Young chickens learn to localize the centre of a spatial environment
Young chickens learn to localize the centre of a spatial environment
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小鸡学习定位空间环境的中心
DOI：
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发表时间：
1997
期刊：
影响因子：
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通讯作者：
M. Zanforlin
中科院分区：
文献类型：
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作者：
L. Tommasi;G. Vallortigara;M. Zanforlin
摘要在一个封闭的均匀竞技场的中心训练小鸡通过抓地寻找食物，然后在面积相似但形状不同的竞技场中进行测试。鸡在正方形竞技场中表现出局部搜索行为，并且当放置在圆形或三角形（等边和等腰）竞技场中时保持这种行为。在矩形竞技场中，鸡只沿着长轴沿着表现出更分散的搜索，但搜索往往集中在组成正方形的中心周围和矩形本身的中心周围。当在正方形或三角形竞技场中训练，然后在相同形状但面积更大的竞技场中测试时，鸡在距离竞技场壁的两个不同距离处表现出搜索行为，一个对应于较小（训练）竞技场中的正确距离（即中心），另一个对应于测试竞技场的实际中心。另一方面，在圆形竞技场中，鸡主要在小（训练）圆形竞技场和大（测试）圆形竞技场半径之间的中间距离搜索。这些结果表明，在训练过程中，鸡编码的绝对和相对距离的食物从竞技场的墙壁上的信息，后者的信息更准确时，竞技场显示可识别的功能，如角落。
Abstract Young chickens were trained to find food by ground-scratching in the centre of a closed uniform arena and were then tested in arenas of similar areas but of different shapes. Chickens showed localized searching behaviour in the square-shaped arena, and maintained this behaviour when placed in a circular or triangular (both equilateral and isosceles) arena. With a rectangular-shaped arena, obtained by doubling the original square-shaped one, chickens showed more dispersed searching along the major axis, but searching tended to be concentrated around the centres of the composing squares and around the centre of the rectangle itself. When trained in a square- or triangle-shaped arena and then tested in an arena of the same shape but a larger area, chickens displayed searching behaviour at two different distances from the wall of the arena, one corresponding to the correct distance (i.e. centre) in the smaller (training) arena, the other to the actual centre of the test arena. On the other hand, in a circular arena, chickens searched mainly at a distance midway between the radius of the small (training) and of the large (testing) circular arena. These results suggest that, during training, chickens encoded information on both the absolute and the relative distance of the food from the walls of the arena, the latter information being more accurate when the arena displayed identifiable features such as corners.