title: The wake-sleep cycle in poikilothermic vertebrates according to data of continuous, noncontact recording of heart rate and motor activity.
mesh_terms: D000818:Animals; D001921:Brain / Q000502:physiology*; D002940:Circadian Rhythm; D004562:Electrocardiography; D004569:Electroencephalography; D005399:Fishes; D006339:Heart Rate; D009043:Motor Activity / Q000502:physiology; D011896:Rana temporaria; D012589:Sciuridae; D012894:Sleep Stages / Q000502:physiology*; D013045:Species Specificity; D014426:Turtles