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Measuring biting behavior induced by acute stress in the rat.


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Title: Measuring biting behavior induced by acute stress in the rat.
Authors: Zeredo, Jorge Luis / Kumei, Yasuhiro / Shibazaki, Tatsunori / Yoshida, Noriaki / Toda, Kazuo
Issue Date: Aug-2009
Publisher: Psychonomic Society
Citation: Behavior Research Methods 41(3), pp.761-764; 2009
Abstract: Previous reports have indicated that biting behavior is enhanced in rats that are subject to acute stress. Several methods have been proposed for studying this phenomenon, one of which is the electromyography (EMG) of the jaw muscles. In this study, we compared total EMG activity with the EMG activity related to biting behavior, as determined by video monitoring, before and after restraint stress. Wistar albino rats (150 g) were subject to surgery for electrode placement 48 h before measurements. The EMG activity of the masseter muscle on one side was recorded for 10 min before and immediately after 30 min of restraint stress. Restraint stress increased jaw muscle EMG activity, although some of the activity was related to behaviors other than biting. Recording the EMG activity of jaw muscles is useful for measuring the stress response in rats, but careful video monitoring is needed if biting behavior is to be studied in particular.
Keywords: animal behavior / stress / electromyography / masseter muscle / rat
URI: http://hdl.handle.net/10069/22193
ISSN: 1554351X
DOI: 10.3758/BRM.41.3.761
PubMed ID: 19587189
Rights: This manuscript was accepted for publication in Behavior Research Methods on August 2009. The copyright is held by Psychonomic Society Publications. This document may not exactly correspond to the final published version. Psychonomic Society Publications disclaims any responsibility or liability for errors in this manuscript.
Type: Journal Article
Text Version: author
Appears in Collections:Articles in academic journal

Citable URI : http://hdl.handle.net/10069/22193

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