Hypnosis is not simply a placebo effect, though placebo mechanisms can play a role in how it works.
Key points:
Hypnosis is a state of focused attention, increased suggestibility, and reduced peripheral awareness. It involves specific psychological and neurological changes.
Scientific studies show that hypnosis can produce measurable changes in brain activity and affect perception, sensation, and behavior.
Hypnosis has been used effectively for pain management, anxiety reduction, habit control, and some other conditions, with effects that go beyond what a placebo alone would explain.
However, expectations and beliefs (which are central to placebo effects) do influence how well hypnosis works. If a person expects hypnosis to help, this can enhance the outcome.
Placebo effects and hypnosis can interact: the suggestibility in hypnosis can amplify placebo responses.
Summary:
Hypnosis is more than just a placebo effect because it involves real changes in brain function and behavior. But like many treatments, part of its effectiveness depends on the individual's expectations, which is related to placebo mechanisms.