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Sonic hedgehog (Shh)-Gli signaling controls neural progenitor cell division in the developing tectum in zebrafish
(2011)
Despite considerable progress, the mechanisms that control neural progenitor differentiation and behavior, as well as their functional integration into adult neural circuitry, are far from being understood. Given the ...
Morphology, Projection Pattern, and Neurochemical Identity of Cajal’s “Centrifugal Neurons”: The Cells of Origin of the Tectoventrogeniculate Pathway in Pigeon (Columba livia) and Chicken (Gallus gallus)
(Wiley, 2014)
The nucleus geniculatus lateralis pars ventralis (GLv) is a
prominent retinal target in all amniotes. In birds, it is in
receipt of a dense and topographically organized retinal
projection. The GLv is also the target ...
The Visual System of a Palaeognathous Bird: Visual Field, Retinal Topography and Retino-Central Connections in the Chilean Tinamou (Nothoprocta perdicaria)
(Wiley-Blackwell, 2015)
Most systematic studies of the avian visual system have focused on Neognathous species, leaving virtually unexplored the Palaeognathae, comprised of the flightless ratites and the South American tinamous. We investigated ...
“Shepherd’s crook” neurons drive and synchronize the enhancing and suppressive mechanisms of the midbrain stimulus selection network
(National Academy of Sciences, 2018)
© National Academy of Sciences. All rights reserved. The optic tectum (TeO), or superior colliculus, is a multisensory midbrain center that organizes spatially orienting responses to relevant stimuli. To define the stimulus ...
The centrifugal visual system of a palaeognathous bird, the Chilean Tinamou (Nothoprocta perdicaria)
(Wiley, 2017-08)
The avian centrifugal visual system, which projects from the brain to the retina, has been intensively studied in several Neognathous birds that have a distinct isthmo-optic nucleus (ION). However, birds of the order ...
Cloning of hif-1α and hif-2α and mRNA expression pattern during development in zebrafish
(2007)
Hypoxia-inducible factors (HIFs) regulate gene expression in response to hypoxia and in vertebrates they are known to participate in several developmental processes, including angiogenesis, vasculogenesis, heart and central ...
A specialized reciprocal connectivity suggests a link between the mechanisms by which the superior colliculus and parabigeminal nucleus produce defensive behaviors in rodents
(Nature Research, 2020)
The parabigeminal nucleus (PBG) is the mammalian homologue to the isthmic complex of other vertebrates. Optogenetic stimulation of the PBG induces freezing and escape in mice, a result thought to be caused by a PBG projection ...
Morphogenetic and Histogenetic Roles of the Temporal-Spatial Organization of Cell Proliferation in the Vertebrate Corticogenesis as Revealed by Inter-specific Analyses of the Optic Tectum Cortex Development
(Frontiers Media, 2016)
The central nervous system areas displaying the highest structural and functional complexity correspond to the so called cortices, i.e., concentric alternating neuronal and fibrous layers. Corticogenesis, i.e., the development ...
The Isthmic Nuclei Providing Parallel Feedback Connections to the Avian Tectum Have Different Neurochemical Identities: Expression of Glutamatergic and Cholinergic Markers in the Chick (Gallus gallus)
(Wiley-Blackwell, 2015)
Retinal inputs to the optic tectum (TeO) triggered by moving stimuli elicit synchronized feedback signals from two isthmic nuclei: the isthmi parvocelullaris (Ipc) and isthmi semilunaris (SLu). Both of these nuclei send ...
Two distinct populations of tectal neurons have unique connections within the retinotectorotundal pathway of the pigeon (Columba livia)
(1997)
The tectofugal pathway is a massive ascending polysynaptic pathway from the tectum to the thalamus and then to the telencephalon. In birds, the initial component of this pathway is known as the tectorotundal pathway; in ...