Absence of overshadowing and blocking between landmarks and the geometric cues provided by the shape of a test arena
Absence of overshadowing and blocking between landmarks and the geometric cues provided by the shape of a test arena
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DOI：
10.1080/02724990244000214
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发表时间：
2003-02-01
期刊：
影响因子：
--
通讯作者：
Pearce, JM
中科院分区：
文献类型：
--
作者：
Hayward, A;McGregor, A;Pearce, JM
在三个实验中，老鼠被要求通过游泳到水下平台从水池中逃生。平台的位置由水池的形状决定，水池可以是矩形的，也可以是三角形的。位于平台附近池面上的地标未能遮盖(实验1)或阻止(实验2)参照池子的形状了解平台的位置。实验3揭示了池外的线索也有类似的结果，除了池的形状外，还可以用来确定平台的位置。这些发现表明，假设刺激必须相互竞争以获得控制的学习理论可能不适用于基于环境形状的空间学习。
In three experiments rats were required to escape from a pool of water by swimming to a submerged platform. The position of the platform was determined by the shape of the pool, which was either rectangular or triangular. A landmark that was located on the surface of the pool near the platform failed to overshadow (Experiment 1) or block (Experiment 2) learning about the position of the platform with reference to the shape of the pool. Experiment 3 revealed a similar outcome with cues outside the pool, which could be used, in addition to the shape of the pool, to identify the location of the platform. These findings imply that theories of learning that assume that stimuli must compete with each other for the control that they acquire may not apply to spatial learning based on the shape of the environment.