Postnatal Development of the Cats Visual Pathways
During postnatal life, there is a tremendous increase in both the weight and the volume of the brain. This increase cannot be attributed to the addition of new neurons, since mitosis of neurons is essentially completed by birth. Instead, this is due to the conjoint proliferation and elaboration of dendritic arbors and synaptic connections between neurons; this leads to enormous growth of the synaptic neuropil. The question that will be addressed here is the extent to which the development of these connections can be modified by the environment or, conversely, the extent to which these connections can develop normally in spite of experimental alterations to the normal sensory environment.
KeywordsReceptive Field Retinal Ganglion Cell Superior Colliculus Lateral Geniculate Nucleus Striate Cortex
Unable to display preview. Download preview PDF.
- Enroth-Cugell, C. and J.G. Robson, 1966, The contrast sensitivity of retinal ganglion cells of the cat, J. Physiol (London), 187:517.Google Scholar
- Friedlander, M.J., K.A.C. Martin, and C. Vahle-Hinz, 1985, The structure of the terminal arborizations of physiologically identified retinal ganglion cell Y axons in the kitten, J. Physiol (London), 359:293.Google Scholar
- Hoffman, K.-P., 1973, Conduction velocity in pathways from retina to superior colliculus in the cat: a correlation with receptive field properties, J. Neurophysiol., 36:409.Google Scholar
- Hoffman, K.-P., and S.M. Sherman, 1974, Effects of early monocular deprivation on visual input to cat superior colliculus, J. Neurophysiol., 37:1267.Google Scholar
- Hoffman, K.-P., and S.M. Sherman, 1975, Effect of early binocular deprivation on visual input to cat superior colliculus, J. Neurophysiol., 38:1049.Google Scholar
- Hubel, D.H., and T.N. Wiesel, 1962, Receptive fields, binocular interaction, and functional architecture in the cat’s visual cortex, J. Physiol (London), 160:106.Google Scholar
- Hubel, D.H. and T.N. Wiesel, 1970, The period of susceptibility to the physiological effects of unilateral eye closure in kittens, J. Physiol (London), 206:419.Google Scholar
- Raczkowski, D., L.R. Stanford, and S.M. Sherman, 1982, Binocular lid suture causes the development of abnormal structure/function relationships among lateral geniculate neurons of the cat, Soc. Neurosci. Abst., 8:816.Google Scholar
- Sherman, S.M., 1985a, Functional organization of the W-, X-, and Y-cell pathways: a review and hypothesis, in: “Progress in Psychobiology and Physiological Psychology,” Vol. 11, Sprague, J.M., and Epstein, A.N., eds., Academic Press, New York, p. 233.Google Scholar
- Wickeigren, B.G., and P. Sterling, 1969a, Influence of visual cortex on receptive fields in the superior colliculus of the cat, J. Neurophysiol., 32:16.Google Scholar