I would like to set up a style for the Stroop task, to be used as a training set, so that the user is "trained" to respond to the color of the text, not the text, such that a text-based response (e.g. to the word "red", rather than to the color green that "red" was printed in) would be followed by an error message reminding the user to respond to the color of the text. I only see error messages based on too fast or too slow responding.

thanks