Scientists say they have found the part of the brain that predicts whether a person will be selfish or an altruist.
Altruism – the tendency to help others without obvious benefit to oneself – appears to be linked to an area called the posterior superior temporal sulcus.
Using brain scans, the US investigators found this region related to a person’s real-life unselfish behaviour.
The Duke University Medical Center study on 45 volunteers is published in Nature Neuroscience.
Comment: But which is the cause and which is the effect?