Interspecies differences in the occurrence of theta.
D000374:Aggression; D000818:Animals; D001143:Arousal; D001522:Behavior, Animal; D005075:Biological Evolution; D002415:Cats; D004567:Electrodes, Implanted; D004569:Electroencephalography; D005106:Exploratory Behavior; D006168:Guinea Pigs; D006624:Hippocampus / Q000502:physiology; D006801:Humans; D007103:Immobilization; D008124:Locomotion; D009043:Motor Activity; D009949:Orientation; D011817:Rabbits; D051381:Rats; D012895:Sleep, REM; D013045:Species Specificity; D013788:Thalamus / Q000502:physiology