Studies (by Chiao and Adams) suggest that prejudice itself has a strong neurological basis. The brain has preferences for its in-groups and tends to discriminate against out-group members. At the same time, if the cultural neuroscientists are right, such reactions can also be unlearned in time. With exposure to other cultures, perhaps, the brain can absorb different ways of perceiving and responding to the world. At the very least, being aware of how deep-seated one’s perceptions are can help people to recognize, and hopefully to overcome, some of their natural prejudices. (Blanding, Michael. The Brain in the World – A Burgeoning Science Explores the Deep Imprint of Culture.)