Rorschach records have been made of 50 individuals with migraine headaches, 10 individuals with undoubtedly psychogenic headaches, 15 individuals with headaches of unknown origin, 50 symptom-free individuals of superior intelligence, 50 miscellaneous psychoneurotic patients and 24 patients with brain tumor or injury. These records have been analyzed for objectively defined signs. The signs which are significantly associated with migraine, with psychoneurosis, and with brain disease have been determined. The migraine group tends to show delay on the same cards on which the psychoneurotic group fails, especially on Card VI. The migraine group also has a high percentage of records in which over 75% are whole responses, in which the cards are all held upright as presented to the subject, or in which only one response is given per card. The latter three features are shared by the group with brain disease. When an interpretation is added to the objective statistical study, the items associated with migraine can be seen as representing persistence toward success, difficulty in sexual adjustment, perfectionism, inflexibility, conventionality and intolerance. Some of these are obsessive-compulsive features, and all have been found in migraine by clinical personality study. “Instability” and “disability” ratings were not significantly abnormal in the migraine group. This would indicate that when all the quantitative Rorschach signs most characteristic of psychoneurosis or of brain disease are taken into consideration, the migraine subjects are not essentially more “neurotic” or more closely allied to subjects with brain disease than an unselected group, even though they have shown some features in common with psychoneurotics and others in common with individuals suffering from brain disease.