OVERSHADOWING IN LANDMARK LEARNING - TOUCH-SCREEN STUDIES WITH PIGEONS AND HUMANS
OVERSHADOWING IN LANDMARK LEARNING - TOUCH-SCREEN STUDIES WITH PIGEONS AND HUMANS
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DOI：
10.1037/0097-7403.21.2.166
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发表时间：
1995-04-01
期刊：
影响因子：
--
通讯作者：
SPETCH, ML
中科院分区：
文献类型：
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作者：
SPETCH, ML
Overshadowing in landmark learning was studied in pigeons and undergraduates using a touch-screen spatial search task. Ss searched for an unmarked goal presented in varied locations on a computer screen. Graphic stimuli served as landmarks. The effect of the presence of other landmarks on the control acquired by a given landmark was assessed using a design in which each S was trained with 2 sets of landmarks. Both pigeons (Experiment 1) and humans (Experiments 2-4) showed evidence of learning more about a landmark that was the closest landmark of its set to the goal than about a landmark that was of equal distance to the goal but was not the closest landmark of its set. That is, control by a landmark was overshadowed when it occurred together with a landmark that was closer to the goal. Landmark effectiveness appears to depend not only on the absolute properties of a landmark but on relative factors. The relevance of basic principles of associative learning to spatial landmark learning is discussed.
