Mode of reinnervation in neonatally denervated lamina of the cat's lateral geniculate nucleus.
Physiological properties of relay cells were studied in the lateral geniculate nucleus (LGN) of neonatally one-eye-removed adult cats. Most of the relay cells recorded from the denervated lamina (lamina A1) were still classifiable into either Y- or X-cells, like those recorded from the non-denervated lamina (lamina A). However, receptive field centers of both Y- and X-cells in the denervated lamina were slightly over twice as large as those of the corresponding classes in the non-denervated lamina. These data indicate that reinnervated relay cells may receive excessive convergent inputs from either Y or X type retinal axons which have grown translaminarly.
D000818:Animals; D002415:Cats; D005829:Geniculate Bodies / Q000166:cytology / Q000503:physiopathology*; D009473:Neuronal Plasticity; D020221:Optic Nerve Injuries; D011930:Reaction Time / Q000502:physiology; D012160:Retina / Q000503:physiopathology*; D014793:Visual Cortex / Q000503:physiopathology; D014794:Visual Fields; D014795:Visual Pathways / Q000503:physiopathology