I thought it was called Alpha Mandala

It was a short film that consisted of the following: one black frame with a white circle in the middle and one white frame with a black circle in the middle.

That's it: one frame, then the other, over and over again.

I saw it once, in 1977 or 1978, and prior to showing the film, the instructor went on a length about photo-tropic epilepsy, it was nothing to be ashamed of, blah blah blah.... The film can and will cause a full on grand mal seizure.

After the film (no one on the floor) we were asked what we saw, not knowing it was just the two frames repeated over and again... and there was a different answer for each of us present. Seems the film directly affected the alpha waves of the brain.

I have been looking for it ever since and it just ain't happening... anyone have any ideas?

Remember when we said there'd be no future? Well, this is it. -- BLANK, Reg