Sligar C M, Voneida T J
J Comp Neurol. 1976 Jan 1;165(1):107-24. doi: 10.1002/cne.901650109.
Suction lesions were placed in the optic tecta of 36 blind cave fish. Three main bundles of tectal efferents were observed. A large, caudally directed fascicle distributes to the ipsilateral torus semicircularis, nucleus isthmi, and lateral tegmental areas of the mesencephalon and pons via the ipsilateral tectobulbar tract. Contralaterally, this fascicle descends to pontine levels as the contralateral tectobulbar tract. A second, rostrally directed bundle exits from the tectum at two levels. A small fascicle leaves from the caudal tectum and ascends rostrally as the commissura transversa. This bundle then joins with more rostrally exiting fibers and the combined fascicles collect in the area of the medial optic tract. They remain in this position until the level of the postoptic commissure where they decussate. Subsequently, this bundle moves caudally and enters the contralateral tectum at its most rostral extreme. The third bundle of tectofugal efferents leaves the tectum medially, at the level of the lesion, and enters the tectal commissure, through which it is distributed to the ipsilateral torus longitudinalis and contralateral optic tectum.
在36条盲穴鱼的视顶盖处制造抽吸性损伤。观察到视顶盖传出纤维的三个主要束。一束粗大的、尾向的纤维束通过同侧顶盖延髓束分布到同侧半规管隆起、峡核以及中脑和脑桥的外侧被盖区。在对侧，这束纤维束作为对侧顶盖延髓束下降至脑桥水平。第二束，头向的纤维束在两个层面从顶盖发出。一束小的纤维束从尾侧顶盖发出，作为横连合向上延伸。然后这束纤维与更多从头侧发出的纤维会合，合并后的纤维束聚集在内侧视束区域。它们一直保持在这个位置，直到视交叉后连合水平，在那里它们交叉。随后，这束纤维向尾侧移动，在最头端进入对侧顶盖。第三束视顶盖传出纤维在损伤层面从顶盖内侧发出，进入顶盖连合，通过它分布到同侧纵行隆起和对侧视顶盖。
