Hartung M L, Lehrl S
Z Psychosom Med Psychoanal. 1976 Jan-Mar;22(1):110-4.
Female patients suffering from perioral dermatitis were given the Raven Test, two personality inventories (MMPI and FPI) and the Rorschach Test. The results of these four tests show statistically significant differences from controls, indicating emotional immaturity combined with high intelligence level, inability to achieve satisfactory interpersonal relationships contrasting with an overemphasis upon social conformity, and a tendency to 'hysteriform' reactions.