Summation and numerousness judgments of sequentially presented sets of items by chimpanzees (Pan troglodytes).
Summation and numerousness judgments of sequentially presented sets of items by chimpanzees (Pan troglodytes).
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DOI：
10.1037/0735-7036.115.2.181
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发表时间：
2001-06
影响因子：
1.4
通讯作者：
M. Beran
中科院分区：
文献类型：
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作者：
M. Beran
2黑猩猩（Pan troglodytes）的总和和众多的判断进行了调查时，2数量的M& M的顺序，和数量从来没有看到他们的整体。每个M&M仅在放入2个杯子中的1个之前可见。在实验1中，呈现了1至9个M& M的组。在实验2中，每个杯子中的量被呈现为2个较小的集合（例如，2 + 2对4 + 1）。在实验3中，数量被呈现为3个较小的集合（例如，2 + 2 + 3 vs. 3 + 4 + 1）。在实验4中，在黑猩猩选择之前，从1组中删除M&M。在实验1和实验2中，黑猩猩在比随机预测更多的试验中选择了更大的数量。在实验3和4中，1只黑猩猩的表现明显好于偶然。因此，黑猩猩在心理上表征数量，并成功地将不可见的、按顺序呈现的项目集合联合收割机进行组合和比较。
Summation and numerousness judgments by 2 chimpanzees (Pan troglodytes) were investigated when 2 quantities of M&Ms were presented sequentially, and the quantities were never viewed in their totality. Each M&M was visible only before placement in 1 of 2 cups. In Experiment 1, sets of 1 to 9 M&Ms were presented. In Experiment 2, the quantities in each cup were presented as 2 smaller sets (e.g., 2 + 2 vs. 4 + 1). In Experiment 3, the quantities were presented as 3 smaller sets (e.g., 2 + 2 + 3 vs. 3 + 4 + 1). In Experiment 4, an M&M was removed from 1 set before the chimpanzees' selection. In Experiments 1 and 2, the chimpanzees selected the larger quantity on significantly more trials than would be predicted by chance. In Experiments 3 and 4, 1 chimpanzee performed at a level significantly better than chance. Therefore, chimpanzees mentally represent quantity and successfully combine and compare nonvisible, sequentially presented sets of items.