Rhesus monkeys' valuation of vocalizations during a free-choice task.
Rhesus monkeys' valuation of vocalizations during a free-choice task.
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DOI：
10.1371/journal.pone.0007834
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发表时间：
2009-11-18
期刊：
影响因子：
3.7
通讯作者：
Cohen YE
中科院分区：
文献类型：
--
作者：
Russ BE;Cohen YE
适应性行为要求动物将当前和过去的信息与他们的决策结合起来。一种重要的信息类型是听觉交流信号（即物种特有的发声）。在这里，我们测试了恒河猴如何将倾听不同物种特定声音的机会纳入决策过程。特别是，我们测试了猴子是如何评价这些声音相对于获得果汁奖励的机会的。为了验证这一假设，猴子从两个目标中选择一个来获得不同的果汁奖励；在其中一个目标中，除了果汁奖励外，还提供了发声。通过滴定两个目标的果汁量，我们量化了猴子的果汁选择与听声音的机会之间的关系。我们发现，恒河猴不愿意放弃大果汁奖励去听发声，这表明，相对于果汁奖励，听发声的价值较低。
Adaptive behavior requires that animals integrate current and past information with their decision-making. One important type of information is auditory-communication signals (i.e., species-specific vocalizations). Here, we tested how rhesus monkeys incorporate the opportunity to listen to different species-specific vocalizations into their decision-making processes. In particular, we tested how monkeys value these vocalizations relative to the opportunity to get a juice reward. To test this hypothesis, monkeys chose one of two targets to get a varying juice reward; at one of those targets, in addition to the juice reward, a vocalization was presented. By titrating the juice amounts at the two targets, we quantified the relationship between the monkeys' juice choices relative to the opportunity to listen to a vocalization. We found that, rhesus were not willing to give up a large juice reward to listen to vocalizations indicating that, relative to a juice reward, listening to vocalizations has a low value.
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影响因子：
2
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通讯作者：
Lucchetti, C
影响因子：
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作者：
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