Yinon U, Hammer A
Exp Brain Res. 1985;58(3):552-8. doi: 10.1007/BF00235871.
The ocular dominance, responsiveness level and receptive field properties of single cortical cells were studied in 12 acute and chronic split chiasm adult cats (729 cells) and in 13 normal controls (544 cells). Recording was made from the border between visual areas 17/18. Responsive cells in the operated cats were obtained exclusively (87.1%) following stimulation of the ipsilateral eye, except for a very few cells (2.5%) which were binocularly driven. In comparison, only few (10.9%) of the cells in the normal control cats were driven ipsilaterally and the majority of them (74.5%) were binocularly driven. Relatively small proportions of cells (46.1%) were visually responsive in the acute (less than 1 week postoperatively) and in the most chronic (greater than 6 months) cats, in comparison to the normal cats (87.3%). No consistent change was found in the responsiveness level of cortical cells as function of length of the survival time (correlation coefficient: -0.45). Only a very slight tendency for a relative increase in binocularly driven cells with survival time was found as well as a reduction in the proportion of nonspecific cells. However, in view of the general absence of binocularity and responsivity in these cats, it was concluded that no recovery was found, even long after the elimination of the contralateral inputs.
在12只急性和慢性视交叉切开的成年猫（729个细胞）以及13只正常对照猫（544个细胞）中，研究了单个皮质细胞的眼优势、反应水平和感受野特性。记录是在视觉区域17/18的边界进行的。在手术猫中，仅在刺激同侧眼后获得反应细胞（87.1%），只有极少数细胞（2.5%）是双眼驱动的。相比之下，正常对照猫中只有少数（10.9%）细胞由同侧驱动，大多数（74.5%）是双眼驱动的。与正常猫（87.3%）相比，急性（术后不到1周）和最慢性（超过6个月）猫中视觉反应细胞的比例相对较小（46.1%）。未发现皮质细胞的反应水平随存活时间长度有一致变化（相关系数：-0.45）。仅发现双眼驱动细胞随存活时间有非常轻微的相对增加趋势，以及非特异性细胞比例的降低。然而，鉴于这些猫普遍缺乏双眼性和反应性，得出的结论是，即使在消除对侧输入很久之后，也未发现恢复情况。
