The gene that makes us once bitten, twice shy. A single mutation helps to determine whether we repeat our mistakes.
By Ewen Callaway. Most people tend to learn from their mistakes and avoid making the same blunder twice. Now research reveals a genetic mutation that helps to determine the extent to which certain people are doomed to repeat history. Drug addicts, alcoholics and compulsive gamblers are known to be more likely than other people to have this genetic mutation, which leaves them with fewer receptors of a certain type in the brain. These receptors — called D2 receptors — are activated when levels of the neurotransmitter dopamine drop. more... http://www.nature.com/news/2007/071206/full/news.2007.358.html _______________________________________________ NetBehaviour mailing list [email protected] http://www.netbehaviour.org/mailman/listinfo/netbehaviour
