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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 35 for “"tectum"”.
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Electrophysiology of Goldfish Optic Tectum
Made available in DSpace on 2014-12-11T22:22:14Z (GMT). No. of bitstreams: 1 7207021.pdf: 8261318 bytes, checksum: 68a2867a6feba44bd71b0635a8b92a16 (MD5) Previous issue date: 1971
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Inhibition in the Frog Optic Tectum
Made available in DSpace on 2014-12-09T18:53:07Z (GMT). No. of bitstreams: 1 7013504.pdf: 3743279 bytes, checksum: 50959a6eb676a9ac4d199087c38df777 (MD5) Previous issue date: 1969
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Altered retinal connections following partial tectum lesions in neonate hamsters.
Thesis: M.S., Massachusetts Institute of Technology, Department of Psychology, 1973
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Functional Organization of the Tectum of the Tiger Salamander (Ambystoma Tigrinum)
Made available in DSpace on 2015-05-12T21:44:52Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 7013330.PDF: 4945393 bytes, checksum: e96276ef324b1ef7b9814e8c0dfd1999 (MD5) Previous issue date: 1969
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Analysis of Zebrafish Optic Tectum Visual Processing Before and After Optic Nerve Crush
… which then sends information to the optic tectum, the first visual brain center in lower vertebrates, for further processing. There were two main goals of this study. The first goal was to obtain tectal evoked responses (TER) from adult zebrafish and to compare them to previous …
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Spectral Sensitivity of the Goldfish ERG and Optic Tectum Before and After Optic Nerve Damage
… re-establishes functional properties within the tectum after approximately 60-dpc.
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Studies on the mode of CRF action in the optic tectum of the African Clawed Frog, Xenopus laevis
… Previous work in our lab showed that optic tectum (OT), the homolog of superior colliculus in non-mammalian vertebrates, contributes to decision making on predator avoidance/prey capture tradeoffs. The neuropeptide corticotropin releasing factor (CRF) modulates discrete aspects of prey …
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The mechanical regulation of Eph/ephrin signalling in the developing Xenopus brain
… in the visual area of the brain, the optic tectum. However, despite immense progress in our understanding of Eph/ephrin signalling in neural development, discrepancies between in vitro and in vivo work remain. As axon pathfinding is regulated by chemical and mechanical signals, and the …
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The tectal-isthmic loop of the chicken (Gallus gallus) in a slice preparation : electrophysiology of its elements
… midbrain is the tectal-isthmic loop. The optic tectum (superior colliculus in mammals) is a multimodal structure and it is the primary visual processing area in the mesencephalon of non-mammals. The isthmic system (nucleus parabigeminalis in mammals) is a complex of midbrain nuclei being …
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Die Verteilung des cellular retinoic acid binding protein-I (CRABP-I) und der Retinoidrezeptoren im optischen Tektum während der Entwicklung des Haushuhns Gallus gallus
… receptors and binding proteins in the optic tectum, which in birds is the direct target of most retinofugal axons. I investigated the spatial and temporal distribution of the cellular retinoic acid binding protein-I (CRABP) in the chick midbrain. While the precise role of CRABP-I is still …
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Information processing in a midbrain visual pathway
… We investigated a midbrain visual pathway: optic tectum and its isthmic nucleus) that is motion sensitive and is thought as part of attentional system. We determined the physiological properties of individual neurons as well as their synaptic connections with intracellular recordings. We …
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Mechanisms of Feedback in the Visual System
… direct topographic feedback to the optic tectum, a nucleus that receives the vast majority of retinal output. The optic tectum and nucleus isthmi of the amphibian are homologous structures to the superior colliculus and parabigeminal nucleus in mammals, respectively. We formulated a novel …
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Characterizing complex time-series from the scaling of prediction error
… chaotic system and physical data from the optic tectum of an attentive pigeon exhibiting the important phenomena of nonstationary neuronal oscillations in response to visual stimuli.
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Axonal Transport of Glycoproteins and Glycolipids in the Goldfish Optic System
… in the optic nerve and optic tract to the optic tectum, where the optic fibers terminate. For instance, when labeled amino acids are injected into the goldfish eye, labeled proteins synthesized in the retinal ganglion cells are axonally transported in the optic fibers. Two main waves of protein …
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Quantitative Studies of the Mesencephalic Nucleus of the Trigeminus
… the trigeminus is a group of cells found, in the tectum of the mesencephalon and extends from the level of the posterior commissure to the level of the chief motor nucleus of the trigeminus. This investigation was a study of the responses of the cells in the mesencephalic nucleus of the cat to …
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Exploring Novel, Hard, Acoustically Absorbent, Materials
… against two common surface treatment materials, tectum and gypsum wall board.
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Conserved Role of EGFR Signaling in Apoptotic Cell Recognition and Processing Across Different Phagocytes
… neurons, and corpse clearance in the optic tectum. An ectopic source of EGF serves as an attractive cue that promotes microglial recruitment. Our findings suggest that EGFR signaling controls an evolutionarily conserved efferocytosis module that coordinates the recognition and processing of …
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Imagining the Voltage of Neurons Distributed Across Entire Brains of Larval Zebrafish
… which mapped onto locations throughout the optic tectum, as well as during stimulus-independent bursts, which mapped onto locations in the cerebellum and medulla. Whole-brain voltage imaging may open up frontiers in the fundamental operation of neural systems.
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Einfluss frühembryonaler Manipulation der Augenanlage auf das Verhalten und auf Positionsmarker im optischen Tektum des Haushuhns
… expression pattern of positional marker in the tectum opticum (TO) by complementary connecting proteins. The expression of ephrin A2/A5 was quantified in normal animals an those with one or two excised eye vesicles. Molecules were expressed in a gradient in a time frame between E9 and E15 in the …
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Mechanism of Lmx1b-regulated Limb Dorsalization
… neurons, and reduced cerebellum and tectum formation. The developmental mechanisms utilized by Lmx1b remain largely unknown; to investigate downstream targets, we have used the limb as a model because of its accessibility and striking Lmx1b KO phenotype. To identify candidate genes, …
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