Reconstructions of corticogeniculate axons in the cat

The terminal arbors of corticofugal axons to the dorsal lateral geniculate nucleus in the cat were filled with horseradish peroxidase and then partially reconstructed through serial sections. The results demonstrate that these arbors are far more complex than was suspected from previous studies of axon segments in individual sections. These axons branch profusely and spread widely within the nucleus. Within laminae A and A1 the terminal arbor of a single axon can be more than 800 μm wide compared with retinogeniculate axons whose terminal arbors range in width from 100 to 410 μm (Sur and Sherman, ′82).

[1]  M. Ogren,et al.  The neurological organization of pathways between the dorsal lateral geniculate nucleus and visual cortex in old world and new world primates , 1978, The Journal of comparative neurology.

[2]  J. Robson.  The morphology of corticofugal axons to the dorsal lateral geniculate nucleus in the cat , 1983, The Journal of comparative neurology.

[3]  R. W. Guillery.  The laminar distribution of retinal fibers in the dorsal lateral geniculate nucleus of the cat: A new interpretation , 1970 .

[4]  M. J. Friedlander,et al.  Morphology of functionally identified neurons in lateral geniculate nucleus of the cat. , 1981, Journal of neurophysiology.

[5]  K. Sanderson,et al.  The projection of the visual field to the lateral geniculate and medial interlaminar nuclei in the cat , 1971, The Journal of comparative neurology.

[6]  C. Gilbert.  Laminar differences in receptive field properties of cells in cat primary visual cortex , 1977, The Journal of physiology.

[7]  T. L. Hickey,et al.  An autoradiographic study of retinogeniculate pathways in the cat and the fox , 1974, The Journal of comparative neurology.

[8]  R. Shapley,et al.  Spatial tuning of cells in and around lateral geniculate nucleus of the cat: X and Y relay cells and perigeniculate interneurons. , 1981, Journal of neurophysiology.

[9]  F. Clementi,et al.  Effect of denervation on the organization of the postsynaptic membrane of the electric organ ofTorpedo marmorata , 1975, Brain Research.

[10]  B. Cleland,et al.  Organization of visual inputs to interneurons of lateral geniculate nucleus of the cat. , 1977, Journal of neurophysiology.

[11]  K. Niimi,et al.  Projections of the visual cortex to the lateral geniculate and posterior thalamic nuclei in the cat , 1971, The Journal of comparative neurology.

[12]  E. V. Famiglietti,et al.  The synaptic glomerulus and the intrinsic neuron in the dorsal lateral geniculate nucleus of the cat , 1972, The Journal of comparative neurology.

[13]  T. Powell,et al.  An electron microscopic study of the mode of termination of cortico-thalamic fibres within the sensory relay nuclei of the thalamus , 1969, Proceedings of the Royal Society of London. Series B. Biological Sciences.

[14]  H. Holländer.  Autoradiographic evidence for a projection from the striate cortex to the dorsal part of the lateral geniculate nucleus in the cat. , 1972 .

[15]  R W Guillery,et al.  Patterns of fiber degeneration in the dorsal lateral geniculate nucleus of the cat following lesions in the visual cortex , 1967, The Journal of comparative neurology.

[16]  B. V. Updyke,et al.  Topographic organization of the projections from cortical areas 17, 18, and 19 onto the thalamus, pretectum and superior colliculus in the cat , 1977, The Journal of comparative neurology.

[17]  J. Szentágothai.  THE STRUCTURE OF THE SYNAPSE IN THE LATERAL GENICULATE BODY. , 1963, Acta anatomica.

[18]  B. V. Updyke.  The pattern of projection of cortical areas 17, 18, and 19 onto the laminae of the dorsal lateral geniculate nucleus in the cat , 1975 .

[19]  R W Guillery,et al.  A study of Golgi preparations from the dorsal lateral geniculate nucleus of the adult cat , 1966, The Journal of comparative neurology.

[20]  D. Ferster,et al.  The axonal arborizations of lateral geniculate neurons in the striate cortex of the cat , 1978, The Journal of comparative neurology.

[21]  E. Sybirska,et al.  Subcortical axon collaterals of principal cells in the lateral geniculate body of the cat , 1978, Brain Research.

[22]  M Sur,et al.  Retinogeniculate terminations in cats: morphological differences between X and Y cell axons. , 1982, Science.

[23]  W. C. Hall,et al.  Connections of layer VI in striate cortex of the grey squirrel (Sciurus carolinensis) , 1975, Brain Research.

[24]  R. W. Guillery,et al.  A quantitative study of synaptic interconnections in the dorsal lateral geniculate nucleus of the cat , 1969 .

[25]  C. R. Michael,et al.  Projection patterns of single physiologically characterized optic tract fibres in cat , 1980, Nature.

[26]  C. Mason,et al.  The synaptic organization of terminals traced from individual labeled retino-geniculate axons in the cat , 1979, Neuroscience.

[27]  J. Sprague,et al.  Corticofugal projections from the visual cortices to the thalamus, pretectum and superior colliculus in the cat , 1974, The Journal of comparative neurology.

[28]  C. Gilbert,et al.  The projections of cells in different layers of the cat's visual cortex , 1975, The Journal of comparative neurology.