Selfishness is like a weed that can take root in your TPJ

Neural gardening may fix an egotistical brain.

Several research groups, each working independently, have localized the personality trait of selfishness to an area of the brain between the temporal lobe (an area involved in auditory perception) and the parietal lobe (an area that integrates information from multiple brain regions). The area’s known as the temporoparietal junction (TPJ).

Two groups of …