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Добірка наукової літератури з теми "Rythme cérébraux"
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Статті в журналах з теми "Rythme cérébraux"
Blanchard, M., C. Gerves-Pinquié, M. Feuilloy, M. Le Vaillant, W. Trzepizur, N. Meslier, F. Goupil, et al. "Association de la charge hypoxique et de la variabilité du rythme cardiaque avec l’incidence des accidents vasculaires cérébraux chez les patients explorés pour suspicion de syndrome d’apnée du sommeil." Revue des Maladies Respiratoires Actualités 13, no. 1 (January 2021): 14. http://dx.doi.org/10.1016/j.rmra.2020.11.021.
Повний текст джерелаLecuyer, A. "La réalité virtuelle : un bond technologique." European Psychiatry 29, S3 (November 2014): 561. http://dx.doi.org/10.1016/j.eurpsy.2014.09.381.
Повний текст джерелаZugaro, Michaël. "Rythmes cérébraux et codage neural de la mémoire." L’annuaire du Collège de France, no. 115 (November 1, 2016): 920–22. http://dx.doi.org/10.4000/annuaire-cdf.12642.
Повний текст джерелаRoutier, Laura, Mahdi Mahmoudzadeh, Marine Panzani, Hamed Azizollahi, Sabrina Goudjil, Guy Kongolo, and Fabrice Wallois. "Les générateurs corticaux des rythmes cérébraux du prématuré." Neurophysiologie Clinique 48, no. 4 (September 2018): 243. http://dx.doi.org/10.1016/j.neucli.2018.06.062.
Повний текст джерелаDefebvre, L., J. L. Bourriez, P. Derambure, F. Cassim, A. Destrée, and J. D. Guieu. "Vieillissement cérébral et maladie de Parkinson : réactivité des rythmes électrocorticaux." Neurophysiologie Clinique/Clinical Neurophysiology 29, no. 4 (September 1999): 360. http://dx.doi.org/10.1016/s0987-7053(99)90070-9.
Повний текст джерелаZugaro, Michaël. "Rythmes cérébraux et codage neural de la mémoire / Brain rhythms and neural coding of memory." L’annuaire du Collège de France, no. 116 (June 15, 2018): 664–65. http://dx.doi.org/10.4000/annuaire-cdf.13511.
Повний текст джерелаZugaro, Michaël. "Rythmes cérébraux et codage neural de la mémoire / Brain rhythms and neural coding of memory." L’annuaire du Collège de France, no. 117 (September 1, 2019): 650–52. http://dx.doi.org/10.4000/annuaire-cdf.14796.
Повний текст джерелаZugaro, Michaël. "Rythmes cérébraux et codage neural de la mémoire / Brain rhythms and neural coding of memory." L’annuaire du Collège de France, no. 118 (December 30, 2020): 674–75. http://dx.doi.org/10.4000/annuaire-cdf.16614.
Повний текст джерелаBautin, N., Z. Samara, M. Zelter, T. Similowski, and C. Straus. "Rôle respectif des oscillateurs branchial et pulmonaire dans la dynamique chaotique du rythme ventilatoire de tronc cérébral isolé de têtard." Revue des Maladies Respiratoires 25, no. 9 (November 2008): 1201. http://dx.doi.org/10.1016/s0761-8425(08)75078-2.
Повний текст джерелаLuauté, Jacques, and Maude Beaudoin-Gobert. "Optimiser la reprise de conscience après le coma. Du laboratoire au chevet du malade et vice et versa." Médecine Intensive Réanimation 31, Hors-série 1 (June 24, 2022): 11–24. http://dx.doi.org/10.37051/mir-00113.
Повний текст джерелаДисертації з теми "Rythme cérébraux"
Gencel, Laurent. "Exploration rythmique des accidents vasculaires cérébraux inexpliqués." Bordeaux 2, 1993. http://www.theses.fr/1993BOR23092.
Повний текст джерелаJuventin, Maxime. "Can the respiratory rhythm be a global signal promoting long-range communication in the brain?" Thesis, Lyon, 2021. https://tel.archives-ouvertes.fr/tel-03789626.
