In the Fall of 2006 Pixar contacted Michel Gagne to create a sequence visualizing taste for its upcoming release Ratatouille. Michel created a series of scenes to illustrate potential ideas of how the taste could be visualized in an abstract way.

See how he created these visuals with animo on his website:

http://www.gagneint.com/Final%20site/Animation/Pixar/Ratatouille.htm