Adaptation to Flicker and Spatial Frequency
[quicktime width=”500″ height=”400″]http://anstislab.ucsd.edu/files/2012/11/adaptflicker.mov[/quicktime]
Run the movie & fixate the red cross. Both gratings are the same, but following adaptation to spatially uniform flicker, the upper grating looks apparently finer. Reason: Adaptation of transient pathways that are tuned to high temporal and low spatial frequency.