The practice of inducing trance states is ancient, but hypnosis as a recognizable discipline emerged only in the 18th century. Its journey from occult spectacle to evidence-based therapy required centuries of scientific refinement, bitter professional rivalries, and periodic rehabilitation from the damage caused by charlatans and entertainers.
Franz Anton Mesmer and Animal Magnetism
The modern history of hypnosis begins with Franz Anton Mesmer, a Viennese physician practicing in Paris during the 1770s. Mesmer believed he had discovered an invisible fluid he called “animal magnetism” that permeated all living things. Disease, in his view, resulted from blockages in the flow of this magnetic fluid.
Mesmer’s treatment sessions were theatrical. Patients gathered around a wooden tub filled with iron filings and bottles of “magnetized” water. Iron rods protruded from the tub, which patients pressed against their afflicted body parts. Mesmer himself appeared in flowing robes, passing his hands over patients to redirect their magnetic flows. Many patients experienced convulsions, fainting, or dramatic emotional releases. Some reported miraculous cures.
The French Academy of Sciences investigated Mesmer in 1784. Benjamin Franklin participated in the commission. They concluded that the effects were real but had nothing to do with magnetism. Patients responded to expectation and imagination, not invisible fluids. Mesmer was discredited, but his observations about the power of suggestion survived.
James Braid: Coining “Neuro-Hypnotism”
The transformation from magnetism to psychology began with James Braid, a Scottish surgeon practicing in Manchester during the 1840s. Braid attended a public demonstration by a traveling mesmerist and initially assumed he would witness fraud. Instead, he observed phenomena he could not explain through trickery.
Braid repeated the experiments privately. He discovered that he could produce the mesmeric state by having subjects fixate on a bright object held slightly above eye level. No magnetic passes required. No special fluid. Just focused attention producing a distinctive physiological state.
Braid named this state “neuro-hypnotism” (from the Greek hypnos, meaning sleep), later shortened to “hypnotism.” He explicitly rejected magnetic theory and argued that the phenomena resulted from concentrated attention affecting the nervous system. This terminology and conceptual framework persist today.
The Nancy vs. Salpêtrière School Rivalry
The late 19th century saw a fierce academic battle over the nature of hypnosis, fought between two French schools.
At the Salpêtrière Hospital in Paris, the neurologist Jean-Martin Charcot dominated. Charcot believed hypnosis was a pathological state found only in hysterics. He categorized hypnotic phenomena into three stages (lethargy, catalepsy, somnambulism) and viewed hypnotizability as a symptom of neurological dysfunction. Only diseased minds could be hypnotized.
At the Nancy School, physicians Hippolyte Bernheim and Ambroise-Auguste Liébeault took the opposite position. They argued that hypnosis was a normal psychological phenomenon based on suggestion, available to healthy individuals. Anyone with sufficient concentration and willingness could enter trance.
The Nancy School eventually prevailed. Research demonstrated that normal subjects showed the same hypnotic responses as Charcot’s hysterics. The Salpêtrière findings were likely artifacts of expectation created by Charcot’s theatrical demonstrations and the institutionalized patient population he studied.
Freud’s Abandonment and the Decline
Sigmund Freud trained briefly with Charcot and initially used hypnosis in his practice. His early work with Josef Breuer on hysteria relied heavily on hypnotic techniques to access repressed memories. But Freud abandoned hypnosis by the mid-1890s.
Several factors drove this decision. Not all patients could be hypnotized to the depth Freud required. Some patients recovered memories under hypnosis but later proved those memories false. The therapeutic results were sometimes temporary. Most significantly, Freud found the transference relationship in hypnosis difficult to manage. Patients sometimes developed erotic attachments that complicated treatment.
Freud replaced hypnosis with free association and built psychoanalysis on techniques that bypassed trance entirely. His enormous influence caused hypnosis to fall out of favor in mainstream psychotherapy for decades. What had been a respectable medical tool became associated with stage entertainment and the fringes of practice.
Milton Erickson: The Modern Renaissance
The rehabilitation of clinical hypnosis is largely credited to Milton H. Erickson, an American psychiatrist who practiced from the 1930s until his death in 1980. Erickson transformed hypnosis from an authoritarian ritual into a flexible therapeutic tool.
Where earlier hypnotists issued direct commands (“Your eyes are getting heavy”), Erickson developed indirect techniques. He told stories with embedded suggestions. He utilized the client’s resistance rather than fighting it. He reframed problems as resources. If a patient was argumentative, Erickson might incorporate that opposition into the induction rather than demanding compliance.
Erickson’s approach is called utilization. Whatever the client brings to the session, including symptoms, objections, and personality quirks, becomes material for therapeutic work. This radically expanded who could benefit from hypnosis. Clients who resisted traditional authoritarian inductions often responded beautifully to Ericksonian permissive methods.
