I fell upon an article earlier which looks at the way rock engravings, far from being simple visual representations, have a far more sensual aspect to them, in which sound and feeling is as important as vision, at least within the San of Southern Africa.  It’s very interesting, and well worth a look:

Ouzman, S. (2001) ‘Seeing is deceiving: Rock Art and the Non Visual’  World Archaeology Vol 43(2) – Archaeology and Aesthetics (october 2001).  Pp 237 – 256.