塞巴短尾蝠（Carollia perspicillata）的心电图信号

摘要(中文译文)

多项研究已成功利用心电图（ECG）信号来表征蝙蝠的复杂生理现象，如联想学习。然而，目前尚无对这些动物心电图信号结构的全面表征。本研究旨在定量表征蝙蝠物种Carollia perspicillata心电图信号的特征，该物种常用于神经行为学研究。我们的结果表明，C. perspicillata的心电信号遵循典型的哺乳动物模式，即由P波、QRS波群和T波组成。在将其中一个电极连接至右拇指的测量配置中，蝙蝠心电信号的峰峰振幅较大。此外，在氯胺酮/赛拉嗪麻醉的蝙蝠与清醒蝙蝠之间，观察到瞬时心率（HR）分布存在较大差异。氯胺酮/赛拉嗪可能作用于控制心率的神经回路，因此，瞬时心率测量仅应在清醒动物中作为生理标志物使用。

Abstract

A number of studies have successfully used electrocardiogram (ECG) signals to characterize complex physiological phenomena such as associative learning in bats. However, at present, no thorough characterization of the structure of ECG signals is available for these animals. The aim of the present study was to quantitatively characterize features of the ECG signals in the bat species Carollia perspicillata, a species that is commonly used in neuroethology studies. Our results show that the ECG signals of C. perspicillata follow the typical mammalian pattern, in that they are composed by a P wave, QRS complex and a T wave. Peak-to-peak amplitudes in the bats' ECG signals were larger in measuring configurations in which one of the electrodes was attached to the right thumb. In addition, large differences in the instantaneous heart rate (HR) distributions were observed between ketamine/xylazine anesthetized and awake bats. Ketamine/xylazine might target the neural circuits that control HR, therefore, instantaneous HR measurements should only be used as physiological marker in awake animals.

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