One of the variants of the D4 gene is called 7R. People who have the 7R variant tend to be novelty-seeking. They have less tolerance for monotony and pursue whatever is new or unusual. They can be impulsive, exploratory, fickle, excitable, quick-tempered, and extravagant. On the other hand, people with low novelty-seeking personalities are more likely to be reflective, rigid, loyal, stoic, slow-tempered, and frugal.
