Academic literature on the topic 'Neurones dorsal paired medial'

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Journal articles on the topic "Neurones dorsal paired medial"

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Keene, Alex C., Michael J. Krashes, Benjamin Leung, Jessica A. Bernard, and Scott Waddell. "Drosophila Dorsal Paired Medial Neurons Provide a General Mechanism for Memory Consolidation." Current Biology 16, no. 15 (2006): 1524–30. http://dx.doi.org/10.1016/j.cub.2006.06.022.

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Bevan, S., and M. Burrows. "Maps of the somata of efferent neurones with axons in the lateral nerves of locust abdominal ganglia." Journal of Experimental Biology 202, no. 21 (1999): 2911–23. http://dx.doi.org/10.1242/jeb.202.21.2911.

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We used the cobalt-backfilling method to map the somata of neurones with axons that project in the two paired lateral nerves of the abdominal neuromeres of the locust Schistocerca gregaria with the objective of expanding and bringing together the incomplete and scattered information on these efferent neurones. We compared somata sizes and positions, and the pathways of primary neurites, with information from previous studies on individual, or groups of, abdominal neurones and we identify many of the somata we mapped. The stained somata belong to paired motor neurones and paired neurosecretory
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Araki, I., and W. C. De Groat. "Unitary excitatory synaptic currents in preganglionic neurons mediated by two distinct groups of interneurons in neonatal rat sacral parasympathetic nucleus." Journal of Neurophysiology 76, no. 1 (1996): 215–26. http://dx.doi.org/10.1152/jn.1996.76.1.215.

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1. Excitatory postsynaptic currents (EPSCs) in parasympathetic preganglionic neurons (PGNs) were examined by the use of the whole cell patch-clamp recording technique in slice preparations of the neonatal rat lumbosacral spinal cord. Synaptic responses were evoked in PGNs by extracellular stimulation of a neighboring interneuron. 2. Stimulation of interneurons medial to the sacral parasympathetic nucleus (SPN) elicited EPSCs or inhibitory postsynaptic currents in 58 and 11%, respectively, of PGNs. Stimulation of interneurons dorsal to the SPN evoked EPSCs in 70% of PGNs. 3. EPSCs occurred at s
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Olsen, J. F., and N. Suga. "Combination-sensitive neurons in the medial geniculate body of the mustached bat: encoding of target range information." Journal of Neurophysiology 65, no. 6 (1991): 1275–96. http://dx.doi.org/10.1152/jn.1991.65.6.1275.

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1. Delay-tuned combination-sensitive neurons (FM-FM neurons) have been discovered in the dorsal and medial divisions of the medial geniculate body (MGB) of the mustached bat (Pteronotus parnellii). In this paper we present evidence for a thalamic origin for FM-FM neurons. Our examination of the response properties of FM-FM neurons indicates that the neural mechanism of delay-tuning depends on coincidence detection and involves an interaction between neural inhibition and excitation. 2. The biosonar pulse (P) and its echo (E) produced and heard by the mustached bat consist of four harmonics; ea
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Olsen, J. F., and N. Suga. "Combination-sensitive neurons in the medial geniculate body of the mustached bat: encoding of relative velocity information." Journal of Neurophysiology 65, no. 6 (1991): 1254–74. http://dx.doi.org/10.1152/jn.1991.65.6.1254.

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1. Orientation sounds (pulses) emitted by the mustached bat (Pteronotus parnellii) consist of up to four harmonics (H1-4); each harmonic contains a constant frequency (CF) component and a terminal frequency modulated (FM) component, so that there are eight components in total (CF1-4 and FM1-4). By referring the echo from a target to the emitted pulse, the mustached bat derives velocity information from Doppler shift and distance information from echo delay. In this study, the responses of single neurons in the medial geniculate body (MGB) to synthetic biosonar signals were investigated. Stimul
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Clarke, R. J., R. A. Giolli, R. H. Blanks, Y. Torigoe, and J. H. Fallon. "Neurons of the medial terminal accessory optic nucleus of the rat are poorly collateralized." Visual Neuroscience 2, no. 3 (1989): 269–73. http://dx.doi.org/10.1017/s0952523800001188.

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AbstractThe vast majority of neurons of the rat medial terminal nucleus (MTN) project to the nucleus of the optic tract (NOT), but the MTN also projects to a lesser degree upon a number of other brainstem nuclei controlling optokinetic nystagmus. Because of the diversity of targets of the MTN, it is possible that individual neurons have branched axons that project to two or more brainstem nuclei. The possibility that axons of MTN-NOT neurons collateralize to innervate other MTN targets is examined in the rat with the fluorescent, double-labeling, retrograde tracer technique. Fluoro-Gold was in
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Baleydier, Christine, and Anne Morel. "Segregated thalamocortical pathways to inferior parietal and inferotemporal cortex in macaque monkey." Visual Neuroscience 8, no. 5 (1992): 391–405. http://dx.doi.org/10.1017/s0952523800004922.

