My understanding from the paper is there is no difference between 4, 8, 12, and 40Hz frequencies on the neurobiologcial effects, but I found the 8Hz a bit less comfortable than the 12, so I uploaded both.

Do these need to be full screen with your face close to the screen to fill my field of vision, or would it work just as well watching it in a smaller window, on an iPad or even on a phone?