Abstract
Hypnosis is undoubtedly some kind of phenomenon in the brain. Although various experiments around hypnosis have been tried, no clear explanation about its mechanism has been found, yet. In part, this is because hypnosis experiments with animals are difficult and even with humans, experiments using huge apparatuses, such as fMRI or PET are also difficult. The author has tried to provide clarifications of the hypnosis mechanism using EEG measurements under various situations. The hypnotic state shown in the EEG data is not the sleep state at all, but is almost the same state as the resting condition with the eyes closed. However, some effects reported during hypnosis are sometimes very similar with those during lucid dreams or precognitive dreams. Then, in this presentation, the author will offer some consideration about the hypnotic state as related to the information processing mechanism in the brain and also the neural origin and process of dreams.
