Literatura científica selecionada sobre o tema "Systèmes de récompenses"
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Artigos de revistas sobre o assunto "Systèmes de récompenses"
Labbé St-Vincent, Simon, e André Blais. "Le vote à l’Élection d’à côté". Articles 35, n.º 1 (24 de março de 2016): 49–71. http://dx.doi.org/10.7202/1035792ar.
Texto completo da fonteGill, Kenneth J., e Carlos W. Pratt. "Le partage des profits : une stratégie de prise en charge psychiatrique". Santé mentale au Québec 19, n.º 1 (11 de setembro de 2007): 105–16. http://dx.doi.org/10.7202/032297ar.
Texto completo da fonteLatour, Gaël. "Construire un système d’imagerie 3D de tomographie par cohérence optique (OCT)". Photoniques, n.º 114 (2022): 21–25. http://dx.doi.org/10.1051/photon/202111421.
Texto completo da fonteDumais, A., S. Potvin, G. Martin, S. Hodgins, A. Mendrek, O. Lungu, A. Tikasz, S. Richard-Devantoy e C. Joyal. "Schizophrénie et violence : rôle de l’impulsivité, étude en imagerie fonctionnelle". European Psychiatry 30, S2 (novembro de 2015): S33. http://dx.doi.org/10.1016/j.eurpsy.2015.09.097.
Texto completo da fonteVahé, Amandine, e Thierry Debanne. "Effet d’interaction entre stratégie régulatrice et structure de récompense de la situation : étude sur la performance au pénalty en handball". Movement & Sport Sciences - Science & Motricité, n.º 106 (2019): 19–26. http://dx.doi.org/10.1051/sm/2019025.
Texto completo da fonteFeryn, Mathieu. "Les mondes du jazz et leurs publics en France. Une réflexion sur les pratiques des acteurs de la création au cours des années 2000". Revue internationale animation, territoires et pratiques socioculturelles, n.º 15 (8 de março de 2019): 65–70. http://dx.doi.org/10.55765/atps.i15.223.
Texto completo da fonteDennery, Charles. "La logique rétributive de la durée d’assurance requise et des critères de validation de trimestres". Revue d'économie politique Vol. 134, n.º 1 (26 de fevereiro de 2024): 1–9. http://dx.doi.org/10.3917/redp.341.0001.
Texto completo da fonteRuolt, Anne. "Le système des récompenses et des peines selon L.-F.F. Gauthey (1795–1864)". Paedagogica Historica 49, n.º 5 (outubro de 2013): 607–24. http://dx.doi.org/10.1080/00309230.2013.786106.
Texto completo da fonteBLUME, Stuart S. "D’une perspective « extrinsèque » en sociologie de la science". Sociologie et sociétés 7, n.º 1 (30 de setembro de 2002): 9–28. http://dx.doi.org/10.7202/001074ar.
Texto completo da fonteDreher, Jean-Claude. "Dysfonctionnements du système de récompense et biais cognitifs chez les joueurs pathologiques". Bulletin de l'Académie Nationale de Médecine 205, n.º 7 (agosto de 2021): 748–60. http://dx.doi.org/10.1016/j.banm.2021.05.010.
Texto completo da fonteTeses / dissertações sobre o assunto "Systèmes de récompenses"
Li, Yansong. "Modulation du système de récompense par le risque et le type de récompenses chez l’homme sain et chez des joueurs pathologiques : une approche intégrative combinant enregistrements intracrâniens, mesures hormonales et IRMf". Thesis, Lyon 1, 2014. http://www.theses.fr/2014LYO10202/document.
Texto completo da fonteHow our brain processes reward information and how such processing is influenced by parameters such as reward probability and risk have become key questions in cognitive neuroscience. In addition, recent researches suggest a modulatory effect of a number of hormones on brain and behavior and a dysfunction of the reward system in a number of behavioral addictions, such as gambling disorder. This Ph.D. used intracranial EEG (iEEG) and combined Functional Magnetic Resonance Imaging (fMRI) and endocrinology to perform four studies investigating reward processing in healthy subjects, patients with epilepsy implanted with depth electrodes and individuals with gambling disorder. Together, our series of studies advance our understanding of new aspects concerning reward processing in healthy subjects, patients with epilepsy and individuals with gambling disorder
Dubol, Manon. "Étude en neuro-imagerie multimodale du système dopaminergique et du système de récompense chez des patients psychiatriques". Thesis, Université Paris-Saclay (ComUE), 2017. http://www.theses.fr/2017SACLS477/document.
