Gratings, Beats and Plaid Patterns


Examples of moving first and second order stimuli can be found here.

If you want to understand more about these moving stimuli then please read:
Derrington, A. M., Allen, H. A. & Delicato, L. S.(2004) Visual Mechanisms of Motion Perception and Analysis. Annual Review of Psychology, 55, 181-205. doi: 10.1146/annurev.psych.55.090902.141903