Factors Affecting the Outcome of MMPI and Neuropsychological Assessments of Psychogenic and Epileptic Seizure Patients

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Abstract
The literature reveals conflicting information regarding the extent to which psychogenic seizure patients have emotional disorders and neuropsychological deficits as compared with patients with epileptic seizures. Among groups matched for numbers of subjects, age, sex, and years of education, we observed that patients who had solely psychogenic seizures with either a major component of affectual expression or relatively minor motor activity were more disturbed emotionally than epileptic patients with partial seizures. In contrast, the personality characteristics of psychogenic seizure patients whose attacks had either little affectual display or prominent motor expression could not be distinguished from those of epileptic patients with convulsive generalized seizures. Closely matched groups of patients with solely psychogenic seizures, partial seizures, or generalized seizures did not differ in neuropsychological performance. However, psychogenic seizure patients performed much better on neuropsychological measures than a less-well-educated, but otherwise matched group of patients with generalized epileptic seizures.