Esteban A, Salinero E
Eur Neurol. 1979;18(3):157-65. doi: 10.1159/000115072.
Levator palpebrae (m. lev. palp.) and rectus superior (m. rect. sup.) are two synergistic muscles in vertical gaze movements. However, they show an antagonistic behavior during electrically induced blink and glabellar reflexes. This can be considered as an easy and useful method for their differentiation in the electrophysiological study of certain oculopalpebral motor disorders. Blinking consists of a series of reflex activities, the most outstanding ones being an early m. lev. palp. basal activity inhibition, followed by the activation of the orbicularis oculi muscle and a brief increase in m. rect. sup. activity (reflex Bell phenomenon). This coordinated reflex organization could be perfectly related to that known in other human nociceptive reflexes.
提上睑肌（m. lev. palp.）和上直肌（m. rect. sup.）是垂直注视运动中的两块协同肌。然而，在电诱发眨眼和眉间反射期间，它们表现出拮抗行为。在某些眼睑运动障碍的电生理研究中，这可被视为区分它们的一种简便且有用的方法。眨眼由一系列反射活动组成，其中最显著的是早期提上睑肌基础活动抑制，随后眼轮匝肌激活，上直肌活动短暂增加（反射性贝尔现象）。这种协调的反射组织可能与其他人类伤害性反射中已知的情况完美相关。
