Our aim in this study was to compare the assessments of neuropsychological tests and the p50 neurophysiological test of patients with seizure diagnosed as conversion disorder and healthy control subjects, and to investigate the neurological status in conversion disorder with pseudoseizure.A total of 22 female conversion disorder patients with convulsions diagnosed according to SCID-I/CV and 22 healthy women were included in the assessment. The participants were administered WMS-R, the cancellation test, and the Stroop test as neuropsychological tests and p50 was assessed as a neurophysiological test.The patient's results for the neuropsychological tests were found to be significantly low compared to the control group. The p50 sensory gating ratios of the patient group were statistically significantly lower than the controls. There was no significant correlation between the neuropsychological test scores and gating ratios of the patient and control groups.This study is the first to check sensory gating in conversion disorder patients with pseudoseizure and its most important result is finding reduced p50 sensory gating in patients. Our results suggest that these patients have a neurological tendency to this disease due to functional neurophysiological features.