Texto completo da fonteThis work focuses on the study of the neurobiological bases of psychiatric disorders using multimodal imaging, with a particular interest in the dopaminergic pathways and the reward system. Its primary objective is to establish, through Positron Emission Tomography (PET) and Magnetic Resonance Imaging (MRI), a link between the dopaminergic system and the reward system from a functional and structural point of view in humans, and especially in patients with psychiatric disorders such as schizophrenia, cocaine addiction and depression. Numerous studies have demonstrated the concomitant existence of abnormalities affecting dopaminergic function and reward system in several mental disorders. However, understanding of the linkages between dopaminergic dysfunction and dysfunction of the reward circuit in psychiatric disorders remains limited. The main aims of this thesis are to improve knowledge about the pathophysiology of several mental disorders such as schizophrenia, addiction and depression, and to demonstrate the interest of both a dimensional approach and the use of multimodal imaging in psychiatric research, to explore the molecular level of functional neural networks. In perspective, this thesis supports the interest of brain imaging in clinical practice, as it could later clarify the diagnosis, predict response to treatments or follow the course of the disease
Chehade, Imad. "Essais sur l'économie des technologies blockchain et des crypto-monnaies". Electronic Thesis or Diss., Normandie, 2023. http://www.theses.fr/2023NORMR057.
Texto completo da fonteThis thesis presents three essays that contribute to determining the opportunities and challenges of blockchain technologies and cryptocurrencies, in order to understand their potential for adoption in the banking system and the economy in general. Firstly, we have demonstrated, through a literature review, practical experiments, and a comparative analysis of different existing DLT platforms, that consortium alternative DLTs are the prototypes likely to predominate in the banking system in the future. Next, we highlighted the resilience and robustness of the main reward systems used by mining pools in the face of Bitcoin halving events. This comparison is complemented by additional calculations that truly enrich the analysis of the decisions and behaviors of miners joining a pool. Finally, we developed a tokenization solution tailored for Lebanon, aimed at ensuring economic recovery, while addressing the country’s tumultuous economic context and examining the challenges of existing digital solutions
David, Vincent. "Opiacés et systèmes centraux de récompense : étude à l'aide d'un modèle d'auto-administration intracérébrale chez la souris". Bordeaux 1, 1997. http://www.theses.fr/1997BOR10538.
Texto completo da fonteGoter, Françoise. "Etude du système de sanctions-récompenses en lien avec la performance des organisations de service public : cas d'expérimentation". Lyon 3, 2005. https://scd-resnum.univ-lyon3.fr/in/theses/2005_in_goter_f.pdf.
Texto completo da fonteWithin the framework of their initiatives of modernization, numerous organizations of public service are in search of a model of effective management of their activities and their human resources. This objective notably incites them to look for practices of more stimulating penalties-rewards and favoring a bigger efficiency-efficacy of the actors in their activities. Through the study of the practices of penalties-rewards of the organizations of public service, we try to define the main variables of the system of penalties-rewards and to determine the conditions of development of their efficiency. Our hypothesis is that the identification of individual and collective penalties-rewards of the efficiency of the actors and their development within the framework of a structured and stimulating system are a powerful control lever to lead to more efficient organizations of public service and better insure the survival-development of the public service
Loiodice, Simon. "Altérations du système de récompense dans la maladie de Parkinson : relation entre comportement et signatures moléculaires. : Neuropsychopharmacologie". Thesis, Clermont-Ferrand 1, 2016. http://www.theses.fr/2016CLF1MM10.
