ULTRASONIC VOCALIZATIONS BY RAT PUPS IN THE COLD - AN ACOUSTIC BY-PRODUCT OF LARYNGEAL BRAKING
ULTRASONIC VOCALIZATIONS BY RAT PUPS IN THE COLD - AN ACOUSTIC BY-PRODUCT OF LARYNGEAL BRAKING
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DOI：
10.1037/0735-7044.104.5.808
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发表时间：
1990-10-01
影响因子：
1.9
通讯作者：
ALBERTS, JR
中科院分区：
文献类型：
--
作者：
BLUMBERG, MS;ALBERTS, JR
孤立的大鼠幼崽对冷暴露的生理反应是通过增加代谢产热，行为反应是通过发射超声波。通过监测10-12日龄幼仔冷暴露期间的耗氧量、棕色脂肪组织产热、呼吸频率和超声产生，研究了这2种反应之间的关系。所有3项生理指标均随超声启动而增加。幼仔还表现出呼吸模式，其特征在于呼气持续时间相对于吸气持续时间的延长。在这些延长的呼吸期间经常检测到超声波，表明幼仔正在使用喉制动。喉制动被认为可以增强肺部的氧摄取。因此，超声波可能是呼吸操作的声学副产品，其在冷暴露期间增加向代谢活性组织的氧气输送。（PsycINFO数据库记录（c）2016阿帕，保留所有权利）
Isolated rat pups respond to cold exposure physiologically by increasing metabolic heat production and behaviorally by emitting ultrasound. The relationship between these 2 responses was investigated by monitoring oxygen consumption, heat production by brown adipose tissue, respiratory rate, and ultrasound production during cold exposure in pups 10–12 days of age. All 3 physiological measures increased contemporaneously with the initiation of ultrasound. Pups also exhibited a respiratory pattern characterized by the prolongation of expiratory duration in relation to inspiratory duration. Ultrasound was often detected during these prolonged expirations, suggesting that pups were using laryngeal braking. Laryngeal braking is thought to enhance oxygen uptake in the lungs. Thus, ultrasound may be an acoustic by-product of a respiratory maneuver that increases oxygen delivery to metabolically active tissues during cold exposure.(PsycINFO Database Record (c) 2016 APA, all rights reserved)