在小鼠中使用“是/否”任务区分部分与整体超声发声。
Discrimination of partial from whole ultrasonic vocalizations using a go/no-go task in mice.
作者信息
Holfoth David P, Neilans Erikson G, Dent Micheal L
机构信息
Department of Psychology, University at Buffalo, The State University of New York, Buffalo, New York 14260.
出版信息
J Acoust Soc Am. 2014 Dec;136(6):3401. doi: 10.1121/1.4900564.
Mice are a commonly used model in hearing research, yet little is known about how they perceive conspecific ultrasonic vocalizations (USVs). Humans and birds can distinguish partial versions of a communication signal, and discrimination is superior when the beginning of the signal is present compared to the end of the signal. Since these effects occur in both humans and birds, it was hypothesized that mice would display similar facilitative effects with the initial portions of their USVs. Laboratory mice were tested on a discrimination task using operant conditioning procedures. The mice were required to discriminate incomplete versions of a USV target from a repeating background containing the whole USV. The results showed that the mice had difficulty discriminating incomplete USVs from whole USVs, especially when the beginning of the USVs were presented. This finding suggests that the mice perceive the initial portions of a USV as more similar to the whole USV than the latter parts of the USV, similar to results from humans and birds.
小鼠是听力研究中常用的模型，但对于它们如何感知同种个体的超声波发声（USV）却知之甚少。人类和鸟类能够区分通信信号的部分版本，并且与信号结尾部分相比，当信号开头部分存在时，辨别能力更强。由于这些效应在人类和鸟类中都存在，因此推测小鼠对于其USV的初始部分会表现出类似的促进效应。使用操作性条件反射程序，对实验室小鼠进行了一项辨别任务测试。要求小鼠从包含完整USV的重复背景中辨别出USV目标的不完整版本。结果表明，小鼠很难将不完整的USV与完整的USV区分开来，尤其是当呈现USV开头部分时。这一发现表明，与USV的后部分相比，小鼠将USV的初始部分视为与整个USV更相似，这与人类和鸟类的结果类似。
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