Same/different discrimination learning with trial-unique stimuli
Same/different discrimination learning with trial-unique stimuli
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DOI：
10.3758/pbr.15.3.644
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发表时间：
2008-06-01
影响因子：
3.5
通讯作者：
Wasserman, Edward A.
中科院分区：
文献类型：
--
作者：
Brooks, Daniel I.;Wasserman, Edward A.
同一/不同辨别学习中的一个长期存在的问题是个体刺激记忆通过重复呈现的可能作用。消除重复的任何影响的目的促使我们设计一种新的方法来产生试验独特的刺激。这些刺激是由16个马赛克组成的阵列，每个马赛克包含16个单元，可以填充16个可能的亮度级别。在实验1中，我们成功地训练了4个鸽子与这些审判独特的刺激，在两个选择强迫选择相同/不同的歧视任务，80%的正确选择的表现。我们后来进行了两个测试，探索这种歧视的性质，并建议鸽子比较阵列中的马赛克的基础上，他们的空间配置，而不是在较低水平的感知特性的基础上。在实验2中，大学生对同样的训练和测试序列的反应相似。我们的研究结果表明，鸽子和人可能在关系辨别学习中使用类似的机制。
A long-standing issue in same/different discrimination learning concerns the possible role of individual stimulus memory through repeated presentation. The aim of eliminating any effect of repetition prompted us to devise a new method for generating trial-unique stimuli. These stimuli were arrays of 16 mosaics, each containing 16 cells, which could be filled with 16 possible luminance levels. In Experiment 1, we successfully trained 4 pigeons with these trial-unique stimuli in a two-alternative forced choice same/different discrimination task to 80% correct-choice performance. We later conducted two tests that explored the nature of this discrimination and suggested that pigeons compared the mosaics in the arrays on the basis of their spatial configurations, not on the basis of lower level perceptual properties. In Experiment 2, college students responded similarly to the same sequence of training and testing. Our results suggest that pigeons and people may use similar mechanisms in relational discrimination learning.