Background

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Use this activity to explore color aftereffects. You can look at one or two circles to adapt to. If you use two circles, you can explore what colors are complementary colors or not. If you have two complementary colors next to each other as you adapt, the aftereffects will be as though the two colors switched places.

Instructions

Full Screen Mode

To see the illustration in full screen, which is recommended, press the Full Screen button, which appears at the top of the page.

Illustration Tab

Settings

Below is a list of the ways that you can alter the illustration. The settings include the following:

Start: start the adaptation. Look at the cross in the middle of the screen. One or two circles will be presented during adaptation. The screen will return to complete white when adaptation is finished. You can also start adapyation by touching or clicking the stimulus area.
Num Adapt: how many circles to adapt to: 1 or 2?
Duration (sec): how long will adaptation last, in seconds.
Color Wheels: use the color wheels to pick colors to adapt to. The color wheels change the color of the circle in the same relative position.

Reset

Pressing this button restores the settings to their default values.

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