Stable panoramic views facilitate snap-shot like memories for spatial reorientation in homing pigeons.

Stable panoramic views facilitate snap-shot like memories for spatial reorientation in homing pigeons.
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DOI:
10.1371/journal.pone.0022657
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发表时间:
2011
期刊:
影响因子:
3.7
通讯作者:
Vallortigara G
Vallortigara G
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Pecchia T;Gagliardo A;Vallortigara G

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在空间迷失方向之后,动物可以依靠几何线索(度量和感觉)重新定位,这些线索由封闭空间的宏观表面布局和阵列中突出的视觉地标指定。地标阵列中的空间重新定位是否基于几何线索的显式表示是一个有争议的问题。在这里,我们训练信鸽(Columba Livia)在由四个相同或不同颜色的管子组成的矩形阵列中定位食物奖励,这些管子有四个开口,其中只有一个允许鸟类获得食物奖励。训练鸽子时,管子上的开口位置是稳定的或可变的,这样它们就可以从相同或可变的角度观察阵列。无论访问条件如何,配置几何图形的显式映射将预测成功的重定向。相比之下,我们发现稳定的阵列视图促进了信鸽的空间学习,这可能是通过形成类似快照的记忆来实现的。
Following spatial disorientation, animals can reorient themselves by relying on geometric cues (metric and sense) specified both by the macroscopic surface layout of an enclosed space and prominent visual landmarks in arrays. Whether spatial reorientation in arrays of landmarks is based on explicit representation of the geometric cues is a matter of debate. Here we trained homing pigeons (Columba livia) to locate a food-reward in a rectangular array of four identical or differently coloured pipes provided with four openings, only one of which allowed the birds to have access to the reward. Pigeons were trained either with a stable or a variable position of the opening on pipes, so that they could view the array either from the same or a variable perspective. Explicit mapping of configural geometry would predict successful reorientation irrespective of access condition. In contrast, we found that a stable view of the array facilitated spatial learning in homing pigeons, likely through the formation of snapshot-like memories.
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