Related Experiment Video
Updated: Aug 19, 2026

Induction and Monitoring of Active Delayed Type Hypersensitivity (DTH) in Rats
Published on: July 19, 2007
Failure of hypnotic suggestion to alter immune response to delayed-type hypersensitivity antigens
Abstract:
The ability to alter delayed-type hypersensitivity via hypnotic suggestion was tested in 12 highly hypnotizable, untrained subjects and 30 nonhypnotized controls. Subjects were skin-tested bilaterally with a standardized panel of delayed hypersensitivity antigens and instructed either to enhance or suppress the skin test response unilaterally. Compared with results in controls, the skin test response reflected no effect of hypnotic suggestion with regard to either the area of induration or the degree of inflammation assessed histologically.
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