Our emotional state influences our behavior and design can affect our emotional state. Tamir and Bigman found that “expectations regarding the impact of emotions on behavior can influence the actual impact of emotions on behavior. . . . excited participants were more creative than calm participants when expecting excitement to promote creativity, whereas calm participants were more creative than excited participants when expecting calmness to promote creativity. . . . how emotions shape behavior depends, in part, on how people expect emotions to shape behavior.” To induce calmness, the researchers had study participants listen to either First Thing (by Fourtet) or Tree Fingers (by Radiohead). Riding Forth the Wave (performed by Catch 22) or Dreamoz (by Jah Hannah) were played to make people feel more excited.
Maya Tamir and Yochanan Bigman. "Expectations Influence How Emotions Shape Behavior.” Emotion, in press.