| Dynamic Correlation between Whisking and Breathing Rhythms in Mice. | |
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MedLine Citation:
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PMID: 22302807 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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Sniffing, a high-frequency, highly rhythmic inhalation and exhalation of air through the nose, plays an important role in rodent olfaction. Similarly, whisking, the active rhythmic movement of whiskers, plays an important role in rodent tactile sensation. Rodents whisk and sniff during exploratory behavior to sample odorants and surfaces. Whisking is thought to be coordinated with sniffing and normal respiratory behavior, but the precise temporal relationships between these movements are not known. Here, using direct measurements of whisking and respiratory movements, we examined the strength and temporal dynamics of the correlation between large-amplitude whisker movements and respiratory rhythm in mice. Whisking movements were detected using an optical sensor, and respiration was monitored with a thermistor placed close to the nostril. Our measurements revealed that breathing and whisking movements were significantly correlated only when the whisking rhythm was <5 Hz. Only a fraction (∼13%) of all large-amplitude whisker movements occurred during episodes of high-frequency (>5 Hz) respiration typically associated with sniffing. Our results show that that the rhythms of respiratory and whisking movements are correlated only during low-frequency whisking and respiration. High-frequency whisking and sniffing behaviors are not correlated. We conclude that whisking and respiratory rhythms are generated by independent pattern-generating mechanisms. |
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Authors:
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Ying Cao; Snigdha Roy; Robert N S Sachdev; Detlef H Heck |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: The Journal of neuroscience : the official journal of the Society for Neuroscience Volume: 32 ISSN: 1529-2401 ISO Abbreviation: J. Neurosci. Publication Date: 2012 Feb |
Date Detail:
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Created Date: 2012-02-03 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8102140 Medline TA: J Neurosci Country: United States |
Other Details:
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Languages: eng Pagination: 1653-9 Citation Subset: IM |
Affiliation:
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Department Anatomy and Neurobiology, University of Tennessee Health Science Center, Memphis, Tennessee 38163, and Department of Neurobiology, Yale University School of Medicine, New Haven Connecticut 06520. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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