The task will take up to approximately 30 minutes.
You will have to remember a pair of colours and report one of them
as accurately as possible by clicking on a colour wheel.
Please do not participate if you have any form of colour blindness or
do not have normal or
corrected-to-normal vision (wearing glasses or contacts is fine).
During the task, you'll perform 180 trials of the same task; each trial
lasts about 3–5 seconds.
Starting the experiment will indicate that you have read the consent text below and agree to participate.
Clicking the Start Experiment button will switch your browser to full screen.
If this does not work, press F11 on Windows or
^+⌘+F (Control+Cmd+F) on a Mac to go full screen manually.
CONSENT TEXT PLACEHOLDER
Please keep your eyes at the crosshair in the middle.
Colours will come up at 2 of these 12 possible locations.
Please press space bar to continue.
Colours will briefly flash at 2 of these 12 possible locations.
Please press space bar to continue.
Then, the colours will disappear for a short (less than a second) or a
long period (several seconds).
Please press space bar to continue.
Then the triangle will point to the location that you have to report the
exact colour hue that used to be there.
Please press space bar to continue.
The colour wheel will appear and you will have to report by moving the
mouse to the colour hue you want to answer.
Then click the mouse button to continue.
Next, we will do a short comprehension check to make sure you understood
the task before proceeding.
Please press space bar to continue.
Please answer the following questions to make sure you understood the task.
1. How many colours will you need to remember on each trial?
2. How do you make your response?
3. Where should you look while the colours are displayed?
Next, the experiment will begin.
When you're ready to start, please press space bar to continue.