The researcher then instructs the audience watching the video to count only the number of passes between the white-shirted students in a one-minute time frame.
Their best-known experiment involved asking viewers to watch a brief video of people passing basketballs and to count the total number of times the players wearing white passed the ball.
Bush won the White House after an unprecedented post-election battle in Florida, where he and rival Al Gore clashed over the count of thousands of disputed presidential ballots.