The Face of Disgust

Disgust is usually associated with things that are offensive, but not in the same way when something angers an individual. It usually arises when something is unclean, inedible, or infectious. There are many levels to disgust, ranging from physical to moral. Primarily, disgust is experienced physically by taste, and secondarily by smell, touch, and vision. It is also associated with a decrease in heart rate. There is a difference between physical and moral disgust, in that physical disgust is more universally grounded than moral disgust.

The facial expression for disgust, be it physical or moral, is characterized by a raising of the upper lip and a wrinkling of the nose.