imitation pollocks cognitive neuroscientists shown pollock 's fractals induce stress reduction observers computer generated fractals nature 's fractals decalcomania technique used artists max ernst produce fractal like patterns involves pressing paint two surfaces pulling apart cyberneticist ron eglash suggested fractal geometry mathematics prevalent african art games divination trade architecture circular houses appear circles circles rectangular houses rectangles rectangles scaling patterns also found african textiles sculpture even cornrow hairstyles ref name african art ref
Formal science Mathematics Applied mathematics Dynamical systems Fractal geometry