Lumosity doesn't actually improve your cognitive skills

Brain training apps such as Lumosity and Elevate are supposedly useful in order to keep your cognitive skills sharp, but there's been quite a bit of doubt cast on whether they are actually useful. Now, scientists led by University of Pennsylvania psychologist Joseph Kable are chiming in. As published in The Journal of Neuroscience, the team "found no evidence that cognitive training influences neural activity during decision-making, nor did we find effects of cognitive training on measures of delay discounting or risk sensitivity." The team's interest in the issue was in regard to instant gratification. Specifically, they wanted to see whether cognitive training could change behavior, leading users to prefer delayed or less risky rewards.