Harwell R C, Ferguson R L
Microsurgery. 1983;4(3):187-92. doi: 10.1002/micr.1920040310.
Physiologic tremor hampers the ability of students to learn microsurgical technique. An understanding of normal tremor both as to origin and methods of control would be of help. Physiological tremor arises from both mechanical and neuromuscular sources and is made worse by a number of factors. The "size principle of motoneuron recruitment" is an important physiologic consideration, and the use of biofeedback techniques enables the student to confirm his understanding of the principle. Knowledge of the factors which aggravate physiological tremor allows the microsurgeon to control his own tremor both in the laboratory and in the operating room.
生理性震颤会妨碍学生学习显微外科技术的能力。了解正常震颤的起源和控制方法会有所帮助。生理性震颤源于机械和神经肌肉两个方面，并且会因多种因素而加重。“运动神经元募集的大小原则”是一个重要的生理学考量因素，而生物反馈技术的应用能让学生确认自己对该原则的理解。了解加重生理性震颤的因素能使显微外科医生在实验室和手术室中控制自己的震颤。
