Habituation of ocular following reflex requires corpus callosum for interhemispheric transfer.
Habituation of ocular following reflex requires corpus callosum for interhemispheric transfer.
复制标题
眼部跟随反射的习惯需要胼胝体进行半球间转移。
DOI：
10.1016/s0166-4328(97)83334-7
复制
发表时间：
1997
影响因子：
2.7
通讯作者：
Doty,RW
中科院分区：
文献类型：
--
作者：
Zernicki,B;Stasiak,M;Doty,RW
在猫的实验中，在不麻醉的情况下，将脑干横切至排除疼痛感觉的水平，并将眼球运动限制在垂直方向（三叉前准备），定向反射的习惯化，包括眼球固定和平滑追求，很容易在首先指向一个大脑半球和然后指向另一个大脑半球的移动视觉刺激之间转移。在相同条件下，当习惯化前2周横切胼胝体时，半球间转移不存在。因此，尽管大量的脑干参与和眼运动的双边协调，新皮层在这种习惯化中起着至关重要的作用，就像它在视觉辨别学习的半球间转移中所起的作用一样。这表明习惯化是哺乳动物前脑学习的一种基本形式。
In cats, unanesthetized following transection of the brainstem at a level precluding painful sensation, and limiting ocular motility to a vertically oriented course (the pretrigeminal preparation), habituation of the orienting reflex, consisting of ocular fixation and smooth pursuit, readily transferred between moving visual stimuli directed first at one and then the other cerebral hemisphere. Under the same conditions, when the corpus callosum had been transected 2 weeks prior to the habituation, interhemispheric transfer was absent. Thus, despite substantial brainstem involvement and bilateral coordination of ocular motility the neocortex plays an essential role in this habituation, just as it does in the interhemispheric transfer of visual discrimination learning. This suggests that habituation is a fundamental form of learning in the mammalian forebrain.