Kaplan P E, Kaplan C
Arch Phys Med Rehabil. 1980 Jan;61(1):30-3.
The blink reflex may be elicited in the orbicularis oculi following electrical stimulus to the periorbital regions. It consists of a direct early component (R1) and a late component (R2) which is both direct and consensual. The amplitudes of R1 and R2 are reduced and the latencies normal in patients with lesions affecting the parietal lobe of the cerebral hemisphere. The blink reflex may well include tactile contributions from the parietal lobe. The latency of R1 may be prolonged by injuries of the pons and that of R2 by lateral medullary lesions. Blink reflexes may help to distinguish bulbar from pseudobulbar lesions and to estimate the response to therapy in patients with communication disorders.
对眶周区域进行电刺激时，可在眼轮匝肌引出瞬目反射。它由一个直接的早期成分（R1）和一个晚期成分（R2）组成，R2既有直接成分也有双侧性成分。在影响大脑半球顶叶的病变患者中，R1和R2的波幅降低而潜伏期正常。瞬目反射很可能包括来自顶叶的触觉成分。脑桥损伤可使R1潜伏期延长，而延髓外侧病变可使R2潜伏期延长。瞬目反射有助于区分延髓性与假性延髓性病变，并评估有交流障碍患者的治疗反应。
