Background

This brings us to the corollary discharge theory, an important concept in understanding how our visual system detects and tracks motion. The corollary discharge theory states that the feedback we get from our eye muscles as we mover our eyesis important to the perception of motion. When we move our eyes, a command signal must be sent from the brain to the muscles that control eye movements. Corollary discharge theory states that, in addition to the muscles of the eye, this signal will be sent to areas of the brain responsible for motion detection. This signal, or corollary discharge, provides the brain with information about eye motion that can be taken into account in determining the actual motion of object or the world as a whole.

In this illustration, you can try several situations around the eye movements of saccades to see how corollary discharges work.

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

On the Illustration tab, you can adjust the parameters and start a simulation of dark adaptation.

Settings

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

Back : move to the previous step in the activity.
Next: Move to the next step in the activity.
Touch or click the photograph: Same as the Next button.

Reset

Pressing this button restores the settings to their default values.