title: The circadian clock and behavior.
abstract: Temporal organization is a fundamental feature of all living systems. Timing is essential for development, growth and differentiation and in the mature organism, it is essential to maintain normal physiology and behavior. The biological entity that permits an organism's day/night organization is the circadian system. In the following, we describe how daily or circadian activity is measured in mice, and what such activity measurements can tell us about the state of the animal.
authors.affiliation: Max-Planck-Institute for Experimental Endocrinology, Feodor-Lynen-Strasse 7, 30625 Hannover, Germany. urs.albrecht@unifr.ch
authors.forename: U
authors.initials: U
authors.lastname: Albrecht
authors.forename: H
authors.initials: H
authors.lastname: Oster
mesh_terms: D000818:Animals; D018797:Cell Cycle Proteins; D002940:Circadian Rhythm / Q000235:genetics*; D005786:Gene Expression Regulation / Q000502:physiology; D051379:Mice; D008817:Mice, Mutant Strains / Q000235:genetics*; D009687:Nuclear Proteins / Q000235:genetics; D056950:Period Circadian Proteins; D010641:Phenotype; D012333:RNA, Messenger / Q000235:genetics; D013045:Species Specificity; D013493:Suprachiasmatic Nucleus / Q000502:physiology; D014157:Transcription Factors; D014667:Vasopressins / Q000235:genetics
chemical_list: D018797:Cell Cycle Proteins; D009687:Nuclear Proteins; C539023:Per1 protein, mouse; C513312:Per2 protein, mouse; D056950:Period Circadian Proteins; D012333:RNA, Messenger; D014157:Transcription Factors; D014667:Vasopressins