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Article: Effect of cage size on ultradian locomotor rhythms of laboratory mice

TitleEffect of cage size on ultradian locomotor rhythms of laboratory mice
Authors
KeywordsCage size
Continuous wavelet transform
Locomotion
Ultradian rhythms
Video monitoring
Issue Date1997
PublisherElsevier Inc. The Journal's web site is located at http://www.elsevier.com/locate/physbeh
Citation
Physiology And Behavior, 1997, v. 62 n. 6, p. 1253-1258 How to Cite?
AbstractThe effect of cage size on spontaneous locomotor rhythms of laboratory mice was studied under simulated light-dark (12:12) cycles. On-line image analysis of bodily displacement yielded a locomotor signal over a period of 3 days. Continuous wavelet transform was applied to the signal, and ensemble averaging of eight mice revealed in the time-frequency plot bouts of increased motor activities. Notably, there were two bouts in the dark corresponding to ultradians of periods below 5 h: a first bout at the dark onset (at 0.6-1.0 cycle/h), and a second bout during the second half of the dark period (at 0.4-0.7 cycle/h). These increases of activity were more intense and distinct when the animals were kept inside the larger cage. Furthermore, the first bout disappeared when the animals were kept in the small cage for 3 days.
Persistent Identifierhttp://hdl.handle.net/10722/81177
ISSN
2015 Impact Factor: 2.461
2015 SCImago Journal Rankings: 1.245
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorPoon, AMSen_HK
dc.contributor.authorWu, BMen_HK
dc.contributor.authorPoon, PWFen_HK
dc.contributor.authorCheung, EPWen_HK
dc.contributor.authorChan, FHYen_HK
dc.contributor.authorLam, FKen_HK
dc.date.accessioned2010-09-06T08:14:42Z-
dc.date.available2010-09-06T08:14:42Z-
dc.date.issued1997en_HK
dc.identifier.citationPhysiology And Behavior, 1997, v. 62 n. 6, p. 1253-1258en_HK
dc.identifier.issn0031-9384en_HK
dc.identifier.urihttp://hdl.handle.net/10722/81177-
dc.description.abstractThe effect of cage size on spontaneous locomotor rhythms of laboratory mice was studied under simulated light-dark (12:12) cycles. On-line image analysis of bodily displacement yielded a locomotor signal over a period of 3 days. Continuous wavelet transform was applied to the signal, and ensemble averaging of eight mice revealed in the time-frequency plot bouts of increased motor activities. Notably, there were two bouts in the dark corresponding to ultradians of periods below 5 h: a first bout at the dark onset (at 0.6-1.0 cycle/h), and a second bout during the second half of the dark period (at 0.4-0.7 cycle/h). These increases of activity were more intense and distinct when the animals were kept inside the larger cage. Furthermore, the first bout disappeared when the animals were kept in the small cage for 3 days.en_HK
dc.languageengen_HK
dc.publisherElsevier Inc. The Journal's web site is located at http://www.elsevier.com/locate/physbehen_HK
dc.relation.ispartofPhysiology and Behavioren_HK
dc.rightsPhysiology & Behavior. Copyright © Elsevier Inc.-
dc.subjectCage sizeen_HK
dc.subjectContinuous wavelet transformen_HK
dc.subjectLocomotionen_HK
dc.subjectUltradian rhythmsen_HK
dc.subjectVideo monitoringen_HK
dc.titleEffect of cage size on ultradian locomotor rhythms of laboratory miceen_HK
dc.typeArticleen_HK
dc.identifier.emailPoon, AMS: amspoon@hkucc.hku.hken_HK
dc.identifier.emailPoon, PWF: hrmypwf@hkucc.hku.hk-
dc.identifier.authorityPoon, AMS=rp00354en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/S0031-9384(97)00305-3en_HK
dc.identifier.pmid9383110-
dc.identifier.scopuseid_2-s2.0-0030697987en_HK
dc.identifier.hkuros34449en_HK
dc.identifier.hkuros36938-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0030697987&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume62en_HK
dc.identifier.issue6en_HK
dc.identifier.spage1253en_HK
dc.identifier.epage1258en_HK
dc.identifier.isiWOS:A1997YF18500009-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridPoon, AMS=7103068868en_HK
dc.identifier.scopusauthoridWu, BM=16685571700en_HK
dc.identifier.scopusauthoridPoon, PWF=24322414600en_HK
dc.identifier.scopusauthoridCheung, EPW=17833855500en_HK
dc.identifier.scopusauthoridChan, FHY=7202586429en_HK
dc.identifier.scopusauthoridLam, FK=7102075939en_HK

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