Повний текст джерелаThe brain is the site of intense rhythmic activity, each area of the brain expressing one or more rhythms. A central question in neuroscience is to understand how these rhythmic activities can coordinate across very distant areas of the brain to solve functions as complex as environmental perception, adapted motor responses or memory formation. One possibility is that the system uses a common time reference, a sort of central clock, from which the different neural networks involved in a function could coordinate. Today, the existence and nature of this clock are still debated. We hypothesize that the respiratory rate could be one of these central clocks, constituting a reference signal for the coordination of different areas of the brain. As a central clock, breathing has major advantages: reliability (because it is a vital function), flexibility (because it adapts to the needs of the organism), low cost (because it is a rhythm which is not not created specifically for this function). In the olfactory system, the link between respiratory rate and neuronal activity is undeniable. Respiration causes slow oscillations in the respiratory rate, bursts of rapid oscillations (gamma and beta) and the discharge of neurons. Recent literature, in which my team participates, has shown that this respiratory influence of neuronal activity is not restricted to the olfactory system, but on the contrary extends to the entire brain (neocortex, amygdala, hippocampus, thalamus). In most of the non-olfactory areas recorded the respiratory rate also modulates the discharge of neurons and rapid oscillations. The slow oscillations associated with breathing therefore seem to affect the overall dynamics of the brain. My thesis project is made up of two parts. First, in order to confirm an influence of the respiratory rate on neurons, I made intracellular recordings in four non-odor areas in anesthetized rats. The targeted structures were the median prefrontal cortex, the primary somatic cortex, the primary visual cortex and finally the hippocampus. I was able to observe respiration modulation in most of these neurons. The quantification of these data shows that the respiratory modulation events are short but observed in a significant number of neurons. These data also provide evidence that the respiratory modulation of various brain areas is not solely due to volume conduction. In a second step, in order to study the coordination of cerebral areas by the respiratory rhythm, I analyzed recordings of multisite local field potentials (LFP) in the vigilant rat. The recordings contain seven areas of the brain (olfactory bulb, anterior piriformis cortex, primary visual cortex, median prefrontal cortex, primary somatic cortex, CA1, dentate gyrus) and respiration. I was able to observe slow oscillations related to respiration in all brain states. But it is during calm awakening that respiratory modulation is greatest and appears in all recorded areas. In parallel, these slow oscillations are coupled with several types of fast oscillations. Finally, I wanted to know if, during the calm state of wakefulness, where LFPs of a large brain network are synchronized with respiration, unit activities can also synchronize with the respiratory signal. To do this, I set up an electrophysiological recording station in constrained vigilant rats allowing the recording of numerous neurons in pairs of cerebral structures with "silicon probes". The station is now functional and I was able to register 6 animals. These last data will not be fully processed when I am defending my thesis. I will present preliminary results which already allow us to show that respiration can synchronize the unit activities of many cells in even spatially distant regions of the brain
Zaepffel, Manuel. "Etude des mécanismes fonctionnels de la préparation du mouvement : inférences à partir des potentiels électrophysiologiques de surface, intracorticaux et des rythmes cérébraux dans une tâche de saisie manuelle." Thesis, Aix-Marseille, 2013. http://www.theses.fr/2013AIXM5100.
Повний текст джерелаFor grasping, the motor system has to control several movement parameters to produce a motor command adapted to the object properties. The understanding of the mechanisms involved in the development of this motor command relies on several questions. What kinds of parameters are processed by the nervous systems? What are the cortical structures involved? When and how these parameters are processed? During the execution or during the preparation phase preceding movement initiation? All these questions are addressed in this thesis which general objective is to provide a better understanding of the mental processes linking perception to action and to clarify how the functional organization of these processes is reflected in the neurophysiological activity. Our research is based in particular on the comparison between humans and monkeys studied in a similar experimental setting and performing an identical reach-to-grasp task. The results of this work led us to focus our discussion on three main axes. First, they allowed to specify the functional principles underlying the preparation of grasping movements. Second, we identified several components that characterize the modulations of the beta rhythm (15-35 Hz) and pinpointed the main factors governing their presence or absence. In this sense, we propose a hypothesis for interpreting in a unified theoretical framework a large number of studies that often provide conflicting interpretations of this sensorimotor rhythm
Zugaro, Michaël. "Rythmes cérébraux et codage neural de la mémoire." Habilitation à diriger des recherches, Université Pierre et Marie Curie - Paris VI, 2009. http://tel.archives-ouvertes.fr/tel-00599428.
