Study Finds Low Density of a Brain Protein Indicates Aloof Personality
From Times staff and wire reports
A low density of a brain protein called a dopamine D2 receptor is associated with a cold and aloof personality, according to Swedish scientists. Dr. Lars Farde and his colleagues at the Karolinska Institutet in Stockholm scanned the brains of 24 people and calculated the density of D2 receptors in one part of the brain.
They report in Nature that the lower the density of receptors a person had, the higher he or she tended to score in a measure of a personality trait called detachment. This trait includes a lack of closeness and warmth in relationships, and a tendency to avoid involvement with other people.
