Results 81 to 90 of about 8,639 (218)
Notch receptor expression in the adult zebrafish optic tectum.
Cross-sections at the indicated level through the mesencephalon; optic tectum area shown in the micrographs is indicated in the cross section schematic in A. Brighfield images show the expression (by ISH) of A, notch1a, B, notch1b and C, notch3 along the
Vanessa de Oliveira-Carlos (455840) +4 more
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Background During visual system development, multiple signalling pathways cooperate to specify axial polarity within the retina and optic tectum. This information is required for the topographic mapping of retinal ganglion cell axons on the tectum. Meis1
Erickson Timothy +2 more
doaj +1 more source
ABSTRACT Cranial nerves represent a notoriously complex province of the neuroanatomical landscape of the vertebrates. Here, we offer a selection of the anatomic, genetic, and developmental features of their efferent component that are often misrepresented, ignored or controversial, as a complement to more exhaustive treatments of the subject.
Margaux Sivori +2 more
wiley +1 more source
Chick PTPσ regulates the targeting of retinal axons within the optic tectum
Chick PTP (cPTP), also known as CRYP, is a receptor-like protein tyrosine phosphatase found on axons and growth cones. Putative ligands for cPTP are distributed within basement membranes and on glial end feet of the retina, optic nerve, and optic tectum,
Aricescu, AR +5 more
core
Objective: The aim of the study was to explore the effect of semi-specific antagonists and agonists of the nicotinic acetylcholine receptors on the paired-pulse facilitation and nicotinic tonic and phasic potentiation of the frog retinotectal synaptic ...
Armuntas Baginskas +2 more
doaj +1 more source
Supplementary Material for: Allometric Scaling of the Optic Tectum in Cartilaginous Fishes
In cartilaginous fishes (Chondrichthyes; sharks, skates and rays (batoids), and holocephalans), the midbrain or mesencephalon can be divided into two parts, the dorsal tectum mesencephali or optic tectum (analogous to the superior colliculus of mammals ...
Lisney T.J. (3755686) +1 more
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The efferent projections from the Wulst were studied in the little owl, Athene noctua, using anterograde migration of wheat-germ-agglutinin conjugated horseradish peroxidase (WGA-HRP). Wulst projections were distributed to telencephalic, diencephalic and
BAGNOLI, PAOLA +5 more
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SINs and SOMs: Neural microcircuits for size tuning in the zebrafish and mouse visual pathway.
In many animals, a fast and reliable circuit for discriminating between predator-sized objects and edible (prey-sized) objects is necessary for survival. How are receptive fields in visual brain areas organized to extract information about size?
Alison J. Barker +2 more
doaj +1 more source
Processing of local features in the zebrafish optic tectum [PDF]
The optic tectum is the main visual processing area in zebrafish and is involved in a variety of visually-driven behaviours. A key question is how information about the visual environment is processed and integrated in order to generate guided behaviour.
Bergmann, Katharina
core
The developing chick isthmo-optic nucleus forms a transient efferent projection to the optic tectum
The present work describes the formation of a transient efferent axonal projection from the isthmo-optic nucleus (ION) to the ipsilateral optic tectum of the chick embryo. Local application of either the carbocyanine dye DiI or rhodamine-B-isothiocyanate
Wizenmann, A., Thanos, S.
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