A young visitor exuberantly hoists his shirt as he revels in the colorful environment created by artist Katharina Grosse as part of her installation titled “one floor up more highly,” at the Massachusetts Museum of Contemporary Art. The walls and floors are spray painted in neon colors, which seem to spark a sense of play in this child. Adults and children perceive art quite differently. Grosse’s work here is intended to challenge an adults conditioned way of seeing and ordering the world, but to a child, such structure is usually ignored. This particular child simply delights in the excitement of the vivid random colors that are slashed onto the walls and floor around him.