Hiring a social media manager or a salesperson? Maybe you should have the finalists’ brains scanned in an fMRI.

A larger orbital prefrontal cortex, an area of the brain associated with decision-making and cognitive processing, has been shown to correlate with greater social skills, according to a study by a team of UK researchers. Among the scientists was Robin Dunbar, who pioneered the idea that the average human is limited to a social circle of about 150 people (see Your Brain’s Twitter Limit: 150 Real Friends), a constant now known as the Dunbar number. […]