text: The Facial Coding System is a 3-D computer model of the face. Eckmen, the creator of the Facing Coding System, classifies six basic emotions including, happiness, surprise, anger, disgust, fear, and saddness. Then, he associates them with characterisric movements of the facial muscles. For example, your frontalis pars lateralis muscle raises your eyebrows when you're surprised; your orbicularis oris tightens your lips to show anger.