FiReaNGeL commends to us a study by Penn State researchers looking at the effect of video game play on creativity. "[Subjects] were asked to play a popular video game, Dance Dance Revolution, at various levels of complexity. The students took a standard creativity test after playing. The researchers also took readings of the players' skin conductance and asked players if they were feeling either positive or negative after the game ... [T]he study appears to indicate that after playing the game, happy or sad people are most creative, while angry or relaxed people are not. The findings suggest that either high or low arousal is key to creativity. In other words, medium amounts of arousal are not conducive to creativity."