Hypnosis can force people to act against their will

What we know

Hypnosis is a genuine altered state of focused attention and heightened suggestibility, recognized and used clinically for purposes including pain management during procedures, smoking cessation support, and anxiety reduction, with efficacy documented in peer-reviewed medical literature, including studies published through the American Society of Clinical Hypnosis and reviewed by bodies such as the American Psychological Association's Division 30. Brain imaging studies, including fMRI research, show measurable changes in brain activity during hypnotic states, particularly in regions associated with attention and self-monitoring, confirming hypnosis is a real neurological phenomenon rather than pure performance or expectation.

The popular depiction of hypnosis as a tool for controlling another person's actions against their will, making them commit crimes, reveal deep secrets involuntarily, or act entirely out of character, is not supported by controlled research. Studies dating back decades, including foundational research by psychologist Martin Orne in the 1960s comparing hypnotized subjects with control groups asked to simply simulate hypnosis, found that hypnotized individuals do not lose their basic capacity for voluntary control or moral judgment; when asked to perform actions that conflicted with their personal values or safety in experimental settings, hypnotized subjects generally resisted or found ways to avoid compliance, similar to unhypnotized control subjects, undermining the idea that hypnosis removes free will or personal agency.

Clinical and research hypnosis practitioners describe the state as one of increased suggestibility and focused attention, not unconsciousness or the suspension of a person's own judgment. A hypnotized person remains aware of their surroundings, generally retains memory of the experience (contrary to dramatic depictions of total amnesia), and can choose not to follow suggestions that conflict with their values, a finding replicated across many decades of laboratory studies using both real hypnosis and simulating control groups to isolate the specific effect of the hypnotic state itself from ordinary social compliance.

Stage hypnosis performances, in which audience volunteers appear to act in unusual or embarrassing ways under a performer's direction, are frequently cited as evidence of mind control, but researchers who study these performances point to selection effects (performers typically choose highly suggestible, extroverted volunteers from the audience who are often already willing to play along for entertainment) and normal social conformity pressures in a public performance setting, rather than a special hypnotic override of will. Forensic and legal contexts have also tested hypnosis's reliability directly: hypnotically enhanced testimony has been shown in research to be vulnerable to false memory creation and increased, unwarranted confidence in inaccurate memories, which is why many courts restrict or exclude hypnotically obtained testimony, a finding about memory distortion, not about mind control of behavior. The scientific consensus is that hypnosis can meaningfully shift attention, perception, and suggestibility within a person's own boundaries, but it does not grant a hypnotist control over another person's actions or free will.

Common claims

• A skilled hypnotist can make anyone do anything.False. Subjects retain moral judgment and regularly refuse objectionable suggestions.
• People have no memory of what happens during hypnosis.Mostly false. Spontaneous amnesia was largely eliminated once subjects are told they will remember.
• Stage hypnosis proves deep mind control.False. Stage effects rely on volunteer selection, social expectation, and compliance, not coercion.

Evidence hierarchy

All sources

• American Psychological Association Division 30, Society of Psychological HypnosisAmerican Psychological Association · 2023
• Research on hypnosis and voluntary control, Martin Orne studiesJournal of Abnormal Psychology · 1962
• HypnosisWikipedia · 2024
• Forensic hypnosis and eyewitness memory reliability researchNational Criminal Justice Reference Service · 2019

Related terms