MedTech Boston: What if brain training technology could be noninvasive, clinically effective and engaging? That’s the question Eddie Martucci and Eric Elenko asked themselves in 2011. Both men had an interest in the brain – in modulating the central nervous system, to be exact. But all the existing options for cognitive improvement seemed to be invasive procedures or talk therapy. So in an effort to help people train their brains in a new way, Martucci and Elenko decided to look toward the entertainment world.