Novelty helps to keep the brain challenged and stimulated. Exposure to novelty typically activates the dopamine pathways that are involved with reward areas in the brain. Resulting brain activity can result in new connections between concurrently active neurons. (Quartz, Steven R. PhD and Terrence J. Sejnowski PhD. Liars, Lovers, and Heroes. NY: HarperCollins Publishers Inc, 2002, p 245)