11 October 2012

Why some people can't be hypnotised

The brains of people who can't be hypnotised differ from those who are easily put into a trance, a new study finds.


The brains of people who can't be hypnotised differ from those who are easily put into a trance, a new study finds.

Researchers used MRI scans to examine activity of three different brain networks in 12 adults who were easily hypnotised and 12 others who weren't.

The brain networks were: the default-mode network, used when the brain is idle; the executive-control network, used in making decisions; and the salience network, used when deciding if something is more important than something else.

The brain scans showed that both groups had an active default-mode network, but the highly hypnotizable people had greater co-activation between parts of the executive-control network and the salience network, the Stanford University School of Medicine researchers found.

The study was published in the journal Archives of General Psychiatry.

How hypnosis works

Hypnosis, which has been shown to help with brain control over sensation and behaviour, can be used to help treat pain, phobias, stress and anxiety, the study authors noted.

"There's never been a brain signature of being hypnotised, and we're on the verge of identifying one," study senior author Dr. David Spiegel, a professor of psychiatry and behavioural sciences, said.

Such a finding would shed light on how hypnosis works, and how it can most effectively be used to treat patients, Spiegel explained.

He said about 25% of the patients he sees cannot be hypnotised. "There's got to be something going on in the brain," Spiegel concluded.

Read more:
All about hypnotherapy

More information

The American Cancer Society has more about hypnosis.

(Copyright © 2012 HealthDay. All rights reserved.)




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