Objective To explore the value of sympathetic skin response(SSR)in assessing the autonomic nerve dysfunction in patients with Parkinson disease.Methods SSR test was performed in 62 PD patients and 35 healthy people.The results were compared between two groups.Results The abnormality rate of SSR in PD patients was 69%,the latency of SSR was longer and the amplitude of SSR was lower in PD patients than in the control group.There was a significant difference between the two groups(P<0.001).Conclusion PD pat...