 While motor function determines expression in the techniques and language of all anthropoids, reflection determines graphism in the figurative language of the most recent anthropoids.It has been hypothesized that graphism first appeared in the form of tight curves or series of lines engraved in bone or stone.However, there has been no substantial proof to support this hypothesis, with the only comparison being the Australian tjurunga, stone or wood tablets engraved with abstract designs (spirals, straight lines, and clusters of dots) that represented objects of religious significance.