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首页> 外文期刊>The European Journal of Neuroscience >Geometry and landmark representation by pigeons: evidence for species-differences in the hemispheric organization of spatial information processing?
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Geometry and landmark representation by pigeons: evidence for species-differences in the hemispheric organization of spatial information processing?

机译：鸽子的几何形状和地标代表：空间信息处理的半球组织中物种差异的证据吗？

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摘要

In this study, we investigated how pigeons (Columba livia) represent environmental geometry and landmark information. Birds learned to locate the centre of a square arena by means of geometric cues alone, or by means of both geometric and landmark cues. By manipulating the type of information available at training and testing, we assessed which cues the birds had encoded, and through the use of monocular occlusion we examined how the information was represented by the two brain hemispheres. Our results show that both brain hemispheres encoded geometric and landmark information. During all viewing conditions, the geometric representation was based mainly on an absolute metric for distance. The relative use of geometry and landmarks was experience dependent. With both brain hemispheres available birds relied, to a greater degree, on geometric information and used it in a more integrated way than with either hemisphere alone. Overall, our findings show a different pattern for the hemispheric encoding of geometric and landmark information by the pigeon than that previously reported for the domestic chick. Our results suggest that the organization of spatial information processing in the left and right brain hemispheres of birds may be more diverse than what is currently known.
机译：在这项研究中，我们调查了鸽子（Columba livia）如何代表环境几何和地标信息。鸟类学会了仅通过几何线索，或者通过几何线索和地标线索来定位方形竞技场的中心。通过操纵训练和测试中可用的信息类型，我们评估了鸟类编码的线索，并且通过使用单眼闭塞，我们检查了两个大脑半球如何表示信息。我们的结果表明，大脑半球都编码了几何和地标信息。在所有观看条件下，几何表示主要基于距离的绝对度量。几何图形和地标的相对使用取决于经验。与单独的两个半球相比，可利用的鸟类在更大的程度上依赖于两个大脑半球的几何信息，并以更加综合的方式使用它。总体而言，我们的发现显示，与以前报道的家禽相比，鸽子对半球的几何和地标信息编码方式有所不同。我们的结果表明，鸟类左脑和右脑半球中空间信息处理的组织可能比目前已知的更加多样化。

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