Erickson also emphasized the resourcefulness of the unconscious mind. Earlier models, particularly Freud’s, depicted the unconscious as a repository of dangerous repressed material. Erickson saw it as a storehouse of solutions, creativity, and healing capacity. The therapist’s job was not to impose change but to facilitate access to resources the client already possessed.
Evidence-Based Era: APA Division 30
The American Psychological Association formally recognized hypnosis through Division 30 (Society of Psychological Hypnosis), established in 1972. This professionalized the field and connected it to academic research standards.
The current APA definition describes hypnosis as “a state of consciousness involving focused attention and reduced peripheral awareness characterized by an enhanced capacity for response to suggestion.” This deliberately neutral language avoids metaphysical claims while acknowledging the phenomenon’s reality.
Today, hypnosis is integrated into cognitive behavioral therapy, pain management protocols, and medical preparation procedures. Meta-analyses confirm its efficacy for specific conditions. Training programs adhere to ethical standards. The trajectory from Mesmer’s theatrical magnetic tubs to evidence-based clinical protocols spans over two centuries of gradual scientific refinement.
| Era | Key Figure | Core Belief | Legacy |
|---|---|---|---|
| 1770s | Franz Mesmer | Animal magnetism, invisible fluid | Demonstrated power of suggestion |
| 1840s | James Braid | Neurological focus phenomenon | Scientific terminology, psychology-based |
| 1880s | Bernheim (Nancy) | Normal suggestibility | Hypnosis available to healthy minds |
| 1880s | Charcot (Salpêtrière) | Pathological hysteria | Discredited but influential |
| 1890s | Sigmund Freud | Abandoned for free association | Decades of professional neglect |
| 1940s-1980 | Milton Erickson | Utilization, indirect methods | Modern clinical hypnotherapy |
| 1972-Present | APA Division 30 | Evidence-based practice | Integration with mainstream psychology |
The history of hypnosis is a story of repeated rediscovery. Each generation of practitioners has had to separate genuine therapeutic effects from the cultural baggage of previous eras. The current scientific consensus treats hypnosis as neither miracle nor fraud but as a well-documented psychological phenomenon with specific applications and limitations.
Looking Forward: Integration and Evidence
Contemporary hypnosis continues to evolve. Current trends include:
Integration with established therapies: Rather than standing alone, hypnosis increasingly serves as an enhancer for cognitive behavioral therapy, acceptance and commitment therapy, and other evidence-based approaches. The combination often produces faster or more durable results than either modality alone.
Neuroscience-informed practice: Brain imaging research allows practitioners to understand what they are actually doing when they induce trance. This moves hypnosis from art toward science, though the art remains essential.
Medical applications: Pain management, surgical preparation, and chronic illness support represent growing areas of hypnosis application with strong evidentiary support.
Online delivery: The pandemic accelerated adoption of virtual hypnotherapy, with research suggesting equivalent efficacy to in-person work for many applications.
The trajectory from Mesmer’s theatrical demonstrations to evidence-based clinical protocols took over two centuries. The next chapter is being written by practitioners who honor the field’s complex history while contributing to its scientific future.
Disclaimer
This article is provided for educational and informational purposes only and does not constitute medical, psychological, or therapeutic advice. The techniques, protocols, and information described herein are intended for trained professionals and should not be attempted by untrained individuals.
Important Notices:
- Professional Training Required: Hypnotherapy techniques should only be practiced by individuals who have received proper training and certification from recognized institutions. Improper application of these techniques can cause psychological harm.
- Not a Substitute for Medical Care: Hypnotherapy is a complementary approach and should never replace conventional medical or psychological treatment. Always consult qualified healthcare providers for diagnosis and treatment of medical or mental health conditions.
- Individual Results Vary: The effectiveness of hypnotherapy varies significantly between individuals. Results described in this article represent possibilities, not guarantees.
- Contraindications: Hypnotherapy may not be appropriate for individuals with certain psychiatric conditions, including but not limited to psychosis, severe personality disorders, or dissociative disorders. A thorough screening by a qualified professional is essential before beginning any hypnotherapy intervention.
- Scope of Practice: Practitioners must operate within their scope of practice as defined by their training, certification, and local regulations. When client needs exceed this scope, appropriate referral is mandatory.
- Informed Consent: All hypnotherapy interventions require informed consent. Clients must understand what hypnosis involves, potential risks and benefits, and their right to terminate the session at any time.
- No Liability: The author and publisher assume no liability for any outcomes resulting from the application of information contained in this article. Readers assume full responsibility for their use of this material.
If you are experiencing a mental health crisis, please contact emergency services or a crisis helpline immediately.