Giggling Robot Becomes One of the Kids

* 20:00 05 November 2007
* NewScientist.com news service
* Mason Inman

Computers might not be clever enough to trick adults into thinking they are intelligent yet, but a new study shows that a giggling robot is sophisticated enough to get toddlers to treat it as a peer.

An experiment led by Javier Movellan at the University of California San Diego, US, is the first long-term study of interaction between toddlers and robots.

QRIO stayed in the middle of a classroom of a dozen toddlers aged between 18 months and two years, using its sensors to avoid bumping the kids or the walls. It was initially programmed to giggle when the kids touched its head, to occasionally sit down, and to lie down when its batteries died. A human operator could also make the robot turn its gaze towards a child or wave as they went away. "We expected that after a few hours, the magic was going to fade," Movellan says. "That's what has been found with earlier robots." But, in fact, the kids warmed to the robot over several weeks, eventually interacting with QRIO in much the same way they did with other toddlers. These interactions increased in quality over several months.

Eventually, the children seemed to care about the robot's well being. They helped it up when it fell, and played "care-taking" games with it. When the researchers programmed QRIO to spend all its time dancing, the kids quickly lost interest. When the robot went back to its old self, the kids again treated it like a peer again.

Movellan says that a robot like this might eventually be useful as a classroom assistant. "You can think of it as an appliance," he says. "We need to find the things that the robots are better at, and leave to humans the things humans are better at," Movellan says.

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