Which of the following have research studies found about hypnosis?

A) Brain imaging studies do not support it is a state of altered consciousness.
B) Comparison studies find it is less effective than non-hypnotic suggestions.
C) Brain imaging studies support that it is altering consciousness apart from effect.
D) Comparison studies find it is more effective than nonhypnotic suggestion.

Research studies have found that brain imaging supports the idea that hypnosis alters consciousness. Studies have shown changes in brain activity and connectivity during hypnosis, suggesting that it is a unique state of consciousness. Option A is incorrect because brain imaging studies support the idea that hypnosis is a state of altered consciousness. Option B is incorrect because comparison studies have found that hypnosis can be more effective than non-hypnotic suggestions for certain conditions, such as pain management.