Cognitive Control of Distinct Vocalizations in Rhesus Monkeys
Cognitive Control of Distinct Vocalizations in Rhesus Monkeys
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DOI：
10.1162/jocn_a_00428
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发表时间：
2013-10-01
影响因子：
3.2
通讯作者：
Nieder, Andreas
中科院分区：
文献类型：
--
作者：
Hage, Steffen R.;Gavrilov, Natalja;Nieder, Andreas
非人灵长类动物是否可以将其先天发声与伴随的唤醒水平或环境中的特定事件脱钩，以实现对其发声的认知控制，这一直是几十年来争论的问题。我们表明，恒河猴可以训练，以引起不同的呼叫类型的命令，在任意的视觉线索。此外，我们报告说，猴子学会了两个不同的呼叫类型之间切换，从审判到审判，以响应不同的视觉线索。基于信号检测理论的受控行为协议和数据分析表明，可以排除非认知因素作为猴子发声的原因。我们的研究结果还表明，猴子也有基本的控制声学呼叫参数。这些发现表明，猴子能够有意识地启动它们的声音产生，因此，能够将它们的声音行为工具化以成功地执行行为任务。
Whether nonhuman primates can decouple their innate vocalizations from accompanied levels of arousal or specific events in the environment to achieve cognitive control over their vocal utterances has been a matter of debate for decades. We show that rhesus monkeys can be trained to elicit different call types on command in response to arbitrary visual cues. Furthermore, we report that a monkey learned to switch between two distinct call types from trial to trial in response to different visual cues. A controlled behavioral protocol and data analysis based on signal detection theory showed that noncognitive factors as a cause for the monkeys' vocalizations could be excluded. Our findings also suggest that monkeys also have rudimentary control over acoustic call parameters. These findings indicate that monkeys are able to volitionally initiate their vocal production and, therefore, are able to instrumentalize their vocal behavior to perform a behavioral task successfully.