The work with layering images over each other actually goes back to work I was doing in 1961. The idea for the superimpositions came from cave art. Some of these paintings deal with "Perceptualism" a term I coined in 1993. This deals with altering your perception. By focusing on the pupil of an eye or the middle of concentric circles for ten seconds or more your perception starts to change and the painting starts to act as a Rorschach ink blot and you start to see things I did not put there. With longer focused observation, the work starts to turn into an apparent field of energy.