Roger Sperry: pioneer of neuronal specificity.

This essay looks at the historical significance of two APS classic papers that are freely available online: Sperry RW. Optic nerve regeneration with return of vision in anurans. J Neurophysiol 7: 57-69, 1944 (http://jn.physiology.org/cgi/reprint/7/1/57). Sperry RW. Restoration of vision after crossing of optic nerves and after contralateral transplantation of eye. J Neurophysiol 8: 15-28, 1945 (http://jn.physiology.org/cgi/reprint/8/1/15).