stroop effect

is when, for example, one is prone to error when the name of a color is printed in a color that is not denoted by the name.

In psychology, the Stroop effect is a demonstration of interference in the reaction time of a task. When the name of a color (e.g., 'blue', 'green', or 'red') is printed in a color that is not denoted by the name (e.g., the word 'red' printed in blue ink instead of red ink), naming the color of the word takes longer and is more prone to errors than when the color of the ink matches the name of the color. (wikipedia)

stroop effect, n.Definitions

stroop effect