Boundary primacy in spatial mapping: Evidence from zebrafish (Danio rerio)
Boundary primacy in spatial mapping: Evidence from zebrafish (Danio rerio)
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DOI：
10.1016/j.beproc.2015.07.012
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发表时间：
2015-10-01
影响因子：
1.3
通讯作者：
Sovrano, Valeria Anna
中科院分区：
文献类型：
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作者：
Lee, Sang Ah;Ferrari, Ambra;Sovrano, Valeria Anna
在周围环境中定位的能力对任何导航动物来说都是至关重要的。几十年来对哺乳动物空间表征的研究表明，环境边界在导航行为和海马体位置编码中都起着重要作用。尽管包括鸟类和鱼类在内的脊椎动物都有空间映射的能力，但尚不清楚这种能力上的相似性是否反映了共同的潜在机制。本研究通过探测斑马鱼使用各种视觉线索来编码附近同种动物的位置，测试了斑马鱼空间映射中的线索特异性。结果表明，未经训练的斑马鱼，就像迄今为止测试的其他脊椎动物一样，主要依靠环境边界来计算空间关系，同时使用其他可见特征，如表面标记和独立物体作为目标位置的局部线索。我们认为，脊椎动物自发空间映射行为的特异性模式揭示了其潜在神经表征的跨物种共性。(C) 2015 Elsevier B.V.版权所有
The ability to map locations in the surrounding environment is crucial for any navigating animal. Decades of research on mammalian spatial representations suggest that environmental boundaries play a major role in both navigation behavior and hippocampal place coding. Although the capacity for spatial mapping is shared among vertebrates, including birds and fish, it is not yet clear whether such similarities in competence reflect common underlying mechanisms. The present study tests cue specificity in spatial mapping in zebrafish, by probing their use of various visual cues to encode the location of a nearby conspecific. The results suggest that untrained zebrafish, like other vertebrates tested so far, rely primarily on environmental boundaries to compute spatial relationships and, at the same time, use other visible features such as surface markings and freestanding objects as local cues to goal locations. We propose that the pattern of specificity in spontaneous spatial mapping behavior across vertebrates reveals cross-species commonalities in its underlying neural representations. (C) 2015 Elsevier B.V. All rights reserved.