Повний текст джерелаSzurhaj, William. "Etude intracérébrale chez l'Homme des rythmes électriques corticaux sensorimoteurs." Lille 2, 2005. http://www.theses.fr/2005LIL2S008.
Повний текст джерелаThe preparation and execution of voluntary movement may be studied by the reactivity of electroencephalographic rhythms: the mu, beta, and gamma rhythms. In scalp studies, the voluntary movement is preceded by a mu and beta rhythms desynchronization beginning about 2 s before movement onset, reaching its maximum during the movement, and followed by a beta rhythm synchronization. Basic mechanisms underlying these phenomena remain unclear. With the aim of better understanding the sources and significance of the EEG rhythms changes, we directly recorded cortical, electrical activity before, during and after movement using intracerebral electrodes in epileptic subjects investigated by stereoelectroencephalo-graphy. We show that (i) in one hand, low frequency rhythms (mu and beta) desynchronize before movement onset with a broad distribution, in the whole sensorimotor cortex and (ii) in the other hand, high frequency rhythms synchronize during movement, with a very focused distribution that is consistent with the functional map. The movement offset is followed by a beta synchronization. Mu and beta desynchronizations are predominantly observed in primary sensorimotor areas, but without any somatotopic distribution. Gamma rhythm synchronization appears to be very focused to the primary sensorimotor areas that are involved in the movement. The beta band seems to be composed of several rhythms with different sources and reactivities, but with a similar temporal relationship with the movement offset. This could mean that similar mechanisms underlie the beta synchronization. We suggest that mu and/or beta desynchronization reflect the thalamo-cortical desynchronization, which could be necessary to the setting of the gating, i. E. With the aim to make the unnecessary inputs less efficient. The gamma synchronization may serve to facilitate afferences from the muscles and joints involved in the movement to the motor cortico-spinal cells, which would be necessary for controlling the ongoing movement. The beta synchronization, following the movement, could reflect the restoration of the subcortical-thalamo-cortical loop
Limoge-Lendais, Isabelle. "Effets de l'électrostimulation cérébrale transcutanée sur le rythme veille-sommeil et le comportement alimentaire chez le rat." Paris 5, 1993. http://www.theses.fr/1993PA05M115.
Повний текст джерелаBaillard, Christophe. "Analyse temps / fréquence du rythme cardiaque chez l'homme : repolarisation et hypertrophie ventriculaire chez le rat." Paris 7, 2002. http://www.theses.fr/2002PA077014.
Повний текст джерелаJurysta, Fabrice. "Contribution à l'étude de la relation entre l'activité cérébrale et la variabilité du rythme cardique au cours du sommeil." Doctoral thesis, Universite Libre de Bruxelles, 2010. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210016.
Повний текст джерелаEl, Kanbi Karim. "Les rythmes lents du sommeil NREM : caractérisation, régulation spatio-temporelle et stimulations auditives : Étude transversale du sommeil chez l’homme et la souris." Thesis, Sorbonne université, 2019. http://www.theses.fr/2019SORUS644.
Повний текст джерелаSleep is an essential state in animals that is characterized by immobility, brain oscillations and homeostatic regulation. The slow rhythms of the NREM sleep phase are a strong marker of this homeostasis and sleep pressure. Several terms and methods are used to define and detect these slow rhythms, however, they are all supposed to be associated with the occurrence of a DOWN state of cortical neurons. The different detection methods are first evaluated and compared. Auditory stimuli, by exciting cortical neurons, are able to induce or destroy slow rhythms: by means of a brain-machine interface in mice, the stimulation process is then analysed to understand its mechanisms and effects. Then, a new approach is proposed to better understand the link between the spatial and temporal regulations of slow rhythms: the observed homeostasis of phenomena such as slow waves or delta waves could be explained by their spatial evolution. A final part focuses on the evolution of the dynamics of slow rhythms with ageing in humans. Using a database of hundreds of EEG device users, the analysis of large-scale electrophysiological sleep data shows a decline in several NREM sleep indicators with age. This thesis therefore provides new insights into the understanding of slow rhythms and their regulation in rodents and humans
Ghosn, Rania. "Effets des téléphones portables sur la physiologie humaine : vascularisation cérébrale, microcirculation cutanée, échauffement cutané et électroencéphalogramme." Phd thesis, Université de Picardie Jules Verne, 2013. http://tel.archives-ouvertes.fr/tel-00931086.
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