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Written By: Admin | Updated : October 6, 2012 8:30 AM IST
Departing from the popular belief that hypnosis works on everyone, a new study has found that hypnosis may not be as universal as it was thought to be. The study says that because of differences in brain structures of people not everybody can be hypnotized, says a Stanford research. The study used data from functional and structural magnetic resonance imaging to identify how the areas of the brain tied with executive control and attention tend to have less activity in people who cannot be put into a hypnotic trance, the journal Archives of General Psychiatry reported.
Hypnosis is described as a trance-like state during which a person has a heightened focus and concentration. It has been used clinically to help patients manage pain, control stress and anxiety and combat phobias.
'There's never been a brain signature of being hypnotized, and we're on the verge of identifying one,' said David Spiegel, senior study author and professor of psychiatry and behavioural sciences at Standord University.
Such an advance would enable scientists to understand better the mechanisms underlying hypnosis and how it can be used more widely and effectively in clinical settings, added Spiegel, who also directs the Stanford Centre for Integrative Medicine, according to a university statement.
Spiegel and Stanford colleagues performed functional and structural MRI scans of the brains of adults with high and low hypnotizability.
Spiegel estimates that one-quarter of the patients he sees cannot be hypnotized, though a person's ability to be hypnotized is not linked with any specific personality trait.
"There's got to be something going on in the brain," he said.
Hypnosis works by modulating activity in brain regions linked with focused attention, and this study offers compelling new details regarding neural capacity for hypnosis.
Source: IANS
