Optic tectum
Fragile X mental retardation protein knockdown in the developing Xenopus tadpole optic tectum results in enhanced feedforward inhibition and behavioral deficits
... tadpole optic tectum is homologous to the mammalian superior col- liculus and is the main sensory processing area in the tadpole ...The optic tectum receives direct visual in- put via retinal ...
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Imaging Neuronal Activity in the Optic Tectum of Late Stage Larval Zebrafish
... adult optic tectum and described four classes of tectal neurons, differing in their sensitivity to motion, direction of motion, spontaneous activity in the dark, and whole-field ...
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NRP1 mediated Sema3A signals coordinate laminar formation in the developing chick optic tectum
... The optic tectum is the main visual center for non-mammalian ...avian optic tectum comprises 16 laminae, which are subdivided by distinct neuronal cell types (Ramón y Cajal, 1911; La Vail and ...
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Helmbrecht, Thomas (2018): Functional anatomy of a visuomotor transformation in the optic tectum of zebrafish. Dissertation, LMU München: Graduate School of Systemic Neurosciences (GSN)
... teleost optic tectum, the homologue of the mammalian superior colliculus, as a central hub executing visuomotor ...the tectum, projections from retinal ganglion cells form a map of the visual space ...
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Chick PTPσ regulates the targeting of retinal axons within the optic tectum
... Of interest here are the receptor-like protein tyrosine phos- phatases (RPTPs), a large family of proteins that are increasingly implicated in axon growth and guidance (Garrity et al., 1999; Bixby, 2000; Newsome et al., ...
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Focusing on optic tectum circuitry through the lens of genetics
... A quarter of the neurons in our survey [20,21] have cell bodies in the SPV, radially oriented dendrites that reach to the superficial, retinorecipient layers and a local axon. We call this group the periventricular ...
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Rostrocaudal polarity formation of chick optic tectum
... Int J De\' BioI 3M 281 286 (199 1) 281 Rostrocaudal polarity formation of chick optic tectum HARUKAZU NAKAMURA', NOBUE ITASAKI and TORU MATSUNO Department of Biology, Kyoto Prefectural University of M[.] ...
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Synchronizing retinal activity in both eyes disrupts binocular map development in the optic tectum
... the tectum, separated by 100 –200 mm across its surface dimensions and by 25–50 mm in depth while plotting minimum response fields and classifying the sequence of units that were ...
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The morphology of the axolotl (Ambystoma mexicanum) optic tectum
... griseum et fibrosum superficiale SFS Stratum fibrosum superficiale SZ Stratum zono.ie U llrzicate nucleus Vl D,V Ventrolateral nucleus Dorsal , Ventral VL G Ventral lateral geniculate nu[r] ...
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Electrical Activity in the Optic Tectum and Colour Change in the Minnow (Phoxinus Phoxinus L )
... showed an increase in frequency when the fish was on the black background similar to that seen at depth 4, with the increase in the region of 10 Hz Fig.. The recordings in all the region[r] ...
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Second Order Olfactory and Visual Learning in the Optic Tectum of the Goldfish
... LEARNING IN RESPONSE TO A VISUAL STIMULUS The experiments described in this section were made in order to discover whether it was possible for the goldfish to learn to associate food in [r] ...
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Predation pressure shapes brain anatomy in the wild
... Even though the function of the separate brain regions is still only partly understood and single regions sometimes have multiple functions, we can make predictions about brain region sizes based on previous findings ...
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The Central Nervous Control of Colour Change in the Minnow (Phoxinus Phoxinus L )
... The D.O.I, values, following background reversal of four fish which had had the anterior left and the posterior right parts of the optic tectum removed.. A, white to black; B, black to w[r] ...
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Essential roles of zebrafish rtn4/Nogo paralogues in embryonic development
... The initial assumption that rtn4a was the closest zebra- fish homologue of mammalian Nogo-A prompted the characterization of its developmental expression patterns [16]. However, the recent identification of a Delta ...
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Central Control of Auditory Input in the Goldfish
... These two areas, anterior optic tectum and midbrain directly below, 1 had no auditory evoked potential, 2 were critically localizable to within 0-2 mm, 3 were separated from the torus an[r] ...
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Cell recognition and pattern formation in the developing nervous system
... A,B,C Anti-TOPDV binding to dorsal, middle and ventral E5 retina, respectively; D,E,F anti-TOPDV binding to dorsal, middle and ventral E5 optic tectum, respectively; G anti-TOPDV in E18 [r] ...
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Epilepsy in kcnj10 Morphant Zebrafish Assessed with a Novel Method for Long-Term EEG Recordings
... Initially, we inserted a patch pipette into the optic tectum, as described [7,8]. However, in our hands fish movement and/or electrode placement in the brain could induce seizure-like electrical activity ...
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Changes in the retinotectal projection pattern during growth and optic nerve regeneration in the goldfish
... the optic tectum in the goldfish (Knudsen, ...the tectum, the auditory map results from the neural responses to differences in the intensity and the timing of sound at the two ...
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In situ analysis of neuronal dynamics and positional cues in the patterning of nerve connections
... Ganglion cells from the dorsal portion of the retina project optic nerve fibers to the lateral ventral portion of the optic tectum; those from the ventral tectum project to the medial do[r] ...
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Plastic changes in brain morphology in relation to learning and environmental enrichment in the guppy (Poecilia reticulata)
... relative optic tectum size in fish exposed to the spatial-learning ...relative optic tectum size but not relative telencephalon size suggests that the reliance on visual cues may have been ...
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