Categorical perception, initially thought to be a unique feature of human speech, has been documented in a number of nonhuman animals, but its prevalence and broad importance remain unclear. Green et al. (2020) review the evidence for categorical perception and propose some animal communication contexts in which they expect categorical perception to be important. A good review article goes beyond summarizing the state of the field to propose new questions and directions for research. Green et al (2020) do just that. In particular, after reading their review, we are interested in the features of signals and category boundaries that might enable categorical perception.

中文翻译：

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能够进行分类感知的信号和类别边界：Green等人的评论。

最初被认为是人类语音的独特特征的分类感知已在许多非人类动物中得到了证明，但其普遍性和广泛重要性仍不清楚。格林等。（2020）回顾了分类感知的证据，并提出了一些动物交流的背景，他们认为分类感知很重要。一篇出色的评论文章不仅概述了该领域的现状，还提出了新的研究问题和方向。Green等人（2020年）正是这样做的。特别是，在阅读他们的评论后，我们对可能实现分类感知的信号特征和类别边界感兴趣。