How to create a Stroop (conflicting condition) simulation?

Here is the initial code:

clear

close all

nTrials=10;

blue=imread('blue.png');

%use this line only on desktop MATLAB %comment out or delete for Online or Mobile f=figure('WindowStyle','docked');

%loop

for i=1:nTrials

clc %clear console

%word used on this trial

word=blue;

%change its color: remember, R, G, B word=255-word;

word(:,:,3)=0;

word=255-word;

%show the word

imshow(word)

%collect input

input('What color?','s');

end

%we're done!

close all

and we're supposed to use red.png,magenta.png,cyan.png,green.png, and set word to randi(5,1) so that the output is randomized.

[Mahesh Taparia]

Hi

Its not clear what you want to do exactly. Can you explain once,?