"Reaction speed" refers to how quickly someone can respond or react to a situation or stimulus. It measures how fast a person can process information and take action. Full definition
The research used a technique called the dot probe task, which is based on reaction speed. (sciencedaily.com)
These types of stages require quick reaction speed at key points in order to stay on the move much like what we expect from a 3 - D Sonic title. (gamerstemple.com)
One program focused on improving reaction speed, another on reasoning skills and the third on memory. (newscientist.com)