Dopamine makes us different from apes

Even if you do not believe, especially during rush hour on the subway, but people really have a unique set of social skills that differentiate us from other animals. A new study suggests that this may be due to the additional amount of dopamine that we have in our brains. Dopamine is a neurotransmitter, or chemical messenger in the brain that is associated with the prize center and influences our moods, memory and movement. Scientists say it probably made us more friendly and less aggressive than most primates thousands of years ago.

Although located both in humans and in animals, a team of scientists have found dramatic differences. In the tissue of human brain concentration was dramatically higher when compared to the samples from the tissues of the brains of some monkeys and other primates. According to them, this is a serious reason to assume that probably say he has given us an evolutionary advantage in the history of the species. "People are characterized by unique demographic success when you compare them with their closest neighbors and progressed thanks to social skills such as language, empathy and altruism," says one of the scientists Owen Lovejoy of Kent State University in Ohio. "Until now explain how social behavior in humans has evolved and improved individual reproductive success was very difficult," he added.