| Ultrasonic vocalization, laryngeal braking, and thermogenesis in rat pups: a reappraisal. | |
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MedLine Citation:
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PMID: 8484900 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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In these experiments we tested the hypothesis that the respiratory events underlying rat pup ultrasonic vocalization (USV) facilitate brown adipose tissue (BAT) thermogenesis, as proposed by Blumberg and Alberts (1990). Laryngeal denervation or tracheostomy were used to reduce or eliminate laryngeal braking and prevent USV in 9- to 10-day-old pups during recovery from deep hypothermia and during cooling induced by isolation for 1 hr at room temperature. Both forms of devocalization slowed rewarming of hypothermic pups, but neither had any effects on cooling rate or BAT thermogenesis in normothermic pups that were allowed to cool from 35 degrees C to 29 degrees C. Physiological effects of laryngeal braking on thermogenesis appear to be limited to conditions, such as severe hypothermia, in which ventilatory and oxygen transport functions are compromised. The results have implications for understanding the regulation and evolution of USV. |
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Authors:
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M A Hofer; H N Shair |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Behavioral neuroscience Volume: 107 ISSN: 0735-7044 ISO Abbreviation: Behav. Neurosci. Publication Date: 1993 Apr |
Date Detail:
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Created Date: 1993-06-10 Completed Date: 1993-06-10 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 8302411 Medline TA: Behav Neurosci Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 354-62 Citation Subset: IM; S |
Affiliation:
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Department of Psychiatry, College of Physicians and Surgeons, Columbia University, New York, New York. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adipose Tissue, Brown
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physiology Aging / physiology* Animals Animals, Newborn Body Temperature Regulation / physiology* Evolution Laryngeal Nerves / physiology Larynx / physiology* Maternal Deprivation* Muscle Denervation Rats Rats, Wistar Social Isolation* Ultrasonics Vocalization, Animal / physiology* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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