Academic literature on the topic 'Noyaux médians du thalamus'
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Journal articles on the topic "Noyaux médians du thalamus"
Rousseau, P. F., S. Boukezzi, A. Cancel, M. Comte, E. Guedj, E. Fakra, P. Clervoy, and S. Khalfa. "Conditionnement et extinction à la peur dans l’état de stress post-traumatique, étude des mécanismes centraux en IRM fonctionnelle." European Psychiatry 28, S2 (November 2013): 28–29. http://dx.doi.org/10.1016/j.eurpsy.2013.09.070.
Full textGuédon, Alexis, Jean-Baptiste Thiebaut, Sandro Benichi, Jacqueline Mikol, Bernard Moxham, and Odile Plaisant. "Dejerine-Roussy syndrome." Neurology 93, no. 14 (September 30, 2019): 624–29. http://dx.doi.org/10.1212/wnl.0000000000008209.
Full textAbou Rachid, S., E. Nigi, A. Shiba, and V. Zhukova. "Following Neuropathic Pain Route: Glial Alteration in the Thalamus." Douleur et Analgésie 32, no. 4 (December 2019): 221–23. http://dx.doi.org/10.3166/dea-2020-0082.
Full textLemaire, J. J., V. Mendes-Martins, L. Sakka, F. Vassal, F. Caire, J. Coste, T. Khalil, and J. Chazal. "Étude anatomique du thalamus en IRM à 4,7 Tesla et apport pour la segmentation manuelle des noyaux intra-thalamiques en chirurgie stéréotaxique." Neurochirurgie 53, no. 5 (November 2007): 419. http://dx.doi.org/10.1016/j.neuchi.2007.09.018.
Full textDissertations / Theses on the topic "Noyaux médians du thalamus"
Proulx, Éliane. "Network interactions of medial prefrontal cortex, hippocampus and reuniens nucleus of the midline thalamus." Master's thesis, Université Laval, 2008. http://hdl.handle.net/20.500.11794/20694.
Full textQuet, Étienne. "Noyaux réuniens et rhomboïde du thalamus et persistance d'un souvenir chez le rat." Thesis, Strasbourg, 2019. http://www.theses.fr/2019STRAJ008/document.
Full textNeuroanatomical and electrophysiological data place the thalamic Reuniens and Rhomboid nuclei as a key relay between the hippocampus (HP) and the medial prefrontal cortex (mPFC), two brain structures essential for memory. As such, the ReRh nuclei are thought to be involved in HP-mPFC interactions, supporting consolidation processes, and thus memory persistence. Using excitotoxic lesion, chemogenetic inactivation and cellular imaging approaches in various behavioral paradigms, we assessed the implication of the ReRh nuclei in memory processes, particularly consolidation. Our results show that the ReRh nuclei are necessary for offline consolidation of contextual fear memory in rats. A similar conclusion has been drawn from a previous study taxing spatial memory, another HP-dependent type of memory. Thus, the present data show that the necessity of the ventral midline thalamus to systems-level consolidation is not limited to a particular type of memory but could be more general
Gressier, Amélie. "Le rôle des noyaux reuniens et rhomboïde de la ligne médiane du thalamus ventral dans la consolidation d’un souvenir spatial chez le rat : approches comportementales et moléculaires." Thesis, Strasbourg, 2018. http://www.theses.fr/2018STRAJ010.
Full textMemorization relies on a dialogue between the hippocampus and the medial prefrontal cortex (mPFC). This dialog takes place progressively after the encoding of an event. Given their connectivity, the thalamic nuclei named reuniens and rhomboid (ReRh) may modulate the functional loop between these two structures. Indeed, a lesion of these nuclei impairs the persistence of a spatial memory. The mechanisms underlying this process are still unknown. Therefore, we analyzed the molecular mechanisms underlying spatial memory consolidation within the hippocampus and the mPFC, and the consequences of a lesion of the ReRh nuclei. After a stereotaxic lesion of the ReRh nuclei, rats were subjected to three days of a spatial training in the Morris water maze. We then performed a RNA sequencing of the dorsal and ventral hippocampus (CA1 regions), RT-qPCR analysis of the mPCF, and a quantification of the expression of c-fos in these two structures. Results show that ReRh nuclei lesion impairs the transcriptional and translational mechanisms within the hippocampus and the mPFC as soon as after three days of a spatial learning. These alterations could lead to the retrieval deficit observed after a long post-acquisition delay
Sidibé, Mamadou. "Intégration des noyaux centre médian et parafasciculaire du thalamus dans la circuiterie fonctionnelle des ganglions de la base chez le singe écureuil, Saimiri sciureus." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0015/NQ48988.pdf.
Full textPoulin, Anne-Marie. "Rôle du thalamus médian dorsal dans la régulation de l'axe hypophyso-cortico-surrénalien et le comportement alimentaire." Thesis, Université Laval, 2008. http://www.theses.ulaval.ca/2008/25474/25474.pdf.
Full textKlein, Marie-Muguet. "Rôle des noyaux réuniens (Re) et rhomboïde (Rh) du thalamus dans la plasticité structurale associée à la persistance d’un souvenir spatial chez le rat." Thesis, Strasbourg, 2018. http://www.theses.fr/2018STRAJ089.
