Mood Changes in Relation to Personality and the Excretion of 3-Methoxy-4-Hydroxy-Mandelic Acid

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Abstract
Nine young men were studied over the course of a year as they went about their normal daily tasks on an Antarctic base. Records of mood changes were related to personality and the urinary excretion of V.M.A. (a catecholamine metabolite). Subjects with an obsessoid personality tended to experience more unpleasant moods than hysteroid subjects, and to show a greater physiological response to these moods.