目的:为适应痛觉诱发电位研究的实际需求,研究出一种能同时产生短暂致痛和持续致痛的激光痛觉刺激方法。方法:使用比例积分微分(proportional integralderivative,PID)智能温度控制器、红外测温仪和1940 nm连续输出激光器构成温度反馈回路,从而在皮肤上产生一个表面温升可控的被照射区域并以此产生持续致痛。使用980nm脉冲激光以产生短暂 OBJECTIVE: To adapt to the actual needs of pain-evoked potentials, a laser pain-stimulating method with simultaneous pain-causing and pain-causing pains was developed. Methods: A temperature feedback loop was constructed using a proportional integral derivative (PID) smart temperature controller, an infrared thermometer, and a 1940 nm continuous output laser to create a controlled area of ​​the skin on the skin and use this Produce persistent pain. A 980 nm pulsed laser is used to create a transient