Understanding of the concept of numerically "less" by bottlenose dolphins (Tursiops truncatus)
Understanding of the concept of numerically "less" by bottlenose dolphins (Tursiops truncatus)
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DOI：
10.1037/0735-7036.119.3.296
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发表时间：
2005-08-01
影响因子：
1.4
通讯作者：
Guarino, E
中科院分区：
文献类型：
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作者：
Jaakkola, K;Fellner, W;Guarino, E
在2个实验中，短吻海豚（Tursiops truncatus）判断新的数字之间的顺序关系。海豚首先被训练在只有几个特定比较的情况下选择项目数量较少的样本（例如，2对6、1对3和3对7）。然后通过向海豚提供1和8之间所有可能的成对比较来测试这一规则的推广。海豚选择了项目数量较少的样本，其水平远高于偶然性，这表明它们能够识别和代表有序尺度上的数量。他们的误差模式与潜在的模拟震级表示的想法是一致的。
In 2 experiments, bottlenose dolphins (Tursiops truncatus) judged the ordinal relationship between novel numerosities. The dolphins were first trained to choose the exemplar with the fewer number of items when presented with just a few specific comparisons (e.g., 2 vs. 6, 1 vs. 3, and 3 vs. 7). Generalization of this rule was then tested by presenting the dolphins with all possible pairwise comparisons between 1 and 8. The dolphins chose the exemplar with the fewer number of items at levels far above chance, showing that they could recognize and represent numerosities on an ordinal scale. Their pattern of errors was consistent with the idea of an underlying analog magnitude representation.