Potentiation and overshadowing of shape by wall color in a kite-shaped maze using rats in a foraging task
Potentiation and overshadowing of shape by wall color in a kite-shaped maze using rats in a foraging task
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DOI：
10.1016/j.lmot.2010.11.001
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发表时间：
2011-05-01
影响因子：
1.4
通讯作者：
Yates, Lynsey
中科院分区：
文献类型：
--
作者：
Cole, Mark R.;Gibson, Laura;Yates, Lynsey
开放领域搜索任务中冗余几何和特征线索之间的相互作用已被广泛研究，但结果并不总是一致。 Cheng（1986）发现证据表明，当老鼠在矩形环境中寻找食物时，它们使用环境的几何特征而不是局部特征线索，这表明几何特征掩盖了特征线索。最近，格雷厄姆等人。 （2006）和皮尔斯等人。 (2006) 发现墙壁颜色有助于（增强）老鼠在风筝形水迷宫中了解环境形状。本研究中的第一个实验复制了 Graham 等人使用的范例。和皮尔斯等人。使用处于觅食情况的老鼠，但条件相似，发现了相同的结果，颜色增强了形状。实验 2 和 3 显示，在相同条件下，除了测试环境的墙壁颜色与训练期间使用的墙壁颜色不同之外，墙壁颜色对形状的影响不是增强而是遮蔽。结果与对这种情况下墙壁颜色和几何形状之间形成的关联的作用的分析一致（Rhodes 等，2009），并扩展了我们对特征和空间线索如何相互作用的理解。 (C) 2010 Elsevier Inc. 保留所有权利。
The interaction between redundant geometric and featural cues in open field search tasks has been examined widely with results that are not always consistent. Cheng (1986) found evidence that when searching for food in rectangular environments, rats used the geometrical characteristics of the environment rather than local featural cues, suggesting that geometry had overshadowed featural cues. More recently, Graham et al. (2006) and Pearce et al. (2006) found that wall color facilitated (potentiated) learning about the shape of the environment by rats in a kite-shaped water maze. The first experiment in the present research replicated the paradigm used by Graham et al. and Pearce et al. using rats in a foraging situation, but with conditions similar, and found the same results, potentiation of shape by color. Experiments 2 and 3 revealed overshadowing instead of potentiation of shape by wall color under the same conditions except that the wall colors of the test environment were not the same as those used during training. The results are consistent with an analysis of the role of associations formed between wall color and geometry in such situations (Rhodes et al., 2009) and extend our understanding of how featural and spatial cues interact. (C) 2010 Elsevier Inc. All rights reserved.