In a lengthy and thoughtful experiment the authors tested the hypothesis implicit in explaining psychosomatic symptoms—that undischarged emotion leads to increased physiologic responses. Various physiologic recordings were made of normal subjects who were given a psychological work-up and confronted with ambiguous, nonsupportive, and stressful situations in the laboratory. Only the immediate magnitude of response was tested. At least in this regard, the hypothesis was not borne out under the conditions of the experiment. However, there was an increase in vascular tone when affect was suppressed, suggesting some relationship of suppressed affect discharge to high blood pressure.