Sydney - Australia's Okan Kaya likes Call of Duty: Black Ops II. In November he played the blockbuster videogame for a world-record 122 hours.
“I'm a massive fan,” he said. “I've been playing the series since the World War days and absolutely love it.”
Circumstantial evidence suggests gaming can be as addictive as gambling. In July a Diablo III fan in Taiwan collapsed and died after a 40-hour session at an internet cafe.
Australian National University psychologist Olivia Metcalf has found concrete evidence that gaming is indeed addictive.
For her research, which showed that addicted gamers had trouble focusing on other tasks, she gathered volunteers representing: