In the early days of the industry,it was more common for a single person to manage all of the roles needed to create a video game. As platforms have become more complex and powerful in the type of material they can present,larger teams have been needed to generate all of the art,programming,cinematography,and more. Entertainment Software Rating Board that oversees games released in the United States. ESRB ratings are voluntary and rated along a E,E10+,T,M,and AO . Researchers found that such enhanced abilities could be acquired by training with action games,involving challenges that switch attention between different locations,but not with games requiring concentration on single objects. A 2018 systematic review found evidence that video gaming training had positive effects on cognitive and emotional skills in the adult population,especially with young adults. A 2019 systematic review also added support for the claim that video games are beneficial to the brain,alth