OAP video gamers outscore youngsters
15 September 2015 Last updated at 20:44 BST
Researchers at the University of California, San Francisco have created a video game with a difference: Neuroracer.
Aimed at older players, it requires individuals to steer a car while at the same time performing other tasks.
After playing the game for 12 hours, Prof Gazzaley found pensioners had improved their performance so much they were beating 20-year-olds playing it for the first time.
He explains to BBC's Horizon why there could be health benefits as a consequence in the video above.