Bilateral projections of neurons in the lateral geniculate nucleus and nucleus lateralis posterior to the visual cortex in the neonatal rat.
The projection from the lateral geniculate nucleus (LGN) and nucleus lateralis posterior (LP) to the visual cortex was examined in rat pups 3-7 days of age using the fluorescent tracers True Blue, Fast Blue and Nuclear Yellow. Our data provide the first evidence that (1) these projections are bilateral, (2) the ipsilateral projection from these nuclei to the visual cortex in the neonatal rat is well localized and is similar in distribution and organization to that reported by others in the adult and (3) bilaterally projecting geniculocortical cells are morphologically heterogeneous; bilaterally projecting cells in LP are morphologically homogeneous.
D000818:Animals; D000831:Animals, Newborn / Q000502:physiology*; D001931:Brain Mapping; D005456:Fluorescent Dyes; D005829:Geniculate Bodies / Q000166:cytology / Q000502:physiology*; D009474:Neurons / Q000502:physiology; D051381:Rats; D009435:Synaptic Transmission; D014793:Visual Cortex / Q000166:cytology / Q000502:physiology*; D014795:Visual Pathways / Q000502:physiology*
D005456:Fluorescent Dyes