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首页> 外文期刊>The quarterly journal of experimental psychology: QJEP >Rhesus monkeys lack a consistent peak-end effect
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Rhesus monkeys lack a consistent peak-end effect

机译：恒河猴缺乏一致的峰末效应

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In humans, the order of receiving sequential rewards can significantly influence the overall subjective utility of an outcome. For example, people subjectively rate receiving a large reward by itself significantly higher than receiving the same large reward followed by a smaller one (Do, Rupert, & Wolford, 2008). This result is called the peak-end effect. A comparative analysis of order effects can help determine the generality of such effects across primates, and we therefore examined the influence of reward-quality order on decision making in three rhesus macaque monkeys (Macaca mulatta). When given the choice between a high-low reward sequence and a low-high sequence, all three monkeys preferred receiving the high-value reward first. Follow-up experiments showed that for two of the three monkeys their choices depended specifically on reward-quality order and could not be accounted for by delay discounting. These results provide evidence for the influence of outcome order on decision making in rhesus monkeys. Unlike humans, who usually discount choices when a low-value reward comes last, rhesus monkeys show no such peak-end effect.
机译：在人类中，获得连续奖励的顺序会显着影响结果的总体主观效用。例如，人们主观地认为自己获得的大笔奖励要比获得相同的大笔奖励然后再获得较小​​的奖励高得多（Do，Rupert和Wolfford，2008年）。该结果称为峰端效应。顺序效应的比较分析可以帮助确定这种效应在灵长类动物中的普遍性，因此，我们研究了奖励质量顺序对三只猕猴（猕猴）的决策影响。当在高-低奖励序列和低-高奖励序列之间进行选择时，所有三只猴子都更喜欢先接受高价值奖励。后续实验表明，对于三只猴子中的两只，它们的选择特别取决于奖励质量的顺序，无法通过延迟贴现来解释。这些结果为结果顺序对恒河猴决策的影响提供了证据。与人类不同，人类通常会在低价值的奖励最后时折衷选择，而恒河猴则没有这种峰值效应。

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