brain tarining software not best

brain tarining software not best

brain tarining software not best

The largest trial to date of 'brain-training' computer games suggests that people who use the software to boost their mental skills are likely to be disappointed.

The study, a collaboration between British researchers and the BBC Lab UK website, recruited viewers of the BBC science programme Bang Goes the Theory to practise a series of online tasks for a minimum of ten minutes a day, three times a week, for six weeks. In one group, the tasks focused on reasoning, planning and problem-solving abilities skills correlated with general intelligence. A second group was trained on mental functions targeted by commercial brain-training programs short-term memory, attention, visuospatial abilities and maths. A third group, the control subjects, simply used the Internet to find answers to obscure questions. A total of 11,430 volunteers aged from 18 to 60 completed the study, and although they improved on the tasks, the researchers believe that none of the groups boosted their performance on tests measuring general cognitive abilities such as memory, reasoning and learning.

It's unlikely that the study, published online in Nature this week1, will quell the brain-training debate. "I really worry about this study I think it's flawed," says Peter Snyder, a neurologist who studies ageing at Brown University's Alpert Medical School in Providence, Rhode Island. Snyder agrees that data supporting the efficacy of brain training are sparse. Although some earlier studies such as one2 funded by Posit Science, a brain-training software company in San Francisco, California showed modest effects, Snyder recently published a meta-analysis that found little benefit3.

But he says that most commercial programs are aimed at adults well over 60 who fear that their memory and mental sharpness are slipping. "You have to compare apples to apples," says Snyder. An older test group, he adds, would have a lower mean starting score and more variability in performance, leaving more room for training to cause meaningful improvement. "You may have more of an ability to see an effect if you're not trying to create a supernormal effect in a healthy person," he says.

Indeed, the subjects in this study were a self-selected group "who would have had a natural inclination to play this sort of game", says David Moore, director of the MRC Institute of Hearing Research in Nottingham, UK, and a founder of MindWeavers, a company in Oxford, UK, selling the brain-training program MindFit.

Moore and Snyder add that the training time may not have been long enough. Subjects completed an average of 24 sessions at ten minutes a session, that's just four hours of training, says Snyder. "Four hours of testing over six weeks isn't a lot to create meaningful change." Brain-training exercises such as treatments for lazy eye or some post-stroke training regimens require more time to work, says Moore.

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