Artists generally have a better perception of colors than the average person. However, very few can discern colors quite like Concetta Antico, a San Diego-based contemporary artist. That's because this talented painter happens to be a tetrachromat - a select group of people that have the ability to distinguish 100 million nuances of color, an astounding hundred times what a normal person can observe! This means that their world is full of vivid colors that most of us will never experience.