Abstract
This paper presents a critical evaluation of reported attempts to produce nonherpetic skin blisters through hypnotic suggestion. Even though the majority of these reports are grossly lacking in controls, experimental design, etc., and are subject to alternative explanations, the author concludes that skin anomalies have been produced by suggestion in some instances. Additional studies of psychogenic vascular changes add credence to the possibility of central control of these phenomena. It is also concluded that these reactions do not appear to be limited only to hypnotized Ss.

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