The use of hypnosis and biofeedback procedures for essential hypertension

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Abstract
In an attempt to evaluate a procedure combining 2 techniques, hypnosis and biofeedback, which might effect significant changes in diastolic blood pressure in essential hypertensives, Ss were placed in 1 of 4 groups: hypnosis only, biofeedback only, hypnosis and biofeedback combined, or measurement only. The first phase-training sessions and brief follow-ups (1 week and 1 month)-of the long-term study with 6 monthly follow-up periods, was evaluated. Hypnosis only and biofeedback only procedures were both capable of providing significant lowering of diastolic pressure. However, in intergroup comparisons, the hypnosis only procedure showed the most impressive effect. Unexpectedly, the procedure of combining hypnosis and biofeedback into one technique was as ineffective as the measurement only procedure.