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© 1985 American Academy of Neurology Patients with pseudoseizuresIntellectual and cognitive performanceDepartments of Neurology (Drs. Sackellares and Vanderzant) and Psychiatry (Drs. Giordani and Berent), University of Michigan Medical Center, and the Veterans Administration Medical Center (Dr. Berent), Ann Arbor, MI; Department of Psychology, North Chicago Medical School (Dr. Seidenberg), North Chicago, IL; Deparlment of Neurology, University of Virginia Medical Center (Dr. Dreifuss), Charlottesville, VA; and Department of Psychiatry, University of Alabama (Dr. Boll), Birmingham, AL. We compared cognitive and intellectual performance of patients with pseudoseizures (pseudoseizure-only group), pseudoseizures and epilepsy (mixed seizure group), and generalized epileptic seizures (generalized seizure group). The pseudoseizure-only group performed significantly better on all measures except those of simple motor function. There were no significant differences between those with mixed and generalized seizures. Therefore, cognitive and intellectual performances of patients with pseudoseizures are influenced by the presence or absence of concomitant epilepsy, and suggest that it is necessary to distinguish patients with and without epilepsy in studies of pseudoseizures. Address correspondence and reprint requests to Dr. Sackellares, Department of Neurology, B4906, CFOB, Box MO56, University of Michigan, Ann Arbor, MI 48109. This investigation was supported by NINCDS contract number no.1-NS-52329 (S. Berent), 1-NS-52327 (T. J. Boll), and 1-NS-52329 (F. E. Dreifuss). This support is gratefully acknowledged. Accepted for publication April 30, 1984.
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