Testing a radical theory.
D000818:Animals; D006801:Humans; D008959:Models, Neurological; D018034:Olfactory Receptor Neurons / Q000502:physiology; D010465:Perception / Q000502:physiology*; D011582:Psychological Theory; D018035:Receptors, Odorant / Q000502:physiology*; D017603:Signal Detection, Psychological; D015398:Signal Transduction / Q000502:physiology*; D012903:Smell / Q000502:physiology*; D014732:Vibration
D018035:Receptors, Odorant