Conversational Hypnosis: What It Is and Whether It Can Be Misused

“Conversational hypnosis” refers to hypnotic language used inside an ordinary conversation, without the formal induction, the closed eyes or the reclining chair. The idea traces back to Milton Erickson, who claimed he could suggest changes in behavior during apparently ordinary conversations. Whether that makes it a hidden form of control is a separate question, and on that question the available evidence points the other way.

Where does the idea come from?

From two older threads in hypnosis.

The first is that suggestion does not require a trance. According to the Wikipedia article on hypnosis, James Braid, who popularized the word hypnotism in the 1840s, placed increasing emphasis in his later work on many verbal and non-verbal forms of suggestion, including “waking suggestion.”

The second is Erickson’s approach. The Wikipedia article on hypnotherapy describes how, from the 1950s, he developed what became known as Ericksonian hypnotherapy:

• Utilization. He worked with the client’s own behavior to build rapport instead of imposing a standard routine.
• An informal conversational approach. Once rapport was established, he used conversation to direct the client’s awareness.
• Complex language patterns and client-specific strategies. The hypnosis article adds that hypnotists in Erickson’s tradition use indirect suggestions, such as metaphors or stories whose intended meaning may be concealed from the listener’s conscious mind.

Is it really hypnosis?

That has been disputed. The hypnotherapy article notes that André Weitzenhoffer questioned whether Erickson was right to call his approach “hypnosis” at all, and Weitzenhoffer was no outsider: the hypnosis article credits him as co-developer of the Stanford hypnotic susceptibility scale. Erickson’s own foundational paper, the hypnotherapy article adds, treats hypnosis as a mental state in which particular kinds of therapeutic “work” can be done, rather than as a technique of induction.

The same article records a later branch. The founders of neuro-linguistic programming (NLP) claimed to have modeled Erickson’s work extensively, and Weitzenhoffer disputed whether NLP bears any real resemblance to it. On NLP’s results, a 2012 systematic review in the British Journal of General Practice found little evidence that NLP interventions improve health-related outcomes, a conclusion it attributes to the limited quantity and quality of NLP research rather than robust evidence of no effect.

So “conversational hypnosis” is best understood as a style of influential, suggestion-rich communication that grew out of therapy, with an argument still running about whether it deserves the word hypnosis.

Can it be misused?

Like any persuasion technique, it can be aimed at someone’s interests or against them. Nothing about rapport-building or indirect suggestion restricts it to a therapy room.

What it cannot be shown to do is the dramatic version: covertly putting a stranger into a state where they lose their judgment. The claim behind the idea comes from Erickson himself, about therapy with clients who had come to him for help. On the hostile version of the question, a 1966 document on intelligence uses of hypnosis, declassified in 2006 and quoted in the hypnosis article, found no good clinical or experimental evidence that a resistant person can be hypnotized under hostile circumstances.

That leaves the realistic risk where it is: someone using rapport, flattery, time pressure and well-placed suggestions to push you toward a decision. That is ordinary manipulation, whatever name is on the course that taught it.

How to judge a claim about it

Use one rule for anything sold as conversational, covert or “secret” hypnosis: a promise of control over other people goes beyond anything the research above supports. Erickson’s own claim was about therapy with willing clients. If a course or book promises to make others comply without their knowledge, treat that promise as marketing, and treat any person who uses rapport and pressure to rush your decisions the way you would treat any other pushy salesperson: slow down, take the decision away and make it later.

This article is general information, not medical or psychological advice; talk with a licensed clinician about your own situation.