Sirkin D W, Hess B J, Precht W
Exp Brain Res. 1985;61(1):218-21. doi: 10.1007/BF00235639.
Ocular responses to optokinetic stimulation were reexamined in adult albino rats of two different strains. Eye movements were measured in head-restrained animals using the search coil method. In contrast to some previous results, the albino rats showed optokinetic nystagmus, and some of them made responses comparable to those previously recorded from pigmented rats. However, the type of stimulus pattern used to elicit optokinetic nystagmus proved to be crucial for albino rats. The deficit is attributed to abnormalities in the albino rat's visual sensory apparatus. Inverted optokinetic nystagmus was elicited in albino rats by restricting the optokinetic stimulation to the anterior visual field of both eyes. The same phenomenon has been observed previously in albino rabbits and mice, and has been suggested to be due to the abnormally small number of uncrossed optic nerve fibers in albinos.
在两种不同品系的成年白化大鼠中重新检查了对视动刺激的眼部反应。使用搜索线圈法在头部固定的动物中测量眼球运动。与之前的一些结果相反，白化大鼠表现出视动性眼球震颤，其中一些大鼠的反应与之前在有色大鼠中记录的反应相当。然而，事实证明，用于引发视动性眼球震颤的刺激模式类型对白化大鼠至关重要。这种缺陷归因于白化大鼠视觉感觉器官的异常。通过将视动刺激限制在双眼的前视野，在白化大鼠中引发了反向视动性眼球震颤。之前在白化兔和小鼠中也观察到了同样的现象，有人认为这是由于白化动物中未交叉的视神经纤维数量异常少所致。
