Pigeon (Columba livia) encoding of a goal location: the relative importance of shape geometry and slope information.
Pigeon (Columba livia) encoding of a goal location: the relative importance of shape geometry and slope information.
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目标位置的鸽子（Columba livia）编码：形状几何和坡度信息的相对重要性。
DOI：
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发表时间：
2009
影响因子：
1.4
通讯作者：
V. Bingman
中科院分区：
文献类型：
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作者：
D. Nardi;V. Bingman
在许多脊椎动物群体中，已经显示出使用环境的几何形状作为目标定位的定向线索的能力。然而，在实验上，几何空间任务通常在水平表面上执行。本研究探索了在垂直维度上延伸的表面--斜坡上的训练如何影响几何任务的学习。在参考记忆任务中，训练鸽子(Columba Livia)在等腰梯形竞技场中定位目标。在斜坡上的学习比在平坦的表面上进行得更快或错误更少，大概是因为从倾斜的表面上可以提取动觉、前庭和视觉信息。实验一表明，尽管竞技场的几何形状是编码的，但在斜坡上训练的鸽子是由基于斜坡垂直轴和直交轴的目标表征来指导解决任务的。实验二表明，在斜坡上进行训练既不会影响几何学习，也不会促进几何学习。这些数据突显了坡度作为球门定位的分配中心线索的潜在重要作用。
The ability to use the geometric shape of an environment as an orienting cue for goal location has been shown in many vertebrate groups. Experimentally, however, geometric spatial tasks are typically carried out on horizontal surfaces. The present study explored how learning a geometry task is affected by training on a surface extending in the vertical dimension-a slope. In a reference memory task, pigeons (Columba livia) were trained to locate a goal in an isosceles trapezoid arena. Learning on a slope proceeded more rapidly or with fewer errors than on a flat surface, presumably because of kinesthetic, vestibular, and visual information extractable from an inclined surface. Experiment 1 showed that, although the geometric shape of the arena was encoded, pigeons trained on a slope were guided by a goal representation based on the vertical and orthogonal axes of the slope to solve the task. Experiment 2 revealed that geometric learning was neither overshadowed nor facilitated by training on a slope. The data highlight a potentially important role for slope as an allocentric cue for goal location.