continuous performance test for assessing cognition among patients with parkinson diseases

background: many patients with parkinson diseases are faced with constant attention disorders and evaluation of these disorders in these patients is important. methods : a cross-sectional study was conducted on 80 patients with parkinson disease and 80 healthy iranian people aged 40 to 70. all participants in the two groups of healthy and patients were examined by neurologists and psychiatrists. after completing the questionnaire, they were evaluated through computerized cognitive continuous performance test. results: there was significance difference between the two groups in age, sex and education status and in some variables of the test (p<0.05). patients compared with healthy controls and showed a significant difference in test variables (p<0.05). conclusion: patients with parkinson disease compared to healthy subjects face cognitive changes in sustained attention, and identification and evaluation of cognitive changes before and after treatment will be a considerable help in the rehabilitation of brain and a better quality of life for these patients.