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This task is a Color memory task.
Please only do 1 HIT of this task, do not repeat it.

This HIT will take approximately 20 minutes. You will have to remember a pair of color and report one of them as accurate as possible by clicking on a color wheel. Please do not participate if you have any form of color blindness or do not have normal or corrected-to-normal vision (wearing glasses or contacts is fine). During the HIT, you'll perform 108 trials of the same task; each trial lasts about 3-5 seconds.

To proceed, please go fullscreen and your screen need to be bigger than 400 pixels
Press F11 to go full screen on a Windows PC

Clicking on the button will indicate that you have read this consent document and agree to participate.

Start Experiment


Please keep your eyes at the crosshair in the middle.
Colors will come up at 2 of these 12 possible locations

Please press space bar to continue.


Colors will briefly flash at 2 of these 12 possible locations.

Please press space bar to continue.


Then, the colors will disappear for short(less than a second) or long period(seconds).

Please press space bar to continue.


Then the triangle will point to the location that you have to report the exact color hue that used to be there.

Please press space bar to continue.


The color wheel will appear and you will have to report by moving the mouse to the color hue you want to answer.

Then click mouse to continue.


Are you ready?

Please press space bar to continue.