Tunkl J E, Berkley M A
J Comp Neurol. 1977 Dec 15;176(4):575-87. doi: 10.1002/cne.901760408.
The rate of acquisition of visual form discriminations in cats with superior colliculus damage was measured in a testing apparatus requiring a minimal amount of stimulus localization in space. In animals with bilateral superior colliculus ablations, acquisition was imparied relative to acquisition in normal animals. In these animals, the extent of the lesion was related to the severity of the deficit. In split-brain preparations with unilateral superior colliculus ablations, acquisition with the eye ipsilateral to the lesion was impaired relative to acquisition with eye contralateral to the lesion. The deficits observed did not depend upon damage to pretectum. The results support the conclusion that the superior colliculus participates in certain aspects of form vision.
在一个对空间中刺激定位要求最低的测试装置中，测量了上丘受损的猫获得视觉形状辨别能力的速率。在双侧上丘切除的动物中，相对于正常动物，其获得能力受到损害。在这些动物中，损伤的程度与缺陷的严重程度相关。在单侧上丘切除的裂脑标本中，与损伤对侧眼相比，损伤同侧眼的获得能力受损。观察到的缺陷并不取决于顶盖前区的损伤。这些结果支持了上丘参与形状视觉某些方面的结论。
