| Ultrasonic vocalization by rat pups during recovery from deep hypothermia. | |
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MedLine Citation:
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PMID: 1459345 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Vocalization in the ultrasonic range (USV) has been reported to occur in young rodents in response to isolation, novelty, handling, and cold. Heretofore these calls have been known to occur only in alert, attentive, or emotionally aroused animals. These studies describe the emission of USV by comatose 9- to 10-day-old rat pups during recovery from deep hypothermia. Calling began at 15-18 degrees C core temperature while pups were virtually unresponsive to stimulation. Experimental results describe the patterns of call production in relation to respiration, cardiac function, colonic temperature, and brown adipose tissue thermogenesis. These vocalizations were 32-42 kHz in frequency, reached peak rates of 50/min at 23 degrees C, and were eliminated by laryngeal denervation, thus resembling isolation-induced vocalizations. However, contact with their dams failed to reduce call rates until pups had warmed above 25 degrees C. Newborn and weanling pups also emitted USV in deep hypothermia, but no USV were observed in pups recovering from general anesthesia. The possible functions and evolution of this behavior are discussed. |
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Authors:
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M A Hofer; H N Shair |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Developmental psychobiology Volume: 25 ISSN: 0012-1630 ISO Abbreviation: Dev Psychobiol Publication Date: 1992 Nov |
Date Detail:
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Created Date: 1993-01-12 Completed Date: 1993-01-12 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0164074 Medline TA: Dev Psychobiol Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 511-28 Citation Subset: IM; S |
Affiliation:
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Department of Psychiatry, College of Physicians & Surgeons, Columbia University, New York, NY. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adipose Tissue, Brown
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physiology Animals Arousal / physiology* Body Temperature Regulation / physiology* Female Hypothermia, Induced Laryngeal Nerves / physiology Male Rats Rats, Wistar Social Isolation* Sound Spectrography Ultrasonics Vocalization, Animal / physiology* |
| Comments/Corrections | |
Erratum In:
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Dev Psychobiol 1992 Dec;25(8):647 |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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