[originaltext] A growing body of university research suggests that gaming im

A growing body of university research suggests that gaming improves creativity, decision making and perception. The specific benefits are wide-ranging, from improved hand-eye coordination of surgeons to vision changes that boost night driving ability.
    People who played action-based video and computer games made decisions 25% faster than others without sacrificing accuracy, according to a study. Indeed, the most skilled gamers can make choices and act on them four times faster than most people, other researchers found. Moreover, skillful game players can pay attention to more than six things at once without getting confused, compared with the four that someone can normally keep in mind, said University of Rochester researchers. The studies were conducted independently of the companies that sell video and computer games.
    Electronic gameplay has its downside. Brain scans show that violent video games can alter brain function in healthy young men after just a week of play, depressing activity among regions associated with emotional control, researchers at Indiana University recently reported. Other studies have found an association between too much gaming and being overweight and prone to depression. The studies didn’t compare the benefits of gaming with such downsides.
    The violent action games that often worry parents most had the strongest beneficial effect on the brain. " These are not the games you would think are mind-enhancing," said the scientist Daphne Bavelier, who studies the effect of action games at Switzerland’s University of Geneva.
    Computer gaming has become an entertainment business of $25 billion a year since the first coin-operated commercial video games hit the market 41 years ago. In 2010, gaming companies sold 257 million video and computer games, according to figures compiled by the industry’s trade group, the Entertainment Software Association.
    Questions 16 to 18 are based on the recording you have just heard.
    16.What benefit can gaming bring according to a growing body of university research?
    17.What did the research of University of Rochester suggest?
    18.What did researchers at Indiana University say about violent videogames?