The researchers played a sound and then, after a set period of time that varied between each group, blew a puff of air into the rats' eyes, making them blink.

研究人员播放一种声音，然后隔一段时间(每组的时间长短不同)，向老鼠的眼睛内吹一阵气，令它们眨眼睛。

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The researchers played a sound and then, after a set period of time that varied between each group, blew a puff of air into the rats' eyes, making them blink.

ECONOMIST: Neuroscience (2)