Pattern of extraocular muscle activation during reflex blinking.
Pattern of extraocular muscle activation during reflex blinking.
复制标题
反射性眨眼期间眼外肌的激活模式。
DOI：
10.1007/bf00229039
复制
发表时间：
1993
影响因子：
2
通讯作者：
Manning,KA
中科院分区：
文献类型：
--
作者：
Evinger,C;Manning,KA
对人类和兔子的研究表明，眼外肌的共同收缩伴随着反射和随意眨眼。我们通过肌电图记录警觉兔眼外肌的拮抗对，确定了眨眼诱发视觉和三叉神经刺激引起的眼外肌活动模式。此外，我们记录了活动的逆向识别眼运动神经元在相同的刺激在警觉的兔子。数据表明，所有眼外肌除了上级斜肌短暂增加其活动，以响应眨眼唤起刺激。眼外肌的活动模式与眼睑闭合肌眼轮匝肌相似，但眼外肌的激活潜伏期较长。
Studies in humans and rabbits suggest that cocontraction of extraocular muscles occurs with reflex and voluntary blinks. We determined the pattern of extraocular muscle activity elicited by blink-evoking visual and trigeminal stimuli by electromyographically recording antagonistic pairs of extraocular muscles in alert rabbits. In addition, we recorded the activity of antidromically identified oculomotor motoneurons in response to the same stimuli in alert rabbits. The data demonstrate that all extraocular muscles except the superior oblique transiently increase their activity in response to blink-evoking stimuli. The pattern of extraocular muscle activity with reflex blinks mirrors that occurring in the lid-closing muscle, orbicularis oculi, but the latency of extraocular muscle activation is longer.