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首页> 外文期刊>Animal Behavior and Cognition >Preregistered Report: Exploring Decoy Effects on Computerized Task Preferences in Rhesus Monkeys (Macaca mulatta)
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Preregistered Report: Exploring Decoy Effects on Computerized Task Preferences in Rhesus Monkeys (Macaca mulatta)

机译：预注册报告：探索对猕猴（Macaca mulatta）中计算机任务首选项的诱饵影响

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The asymmetric dominance effect or decoy effect emerges when a third inferior option is introduced to a choice set. The decoy option, although typically not chosen, impacts relative preference for the original two options. This decisional bias stands in contrast with rational choice theory, which dictates that choice behavior should remain consistent for the original options with the addition of different alternatives to a choice set such as the decoy. In the current study, we assessed the decoy effect in rhesus monkeys using a computerized task battery that introduced two different computerized tasks, including a matching-to-sample task and a psychomotor task called PURSUIT. Decoy tasks were designed such that they were inferior versions of these original task options, requiring longer time to completion (via slowed cursor speeds) and subsequently reduced reinforcement rates. Monkeys learned to associate unique icons for each task (including for decoy tasks), and used these icons to select their preferred task from a choice set of two to three task options. Monkeys learned to perform all tasks, but did not show evidence of the decoy effect using this task preference paradigm. We discuss the role of initial task preference (and task biases), task type (symbolic vs. perceptual), and decoy effect sizes in light of these findings. We contrast the current results to previous findings of the decoy effect in rhesus monkeys using a perceptual paradigm as well as to other evidence of the decoy effect in non-primate animal species.
机译：当第三个劣质期权引入选择集时，就会出现不对称的主导效应或诱饵效应。诱饵选项，尽管通常不选择，但会影响原始两个选项的相对偏好。这种决策偏向与理性选择理论相反，理性选择理论指出，对于诱饵等选择集要添加不同的选择，选择行为应与原始选择保持一致。在当前的研究中，我们使用计算机化的任务电池评估了恒河猴的诱饵效果，该电池引入了两种不同的计算机化任务，包括匹配样本任务和称为PURSUIT的精神运动任务。设计诱饵任务时，它们是这些原始任务选项的劣等版本，需要较长的时间才能完成（通过降低光标速度），从而降低了加固率。猴子学会了为每个任务（包括诱饵任务）关联唯一的图标，并使用这些图标从两到三个任务选项的选择集中选择自己喜欢的任务。猴子学会了执行所有任务，但没有使用此任务偏好范式显示诱饵效果的证据。根据这些发现，我们讨论了初始任务偏好（和任务偏见），任务类型（符号与感知）以及诱饵效果大小的作用。我们将当前结果与使用知觉范式在恒河猴中诱饵作用的先前发现以及非灵长类动物物种中诱饵作用的其他证据进行对比。

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