Objective To study the long-term effects of deep brain stimulation(DBS)of bilateral subthalamic nuclei(STN)on depressive disorder in Parkinson s disease(PD)and to discuss its neurological mechanism.

• 目的研究丘脑底核(STN)脑深部电刺激(DBS)治疗帕金森病(PD)合并抑郁障碍的长期疗效并探讨其神经机制。