Full textThe standard model of systemic consolidation posits that information is initially encoded in the hippocampo-neocortical network, the memory trace being first created in the sole hippocampus (HIP). Over time, the trace is progressively transferred to modules of the medial prefrontal cortex (mPFC), particularly to the anterior cingulate cortex (ACC). Following lesions of the thalamic reuniens and rhomboid nuclei (ReRh), which are reciprocally connected with both the Hipp and mPFC, a spatial memory forms normally but does not persist (Loureiro et al 2012). Therefore, we assessed the impact of ReRh lesions on structural plasticity underlying spatial memory persistence. Male Long-Evans rats subjected to NMDA lesions of the ReRh nuclei were trained in the Morris Water Maze and tested for retrieval of recent (5 days) or remote (25 days) memory. Structural plasticity was assessed on Golgi-stained material in the HIP and CPFm. ReRh lesions had no effect on learning and recent memory, but altered remote memory. In the HIP (CA1) of sham-operated rats, the spine number was increased at both 5 and 25 days post-acquisition vs baseline. After ReRh lesion, the increase did not persist from 5 to 25 days. In the mPFC (ACC) of sham-operated rats, the spine number was increased only at 25 days vs baseline, a modification not observed in ReRh lesioned rats. Thus, following lesion of ReRh nuclei, structural plasticity underlying remote spatial memory formation does not operate correctly in the mPFC and Hip, pointing to a crucial role of ReRh in memory persistence
Ali, Mohamad. "Effet de l'enrichissement physique et social sur l'établissement d'un souvenir spatial à long terme après lésion des noyaux reuniens et rhomboïde du thalamus chez le rat." Thesis, Strasbourg, 2015. http://www.theses.fr/2015STRAJ054/document.
Full textRecent studies have shown the key role of the ventral midline thalamus (Reuniens and Rhomboid nuclei; ReRh) in spatial memory persistence in rats, which requires a hippocampo- prefrontal dialogue for consolidation at the systems-level. As enriched environment (EE) promotes the recovery of declarative-like memories after diencephalic (anterior thalamus) lesion, and enhances neuronal plasticity, we tested its impact on the effects of the ReRh lesion upon the consolidation/retrieval of a remote spatial memory in a Morris water maze (i.e. 25 post-acquisition days). For this purpose, we exposed rats for 40 days to an enriched environment beginning 2 weeks after fiber-sparing excitotoxic thalamic lesions. In addition, the expression of the immediate early gene, c-fos, was mapped by immunohistochemistry as a marker of functional activity in the dorsal hippocampus, the median prefrontal cortex (mPFC), the intralaminar thalamic nuclei and the amygdala. Enriched housing allows the recovery of spatial memory persistence capacities in ReRh rats, with additional beneficial effects on anxiety and habituation to a novel environment. Immunohistochemistry of the Fos protein showed a higher recruitment of the mPFC, concomitant with memory capacities recovery in enriched ReRh rats, while in standard ReRh rats, Fos expression in the mPFC was significantly decreased together with the alteration of memory performance. The lesion-induced amygdala hyperactivity in basal and memory conditions was significantly attenuated in the ReRh enriched group. We suggested that amygdala might be involved in the effect of ReRh lesion on memory persistence, and also in the functional recovery associated with the restoration of the mPFC activity during remote memory retrieval in enriched ReRh rats
Alaoui, Bouarraqui Fouad. "Amnésies diencéphaliques : dissociation fonctionnelle entre noyaux mamillaires et noyaux dorso-médians thalamiques." Bordeaux 1, 1993. http://www.theses.fr/1993BOR10571.
Full textCholvin, Thibault. "Rôle d'un circuit hippocampo-cortico-thalamique dans les processus de mémoire spatiale chez le rat." Thesis, Strasbourg, 2014. http://www.theses.fr/2014STRAJ044/document.
Full textThis thesis aimed to investigate the role of a circuit encompassing the hippocampus (Hip), the medial prefrontal cortex (mPFC) and the reuniens and rhomboid nuclei (ReRh) of the thalamus in cognitive processes underlying spatial memory in rats. We first showed that ReRh nuclei may be involved in systemic consolidation, a mechanism necessary for memory persistence and requiring hippocampal-cortical interactions. We confirmed these findings in a second study showing that mPFC neuronal activity during recall of a remote spatial memory depends on ReRh thalamic nuclei. We also showed the involvement of the ReRh nuclei in a mnemonic task requiring the use of both spatial information (dependent on the Hip) and behavioral flexibility (involving the mPFC). Finally, we found a role of the mPFC in the recall of recent spatial memory. Taken together, these results highlight the importance of a hippocampo-cortico-thalamic circuit in the processing and persistence of spatial information in the Rat
Arsenault, Dany. "Remodelage développemental des synapses lemniscales dans le noyau ventral postérieur du thalamus." Thesis, Université Laval, 2007. http://www.theses.ulaval.ca/2007/24267/24267.pdf.
Full textBooks on the topic "Noyaux médians du thalamus"
Book chapters on the topic "Noyaux médians du thalamus"
Gil, Roger. "Neuropsychologie du thalamus, des noyaux gris centraux du cervelet." In Neuropsychologie, 567–77. Elsevier, 2018. http://dx.doi.org/10.1016/b978-2-294-75890-4.00025-0.
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