Asymmetry of attentional set in rhesus monkeys learning colour and shape discriminations
Asymmetry of attentional set in rhesus monkeys learning colour and shape discriminations
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DOI：
10.1080/17470210600971485
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发表时间：
2007-01-01
影响因子：
1.7
通讯作者：
Gaffan, David
中科院分区：
文献类型：
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作者：
Baxter, Mark G.;Gaffan, David
我们训练恒河猴的六个视觉辨别问题，使用不同的形状和颜色的刺激。对于一组动物来说，在这六个问题中，形状总是相关的，而颜色总是无关紧要的，而对于其他动物来说，反之亦然。在这些“维内转移”（ID）的问题是学习在相同的速度由两组，形状相关和颜色相关。然后，我们训练了三个进一步的问题，其中另一个维度现在是相关的“额外的维度转移”，艾德）。当从颜色相关转换到形状相关时，动物表现出较慢的学习速度，但从形状相关转换到颜色相关时则没有。这些结果表明，猴子的能力，选择性地参加相关的刺激尺寸和忽略无关的尺寸取决于实验者的选择相关和无关的尺寸。
We trained rhesus monkeys on six visual discrimination problems using stimuli that varied in both shape and colour. For one group of animals shape was always relevant in these six problems, and colour always irrelevant, and for the other animals vice versa. During these "intradimensional shifts" (ID) the problems were learned at equal rates by the two groups, shape-relevant and colour-relevant. We then trained three further problems in which the other dimension was now relevant "extradimensional shifts", ED). The animals showed slower learning when shifting from colour-relevant to shape-relevant, but not when shifting from shape-relevant to colour-relevant. These results show that monkeys' ability to selectively attend to a relevant stimulus dimension and to ignore an irrelevant dimension depends on the experimenter's choice of relevant and irrelevant dimensions.