The Stroop Effect is a term named after psychologist John Ridley Stroop. He was not the person who made the discovery about brain interference, however the little reading test you see below he designed in 1930 was a prime example of the theory.
As quickly as so can say aloud the color of the word.
Most people have a hard time with task, because once you learn to read, it is not something you “unlearn”. His little experiment led to a lot of later research about how what we know to be correct can interfere with new information that may make what we know seem incorrect!
There are many fun little quizzes and tests on line that seem to make the point that the Stroop Effect is alive and well and still something researchers are working on.
In fact, if this is something that you find interesting this little video is kind of fun. I hope you found this fun and interesting.