Gruart A, Blázquez P, Delgado-García J M
Departamento de Fisiología y Biología Animal, Universidad de Sevilla, Spain.
Neurosci Lett. 1994 Jul 4;175(1-2):81-4. doi: 10.1016/0304-3940(94)91083-9.
Upper eyelid movements were conditioned in the alert cat to the presentation of either tones or short, weak air puffs applied to the ipsi- or contralateral cornea followed by an unconditioned stimulus consisting of a long, strong air puff applied to the ipsilateral cornea. Eyelid movements were measured with the search-coil technique. Electromyographs of the orbicularis oculi muscle were also recorded. Quantitative analysis of the latencies and topographic profiles of eyelid conditioned responses suggests that the primary site for their initiation is the brain stem reflex circuit involved, depending on the sensory modality of and on the side where the conditioning stimulus was applied. However, the kinematic of the conditioned response indicates that other neural structures are involved in its acquisition and consolidation.
在警觉的猫中,对上睑运动进行条件反射训练,使其对同侧或对侧角膜施加的音调或短暂、微弱的吹气作出反应,随后对同侧角膜施加由长时间、强烈吹气组成的非条件刺激。使用搜索线圈技术测量眼睑运动。还记录了眼轮匝肌的肌电图。对眼睑条件反应的潜伏期和地形图进行定量分析表明,其起始的主要部位是所涉及的脑干反射回路,这取决于条件刺激的感觉模式和施加的一侧。然而,条件反应的运动学表明,其他神经结构也参与了其获得和巩固过程。