Asymmetries of representation in the visual system of pigeons
Asymmetries of representation in the visual system of pigeons
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DOI：
10.1097/00001756-199812210-00023
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发表时间：
1998-12-21
期刊：
影响因子：
1.7
通讯作者：
Prior, H
中科院分区：
文献类型：
--
作者：
Güntürkün, O;Hellmann, B;Prior, H
尽管在人类和非人类物种中，视觉信息处理过程中的功能不对称早已为人所知，但这些不对称的结构基础在很大程度上是未知的。我们现在报道，由于鸽子的连交投影的不对称性，上升构造视觉系统的左圆核主要代表来自两只眼睛的输入，而右圆核主要代表对侧左眼。我们认为，人类的几种不对称存在类似的组织。当物体穿过垂直子午线时，两个半球的表示可以提供优势半球直接访问所有刺激特征。《神经科学报告》9 (C) 1998。
ALTHOUGH functional asymmetries in the course of visual information processing have been known for a long time in humans as well as in non-human species, the structural basis of these asymmetries is largely unknown. We now report that due to an asymmetry of commissural projections in the pigeon the left nucleus rotundus of the ascending tectofugal visual system predominantly represents inputs from both eyes while the right nucleus rotundus mainly represents the contralateral left eye. We suggest that a comparable organization exists for several asymmetries in humans. A representation of both hemifields can provide the dominant hemisphere with direct access to all stimulus features when objects cross the vertical meridian. NeuroReport 9: 4127-4130 (C) 1998 Lippincott Williams & Wilkins.