The Stroop effect in psychology is a demonstration of interference. When color words such as blue, green, red, etc. are printed in various colors and someone is asked to say the color the words are printed in rather than reading the words, it is very difficult to do, at least at first. The effect is named after its discover, John Ridley Stroop, who wrote an article on it in 1935.

External link

• Demonstration and definition of the Stroop effect.