 The idea that even if the animal were conscious nothing would be added to the production of behavior, even in animals of the human type, was first voiced by La Mettrie (1745), and then by Cabanis (1802), and was further explicated by Hodgson (1870) and Huxley (1874).Huxley (1874) likened mental phenomena to the whistle on a steam locomotive.However, epiphenomenalism flourished primarily as it found a niche among methodological or scientific behaviorism.