Get ready to remember the hue of a brief central flash. After each delay you'll match the color using an on-screen wheel.
Use a familiar object to match the on-screen shape. This converts pixels to millimetres and degrees of visual angle.
Calibration required before continuing.
You can return to this screen at any time from the experiment controls.
Calibrate your screen before running trials.
Wheel stays up until a tap/click on the ring. If you click outside, a soft error tone plays.
CSV/JSON enable when at least one trial is complete.