Strasser R, Bingman V P, Ioalé P, Casini G, Bagnoli P
Psychology Department, Bowling Green State University, OH 43403, USA.
Dev Psychobiol. 1998 Dec;33(4):305-15.
The role of the homing pigeon hippocampal formation was examined in the development of loft fidelity and landmark navigation. During the course of five summers, different groups of young pigeons (hippocampal-lesioned, control-lesioned, and unoperated controls) were given free flight experience followed by short distance training and experimental releases. In Experiment 1, a census of which loft each pigeon entered revealed that hippocampal lesioned pigeons displayed less loft fidelity than controls. In Experiment 2 and 3, the percent of young birds lost during their first summer of training and their first experimental release was examined. Despite displaying similarly good homeward-oriented vanishing bearings, significantly more hippocampal lesioned pigeons were lost compared to control groups. The results support the hypothesis that the homing pigeon hippocampal formation participates in the learning/operation of a spatial representation of local landmarks near the loft that can be used for loft recognition and navigation.
研究了归巢鸽海马结构在鸽舍忠诚度和地标导航发展中的作用。在五个夏天的时间里，对不同组的幼鸽（海马损伤组、对照损伤组和未手术对照组）进行自由飞行体验，随后进行短距离训练和实验放飞。在实验1中，对每只鸽子进入哪个鸽舍的统计显示，海马损伤的鸽子表现出的鸽舍忠诚度低于对照组。在实验2和3中，研究了幼鸽在训练的第一个夏天和第一次实验放飞期间丢失的百分比。尽管两组鸽子在归巢方向消失角的表现相似，但与对照组相比，海马损伤的鸽子丢失的数量明显更多。这些结果支持了这样的假设，即归巢鸽的海马结构参与了对鸽舍附近局部地标的空间表征的学习/运作，该空间表征可用于鸽舍识别和导航。
