Sunk Cost: Pigeons (Columba livia), Too, Show Bias To Complete a Task Rather Than Shift to Another
Sunk Cost: Pigeons (Columba livia), Too, Show Bias To Complete a Task Rather Than Shift to Another
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DOI：
10.1037/a0023826
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发表时间：
2012-02-01
影响因子：
1.4
通讯作者：
Watanabe, Shigeru
中科院分区：
文献类型：
--
作者：
Pattison, Kristina F.;Zentall, Thomas R.;Watanabe, Shigeru
沉没成本效应包括倾向于继续使用替代方案，因为一个人已经投入了资源，即使有更好的替代方案可用。在一系列实验中，鸽子(Columba Livia)可以在30啄要求的不同时间点上选择完成反应要求(在实验1中的不同位置或在实验3和4中的相同位置)和切换到固定数量的啄。在三个实验中，鸽子表现出完成已经开始的啄食的倾向，即使这需要更多的啄食。我们还证明，偏差取决于初始投资，而不仅仅是因为鸽子更喜欢可变替代方案而不是固定替代方案。对最优选择的偏离表明，鸽子表现出类似于人类沉没成本效应的偏向。
The sunk cost effect involves the bias to stay with an alternative because one has already invested resources, even when there is a better alternative available. In a series of experiments, at various points during a 30-peck requirement, pigeons (Columba livia) could choose between completing the response requirement (at a different location in Experiment 1 or the same location in Experiments 3 and 4) and switching to a constant number of pecks. In three experiments, the pigeons showed a bias to complete the pecks already started, even when that required more pecking. We also demonstrated that the bias depended on the initial investment and was not produced merely because the pigeons preferred a variable alternative over a fixed alternative. The deviation from optimal choice suggests that pigeons show a bias similar to the sunk cost effect in humans.