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AbstractInferior parietal and inferotemporal cortex, which process different aspects of visual information through largely segregated pathways from the visual cortex, both receive thalamic afferents from the pulvinar complex. We examined the topography of pulvinar projections to these two cortical regions by placing multiple injections of different tracers (fluorescent dyes, horseradish peroxidase) in the inferotemporal and inferior parietal cortex of macaque monkeys.The patterns of label observed after injections in inferotemporal gyrus indicate that area TEO and the ventral part of area V4 r
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Amat, Corine, Bruno Lapied, Andrew S. French, and Bernard Hue. "Na+-Dependent Neuritic Spikes Initiate Ca2+-Dependent Somatic Plateau Action Potentials in Insect Dorsal Paired Median Neurons." Journal of Neurophysiology 80, no. 5 (1998): 2718–26. http://dx.doi.org/10.1152/jn.1998.80.5.2718.

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Amat, Corine, Bruno Lapied, Andrew S. French, and Bernard Hue. Na+-dependent neuritic spikes initiate Ca2+-dependent somatic plateau action potentials in insect dorsal paired median neurons J. Neurophysiol. 80: 2718–2726, 1998. The origin of plateau action potentials was studied in short-term cultures of dorsal paired median (DPM) neurons dissociated from the terminal abdominal ganglion of the cockroach, Periplaneta americana. Spontaneous plateau action potentials were recorded by intracellular microelectrodes in cell bodies that had neurite stumps. These action potentials featured a fast init
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Ichikawa, T. "MOTION-SENSITIVE CELLS: PUTATIVE LARVAL NEURONES INCORPORATED INTO THE OPTIC LOBE OF THE ADULT SWALLOWTAIL BUTTERFLY." Journal of Experimental Biology 195, no. 1 (1994): 361–80. http://dx.doi.org/10.1242/jeb.195.1.361.

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Intracellular recordings were made from neurones with large somata situated at the anteromedial edge of the medulla of the swallowtail butterfly Papilio xuthus; the neurones were then filled with Lucifer Yellow. These cells are putative larval visual interneurones incorporated into the adult optic lobe of the butterfly. There are four classes of motion-sensitive neurones. Two have a dendritic arborization in the dorsal half of the medulla and project an axon to the medial protocerebrum or the contralateral medulla. They respond to vertical downward motion with a strong burst of action potentia
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Pushchina, Evgeniya V., Eva I. Zharikova та Anatoly A. Varaksin. "Mechanical Brain Injury Increases Cells’ Production of Cystathionine β-Synthase and Glutamine Synthetase, but Reduces Pax2 Expression in the Telencephalon of Juvenile Chum Salmon, Oncorhynchus keta". International Journal of Molecular Sciences 22, № 3 (2021): 1279. http://dx.doi.org/10.3390/ijms22031279.

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The considerable post-traumatic brain recovery in fishes makes them a useful model for studying the mechanisms that provide reparative neurogenesis, which is poorly represented in mammals. After a mechanical injury to the telencephalon in adult fish, lost neurons are actively replaced due to the proliferative activity of neuroepithelial cells and radial glia in the neurogenic periventricular zone. However, it is not enough clear which signaling mechanisms are involved in the activation of adult neural stem cells (aNSC) after the injury (reactive proliferation) and in the production of new neur
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Dissertations / Theses on the topic "Neurones dorsal paired medial"

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Turrel, Oriane. "Neuropeptides et Néprilysines : rôle dans la mémoire chez la Drosophile." Thesis, Paris 6, 2017. http://www.theses.fr/2017PA066274/document.

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Au cours de ma thèse j’ai étudié les néprilysines (Nep), des protéinases connues pour dégrader de petits neuropeptides, en particulier les peptides amyloïdes (Aβ). Lors de la maladie d’Alzheimer, les peptides Aβ s’agrègent pour former des plaques toxiques. Il a été montré que l’expression des Nep module l’effet toxique d’Aβ sur la mémoire chez les modèles murins. Néanmoins, le rôle des Nep dans la mémoire dans des conditions physiologiques reste à ce jour inconnu.La drosophile exprime 4 Nep dans le système nerveux central adulte. Nous avons analysé leur rôle dans la mémoire olfactive. Les 4 Ne
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Keene, Alex Carl. "Genetic Dissection of the Neural Circuitry Underlying Memory Stability in Drosophila: A Dissertation." eScholarship@UMMS, 2006. https://escholarship.umassmed.edu/gsbs_diss/253.

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Understanding how memory is formed requires looking beyond the genes involved to the neural circuitry and temporal aspects of memory. In this dissertation I have focused my investigation on Dorsal Paired Medial (DPM) neurons, two modulatory neurons essential for memory in Drosophila. DPM neurons highly express the amnesiac (amn) gene, which encodes for a putative pre-pro-neuropeptide. amn function in DPM neurons is required for memory. Here I provide evidence that DPM neurons are cholinergic and that acetylcholine (ACh) and AMN act as co-transmitters essential for DPM function. In order to inv
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Najas, Sales Sònia 1985. "Role of DYRK1A in the development of the cerebral cortex : Implication in Down Syndrome." Doctoral thesis, Universitat Pompeu Fabra, 2014. http://hdl.handle.net/10803/380895.

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In this work we have assessed the possible contribution of the human chromosome-21 gene DYRK1A in the developmental cortical alterations associated with Down Syndrome using the mBACTgDyrk1a mouse, which carries 3 copies of Dyrk1a, and a trisomic model of the syndrome, the Ts65Dn mouse. We show that trisomy of Dyrk1a changes the cell cycle parameters of dorsal telencephalic radial glial (RG) progenitors and the division mode of these progenitors leading to a deficit in glutamatergic neurons that persist until the adulthood. We demonstrate that Dyrk1a is the triplicated gene that causes the defi
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