Journal article
Thermogenesis, myoclonic twitching, and ultrasonic vocalization in neonatal rats during moderate and extreme cold exposure
Behavioral neuroscience, Vol.110(2), pp.305-314
1996
DOI: 10.1037//0735-7044.110.2.305
PMID: 8731057
Abstract
Physiological and behavioral responses of 2- and 7-8-day-old rats were monitored during moderate and extreme cold exposure. During moderate cold exposure (30 degrees C < or = air temperature < or = 32.5 degrees C), pups at both ages increased heat production, maintained an elevated interscapular temperature, and maintained baseline levels of myoclonic twitching, a behavior commonly associated with active sleep. During extreme cold exposure (21 degrees C < or = air temperature < or = 25 degrees C), pups at both ages continued producing metabolic heat, but now exhibited pronounced decreases in interscapular temperature and decreased rates of myoclonic twitching. Furthermore, the 7-8-day-old pups exhibited significant increases in ultrasound production, and males vocalized more than females. These results suggest the presence of a narrow subthermoneutral zone in neonates in which nonshivering thermogenesis is regulated and sleep-related behaviors are protected.
Details
- Title: Subtitle
- Thermogenesis, myoclonic twitching, and ultrasonic vocalization in neonatal rats during moderate and extreme cold exposure
- Creators
- Mark S BlumbergMatthew A Stolba
- Resource Type
- Journal article
- Publication Details
- Behavioral neuroscience, Vol.110(2), pp.305-314
- DOI
- 10.1037//0735-7044.110.2.305
- PMID
- 8731057
- NLM abbreviation
- Behav Neurosci
- ISSN
- 0735-7044
- eISSN
- 1939-0084
- Language
- English
- Date published
- 1996
- Academic Unit
- Psychological and Brain Sciences; Iowa Neuroscience Institute; Biology
- Record Identifier
- 9984002436602771
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