2013年醫學考博英語完型填空

2013年醫博英語完型

[size=+0]Video game players may get an unexpected benefit from blowing away bad guys—better vision. Playing “action” video games improves a visual ability *****crucial for tasks like reading and driving at night, a new study says.

[size=+0]The ability, called contrast sensitivity function, allows people to discern even subtle changes *****in shades of gray against a uniformly colored backdrop. It’s also one of the first visual aptitudes to fade with age.