By Emma Young

You scrape off the panels on a lottery scratch card… and you’re a winner! Brain imaging would show a burst of activity in a region called the nucleus accumbens, in the ventral striatum, a region known to code the impact of reward-related stimuli, such as getting money. But how the brain handles so-called vicarious joy — the type you might feel if you scraped winning panels from a relative’s scratch card, or even a stranger’s — is not well understood. Now a new study, published in Cognitive, Affective & Behavioural Neuroscience, shows that while there are similarities, there are also some important differences. Notably, the participants’ brains responded differently when they won money for their mother versus their father.