“…2 Now with the Department of Psychiatry, University of Washington, Seattle, Washington, studies have indicated that barrier perceptions may be correlated with the relative physiological reactivity of the exterior as opposed to the interior of the body. Malev (1961), studying galvanic skin response (GSR), heart rate, and blood pressure in normal children, found the reaction of the heart to be negatively correlated with barrier scores in 6-year-old 5s. GSR, however, showed only a chance relationship with this index.…”