A retrospective study of 14 patients with epileptic seizures and 11 with
nonepileptic seizures, all taking antiepileptic drugs, found epileptic
patients had significantly longer P160, N200, and P300 latencies on
auditory event-related potential recordings. Patients with nonepileptic
seizures had generally higher IQs and significantly greater psychopathology
on neuropsychological scales.
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