牵张反射振荡与特发性震颤
Stretch reflex oscillations and essential tremor.
作者信息
Elble R J, Higgins C, Moody C J
出版信息
J Neurol Neurosurg Psychiatry. 1987 Jun;50(6):691-8. doi: 10.1136/jnnp.50.6.691.
Abstract
Using a computer-controlled torque motor and manipulandum, 50 ms torque pulses and 70 second trains of binary pseudorandom torque disturbances were applied to the wrists of 10 adult controls and 22 patients with essential tremor in order to study the interaction between mechanically-induced stretch-reflex oscillations and essential tremor. These two oscillations were separated by applying inertial and spring loads to the wrist. There was no evidence of increased or unstable stretch-reflex activity in the essential tremor patients, and stretch-reflex latencies did not correlate with the frequency of essential tremor. Essential tremor and mechanically-induced stretch-reflex oscillations are separate phenomena capable of complex interaction.
摘要
使用计算机控制的扭矩电机和操作器，对10名成年对照者和22名特发性震颤患者的手腕施加50毫秒的扭矩脉冲和70秒的二元伪随机扭矩干扰，以研究机械诱发的牵张反射振荡与特发性震颤之间的相互作用。通过对手腕施加惯性和弹簧负载来分离这两种振荡。在特发性震颤患者中没有证据表明牵张反射活动增加或不稳定，并且牵张反射潜伏期与特发性震颤的频率无关。特发性震颤和机械诱发的牵张反射振荡是能够产生复杂相互作用的独立现象。
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