Left-right confusion is the difficulty some people have in distinguishing the difference between the directions left and right. According to research by John R. Clarke of Drexel University, it affects about 15% of the population. These people can usually normally perform daily activities such as driving according to signs and navigating according to a map, but will often take a wrong turn when told to turn left or right and may have difficulties performing actions that require precise understanding of directional commands, such as ballroom dancing.[8][9][10][11]