The Stroop test involves three trials. In the WORD trial, the subject reads words of color names (e.g., red, blue) printed in black ink. In the COLOR trial, the subject identifies colors (e.g., rectangles printed in red or blue). Finally, in the COLOR-WORD response inhibition trial, the subject must name the color in which a word is presented, while ignoring the printed word. Thus, incongruence between the word's color and identity (e.g., the word "blue" presented in red) requires inhibition and response selection.
The Stroop test involves three trials. In the WORD trial, the subject reads words of color names (e.g., red, blue) printed in black ink. In the COLOR trial, the subject identifies colors (e.g., rectangles printed in red or blue). Finally, in the COLOR-WORD response inhibition trial, the subject must name the color in which a word is presented, while ignoring the printed word. Thus, incongruence between the word's color and identity (e.g., the word "blue" presented in red) requires inhibition and response selection.