [3].
Shows
Hypnosis is a real phenomenon, and hypnotic memories feel real to the people who have them.
Does not show
That the memories are accurate.
Verified
Some people recall more under hypnosis
Source
Memory researchers have shown that repeated attempts to remember bring out more details over time, and hypnosis can also increase the amount a person reports [5][1].
Shows
A person may bring out details that ordinary questioning missed.
Does not show
That the added details are correct. The AMA review found that the extra material contains more errors, and that the person becomes more confident in all of it [1].
Partly verified
Hypnosis has helped in some investigations
Source
In some well-known cases a witness remembered a number or a detail under hypnosis that was later confirmed [2].
Shows
Hypnosis can sometimes help a witness recall real details.
Does not show
That anyone can tell which details are real. Without outside checking, true and false memories look the same to the witness and to the examiner [2].
Partly verified
Past-life stories are detailed
Source
People under hypnotic regression can describe past lives with names, places and daily detail [4].
Shows
Hypnosis can produce rich and coherent stories.
Does not show
That past lives exist. In experiments the content depended on what people had been led to expect, and the historical details were often wrong [4].
Could not verify
Claims that supporters often repeat and that we looked for but could not confirm in a reliable source.
“A person cannot lie under hypnosis.” Some hypnotists say hypnosis forces the truth. We found no research supporting this, and experiments show that people can invent and lie under hypnosis [2].
Memories “locked away” for decades. The idea that a memory is stored perfectly and unlocked by hypnosis is popular. Memory research shows that memories are rebuilt each time they are recalled, and can be changed by suggestion [3].
What science found
Hypnosis raises confidence, not accuracy
In 1985 the American Medical Association concluded that memories “refreshed” by hypnosis are less reliable than ordinary memory. People recall more, but a larger share of it is wrong, and they feel more sure about all of it [1]. The psychiatrist Martin Orne, a leading hypnosis researcher, reached the same view and warned that hypnotised witnesses can mix real memory with imagination without knowing it [2].
False memories can be planted under hypnosis
In a 1983 experiment, 27 highly hypnotizable people were told under hypnosis that loud noises had woken them on a night in the previous week. Many reported this as a real memory the next day, outside hypnosis, and some refused to believe the experimenters when told it had been suggested [3].
Past lives follow the instructions
In experiments by Nicholas Spanos and colleagues, what people said about their “past lives” depended on what they had been led to expect. Their historical details were often wrong [4].
Courts limit hypnotically refreshed testimony
Because of these problems, some US courts restrict testimony that was refreshed by hypnosis. The California Supreme Court excluded it in 1982 [7]. In 1987 the US Supreme Court ruled in Rock v. Arkansas that a state cannot ban a defendant's own hypnotically refreshed testimony in every case, while accepting that such testimony can be unreliable and needs safeguards [6].
Memory is rebuilt, and can be changed
Memory is not a recording. Each time we recall something we rebuild it from pieces, expectations and suggestions. In a well-known study, about a quarter of the adults who were told by a relative that they had been lost in a shopping mall as a child came to “remember” the event, though it never happened [8].
What is still open
Researchers still study when hypnosis helps recall and when it harms. The question is not whether hypnosis is real, but how its output can be checked against independent records [5].
If a therapist or hypnotist offers to “recover” memories
If someone suggests that hypnosis can recover hidden memories of abuse, abduction or a past life, you can ask which research supports it. A licensed mental health professional can help with distress from any memory, without needing to prove that the memory is accurate [1].
Sources
Council on Scientific Affairs, American Medical Association (1985). Scientific status of refreshing recollection by the use of hypnosis. JAMA, 253(13), 1918–1923.
Orne, M. T. (1979). The use and misuse of hypnosis in court. International Journal of Clinical and Experimental Hypnosis, 27(4), 311–341.
Laurence, J.-R., & Perry, C. (1983). Hypnotically created memory among highly hypnotizable subjects. Science, 222(4623), 523–524. Source
Spanos, N. P., Menary, E., Gabora, N. J., DuBreuil, S. C., & Dewhirst, B. (1991). Secondary identity enactments during hypnotic past-life regression: A sociocognitive perspective. Journal of Personality and Social Psychology, 61(2), 308–320.
Erdelyi, M. H. (1996). The Recovery of Unconscious Memories: Hypermnesia and Reminiscence. University of Chicago Press.
Rock v. Arkansas, 483 U.S. 44 (1987). Supreme Court of the United States.
People v. Shirley, 31 Cal.3d 18 (1982). Supreme Court of California.
Loftus, E. F., & Pickrell, J. E. (1995). The formation of false memories. Psychiatric Annals, 25(12), 720–725.
Change log
15 November 2026: First publication. Verdict: Explained.