Hypnosis Hypnosis is often thought to be a gimmick, not a real state of mind. But a new study uses P-E-T scans to test the theory that hypnosis actually has a biological basis. NPR's Michelle Trudeau reports.

Hypnosis

Hypnosis

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Hypnosis is often thought to be a gimmick, not a real state of mind. But a new study uses P-E-T scans to test the theory that hypnosis actually has a biological basis. NPR's Michelle Trudeau reports.