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Fighting dementia with gaming

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News video: Fighting dementia with gamingA mobile game that challenges a gamer’s spatial navigation has generated the largest-ever dementia study. More than 2.4 million people have played ‘Sea Hero Quest’ since it was launched in May, generating the equivalent of more than 9,000 years’ worth of lab-based research. It has shown scientists that human spatial navigation – crucial to understanding dementia – begins declining during teenage years. “People play the game, with a little boat, they have to go from a starting point, down a river, pick up a flare gun and shoot it back to where they started. So there’s a sense of direction, where have they just come from? And we get a measure of accuracy, so someone who’s very good at that, eight out of eight questions we would ask on this, they would get them all right. But someone who’s finding it very difficult would not get them right, they’d make mistakes. And so what we’re able to see across the lifespan, with people telling us how old they are and matching that with that performance, we can see whether that performance changes with age and that’s what we find: we find that people are more accurate, the younger they are,” explains Hugo Spiers, neuroscientist at University College London. The data also revealed differences in spatial navigation abilities between genders as well as countries, with Nordic countries coming out on top. The goal was to identify the normal range of navigation skills among humans, and to then use this to develop a chart to profile people and spot dementia early through any deviance from the norm. “This tells the physicians that if they’re able to, in the future – when we’ve gone down many steps in the future – develop a diagnostic tool. It would allow someone to take part in a test, to see how good their sense of direction is, get a score out of that test and then compare it to a very large sample, 2.4 million people potentially, to say, ‘Where do they fall? Are they very good or are they actually at the lower end of their performance?’,” says Dr Spiers. Different brain areas are connected by a circuit, which we use to navigate. One particular area creates an internal map in our heads – and the game helped confirm it’s this part of the brain that deteriorates first in people with dementia according to the researchers. Getting these sorts of results from laboratory experiments using Magnetic Resonance Imaging (MRI) or Computed Tomography (CT) scanners is time consuming, limited in numbers and expensive. The information generated by people who played the game has produced a huge amount of meaningful data, according to Alzheimer’s Research UK, a charity that encouraged people to take part in the project. “The ability for tens of thousands of people to play this game actually means that we are accelerating the research into dementia. So to be able to do the research in the lab could take hundreds of years – to be able to capture the amount of data that we’re able to do using this game. So I think

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