_ Unsolved mystery of vision Preparation for this class Read … Masland, R.H. and Martin, P.R., 2007. The unsolved mystery of vision. Current Biology, 17(15), pp.R577-R582. Summary Response Further reading Masland, R.H., 2001. Neuronal diversity in the retina. Current opinion in neurobiology, 11(4), pp.431-436. Hendry, S.H. and Calkins, D.J., 1998. Neuronal chemistry and functional organization in the primate visual system. Trends in neurosciences, 21(8), pp.344-349.