dynamic images for temporal dithering

I am trying to test temporal dithering to increase the color depth of my monitor. I dont want to use third party software such as Psychotoolbox, MEX, or other external stuff.

Is there any way to create dynamic temporal images of short duration, like gifs, that can be ploted by MATLAB, without using infinite loops or other blocking routines? I don't want these loops to block my GUI runtime.

Does MATLAB support async programming? Is it a good idea to use it for this purpose? Any ideas?