Journal article
Sniffing in Infant Rats During Sleep and Wakefulness
Behavioral neuroscience, Vol.118(2), pp.267-273
04/2004
DOI: 10.1037/0735-7044.118.2.267
PMID: 15113250
Abstract
Sniffing, a behavior that enhances detection and localization of odorants, is typically assumed to require behavioral arousal. In an effort to determine whether sniffing and arousal are dissociable, dimethyl disulfide (DMDS) was presented to 8-day-old rats while respiration and behavioral state were monitored. Pups sniffed in response to the highest concentrations of DMDS, exhibiting a lower olfactory threshold when awake. Surprisingly, sniffing occurred even while pups remained asleep. Sniffing was mediated by the olfactory system, as evidenced by the abolition of sniffing when the lateral olfactory tracts were cut and the retention of rapid arousal in response to a trigeminal stimulant, acetic acid. Finally, sleeping pups presented with acetic acid awakened without sniffing. Thus, although olfactory threshold increases during sleep, sleeping does not preclude sniffing.
Details
- Title: Subtitle
- Sniffing in Infant Rats During Sleep and Wakefulness
- Creators
- Adele M. H Seelke - Department of Psychology, Program in Behavioral and Cognitive Neuroscience, University of IowaMark S Blumberg - Department of Psychology, Program in Behavioral and Cognitive Neuroscience, University of Iowa
- Resource Type
- Journal article
- Publication Details
- Behavioral neuroscience, Vol.118(2), pp.267-273
- DOI
- 10.1037/0735-7044.118.2.267
- PMID
- 15113250
- NLM abbreviation
- Behav Neurosci
- ISSN
- 0735-7044
- eISSN
- 1939-0084
- Publisher
- American Psychological Association
- Language
- English
- Date published
- 04/2004
- Academic Unit
- Psychological and Brain Sciences; Iowa Neuroscience Institute; Biology
- Record Identifier
- 9984002348202771
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