Periodicity in mood, affect, and instinctual behavior.
D000339:Affect; D000342:Affective Symptoms / Q000503:physiopathology; D001519:Behavior / Q000502:physiology; D001921:Brain / Q000502:physiology; D004644:Emotions; D005239:Fear; D006801:Humans; D007323:Instinct; D009042:Motivation; D018377:Neurotransmitter Agents / Q000502:physiology; D010507:Periodicity; D011889:Rage
D018377:Neurotransmitter Agents