Recently, evidence for acoustic universals in vocal communication was found by demonstrating that humans can identify levels of arousal in vocalizations produced by species across three biological classes (Filippi et al., 2017). Here, we extend this work by testing whether two vocal learning species, humans and chickadees, can discriminate vocalizations of high and low arousal using operant discrimination go/no-go tasks. Stimuli included vocalizations from nine species: giant panda, American alligator, common raven, hourglass treefrog, African elephant, Barbary macaque, domestic pig, black-capped chickadee, and human. Subjects were trained to respond to high or low arousal vocalizations, then tested with additional high and low arousal vocalizations produced by each species. Chickadees (Experiment 1) and humans (Experiment 2) learned to discriminate between high and low arousal stimuli and significantly transferred the discrimination to additional panda, human, and chickadee vocalizations. Finally, we conducted discriminant function analyses using four acoustic measures, finding evidence suggesting that fundamental frequency played a role in responding during the task. However, these analyses also suggest roles for other acoustic factors as well as familiarity. In sum, the results from these studies provide evidence that chickadees and humans are capable of perceiving arousal in vocalizations produced by multiple species. (PsycINFO Database Record (c) 2019 APA, all rights reserved).

中文翻译：

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听到他们的吼叫：在所有类型的陆生脊椎动物中，黑头山雀（Poecile atricapillus）和人类（Homo sapiens）对发声的觉悟的比较。

最近，通过证明人类可以识别三种生物学类别的物种产生的发声中的觉醒水平，发现了语音交流中的普适性证据（Filippi et al。，2017）。在这里，我们通过测试两种语音学习物种（人类和山雀）是否可以通过使用操作性判断去/不去任务来区分高和低觉醒的发声来扩展这项工作。刺激包括来自九种物种的发声：大熊猫，美洲短吻鳄，普通乌鸦，沙漏树蛙，非洲大象，巴巴里猕猴，家猪，黑头山雀和人类。训练受试者对高或低唤起发声的反应，然后用每种物种产生的其他高和低唤起发声进行测试。山雀（实验1）和人类（实验2）学会了区分高和低刺激刺激，并将这种区别转移到其他熊猫，人和山雀发声中。最后，我们使用四种声学方法进行了判别功能分析，发现证据表明基本频率在任务执行过程中起了一定作用。但是，这些分析也暗示了其他声学因素的作用以及熟悉程度。总之，这些研究的结果提供了证据，表明山雀和人类能够感知多种物种发出的发声。（PsycINFO数据库记录（c）2019 APA，保留所有权利）。和山雀发声。最后，我们使用四种声学方法进行了判别功能分析，发现证据表明基本频率在任务执行过程中起了一定作用。但是，这些分析也暗示了其他声学因素的作用以及熟悉程度。总之，这些研究的结果提供了证据，表明山雀和人类能够感知多种物种发出的发声。（PsycINFO数据库记录（c）2019 APA，保留所有权利）。和山雀发声。最后，我们使用四种声学方法进行了判别功能分析，发现证据表明基本频率在任务执行过程中起了一定作用。但是，这些分析也暗示了其他声学因素的作用以及熟悉程度。总之，这些研究的结果提供了证据，表明山雀和人类能够感知多种物种发出的发声。（PsycINFO数据库记录（c）2019 APA，保留所有权利）。这些研究的结果提供了证据，表明山雀和人类能够感知多种物种发出的发声。（PsycINFO数据库记录（c）2019 APA，保留所有权利）。这些研究的结果提供了证据，表明山雀和人类能够感知多种物种发出的发声。（PsycINFO数据库记录（c）2019 APA，保留所有权利）。