title: Activity is a slave to many masters.
abstract: Dopamine neurons in the midbrain have a central role in generating cycles of biological activity with periods as short as 4 hours and as long as 100 hours.
authors: Department of Biological Sciences, California State Polytechnic University Pomona, Pomona, United States, adsteele@cpp.edu.
authors: Andrew D
authors: AD
authors: Steele
authors: Department of Psychology, Simon Fraser University, Burnaby, Canada, mistlber@sfu.ca.
authors: Ralph E
authors: RE
authors: Mistlberger
mesh_terms: D000204:Activity Cycles / Q000502:physiology*; D000818:Animals; D001143:Arousal / Q000502:physiology*; D001522:Behavior, Animal; D004298:Dopamine / Q000502:physiology*
chemical_list: D004298:Dopamine
keywords: chronobiology; circadian rhythms; dopamine; dopamine transporter; mouse; neuroscience; oscillator; ultradian