Texto completo da fonteIn Parkinson’s Disease (PD), the progressive dopaminergic (DA) cell loss mainly affects the substantia nigra pars compacta (SNc). The motor symptoms are classically managed by DA replacement therapies (DRT). Although adding DA agonists to levodopa treatment may contribute to prevent motor complications, it may be associated with drug‑induced changes in reward related pathways. Up to 14% of PD patients under DRT may suffer from ‘addiction‑like’ behavior such as pathological gambling, hypersexuality or DA medication‑induced substance abuse. To date, the only therapeutic answer consists in lowering the DA medications which deteriorates the motor symptoms. Neuroadaptations leading to reward bias in PD patients under DRT are still poorly understood. To address this challenge, we propose a work in which we have assessed the rewarding effect of the D2/D3 agonist pramipexole (ppx) after chronic exposure to L‑dopa in an alpha-synuclein PD rat model. In a first study, we assessed the effect of repeated DA receptors stimulations on sensitization of the reward system in a parkinsonian context. Our findings demonstrated that ppx had a rewarding effect after chronic L-dopa administrations and alpha-synuclein-mediated nigral loss. No transcriptional changes within DA receptors were highlighted. However, we identified an association between the main drug or lesion and transcriptional changes which were potentially related to the context of psychostimulant addiction. This study provides evidences strongly suggesting that PD-like lesion and L-dopa therapy were concomitant factors involved in striatal remodeling underlying the ppx-induced place preference. Molecular and pharmacological data suggested a key involvement ofthe glutamatergic pathway in this behavioral outcome. These data were consistent with literature describing major striatal glutamate imbalance as a common feature of drug addiction and Parkinson’s disease physiopathological contexts. Hence, we designed a second study aiming to further investigate the therapeutic potential of glutamatergic receptors inhibition. A bilateral lesion of the SNc was performed in the rat using AAV-mediated overexpression of the alpha-synuclein. This lesion was followed by chronic L-dopa administrations. Then, the effect of the metabotropic glutamate receptor 5 (mGluR5) antagonist MPEP on ppx reinforcing properties was assessed in a place conditioning paradigm. Finally, analysis at the protein level was conducted to associate drug and lesion induced behavioral changes to molecular endpoints. Acquisition and expression of the ppx-induced place preference was abolished by the MPEP. Furthermore, we identified neural networks and protein changes underlying the striatal remodeling associated with the behavioral outcome. All this work provides new insights into the physiopathological context associated to the PD/DRT related reward bias. Convergent molecular and pharmacological data strongly suggest mGluR5 as a promising therapeutic target
Reisiger, Anne-Ruth. "Pathologie du système de récompense : effets à long terme d’une exposition chronique à la nicotine et au sucrose". Thesis, Bordeaux 1, 2013. http://www.theses.fr/2013BOR14870/document.
Texto completo da fonteLearning mechanisms associated with active responding for nicotine enhanced the excitability of the ILCx-BNST pathway. The objective of this project was to better understand the involvement of the ILCx-BNST pathway in nicotine self-administration. Since the endocannabinoid system controls nicotine reinforcement and nicotine-induced synaptic modifications, we examined the role of CB1 receptors in the BNST. We showed that acquisition of nicotine IVSA was associated with a persistent facilitation of LTP induction at ILCx-BNST synapses. Behaviorally, electrical stimulation temporarily increased excessive responding to nicotine when nicotine was not available. Moreover, using intra-BNST pharmacology, we revealed that stimulation of BNST CB1 receptors enhanced sensitivity to nicotine-paired cue. In contrast, after a prolonged history of nicotine intake, it blocked drug-seeking in a reinstatement model of relapse. Drug addiction is partly due to the inability to stop using despite negative consequences. The hypothesis that palatable food induces similar uncontrolled consumption is becoming more widespread. As drug addiction is known to increases activity of VTA DA neurons, we aimed to examine whether exposure to sucrose would induce similar neuronal modifications and impair the capacity to respond to an aversive stimulus. We found that sucrose enhanced spontaneous activity of DA VTA neurons. In addition, while a footshock caused a nearly complete inhibition of activity of VTA DA neurons in control rats, sucrose disrupted signaling of an aversive stimulus. These modifications were independent from the caloric state of the rats
Gobeil, Simard Alexis. "Étude de l'implication des enképhalines et des récepteurs mu opioïdes dans la sensibilisation au sel au sein du système de récompense". Thesis, Université Laval, 2012. http://www.theses.ulaval.ca/2012/28927/28927.pdf.
Texto completo da fonteParnaudeau, Sébastien. "Rôle du récepteur des glucocorticoïdes dans la vulnérabilité aux drogues d'abus : mutagénèse conditionnelle chez la souris". Paris 6, 2008. http://www.theses.fr/2008PA066350.
Texto completo da fonteSaint-Périer, Amaury de. "Valéry Giscard d'Estaing, la France et l'Europe monétaire de 1974 à 1981 : la persévérance récompensée". Paris 4, 2008. http://www.theses.fr/2008PA040058.
Texto completo da fonteFrom 1974 to 1978, Valéry Giscard d'Estaing strives to achieve monetary stability for the European community (EC). His aim is to put an end to the monetary anarchy caused by oil shock and the inflation which is devastating Europe. He fails however to secure the support of his German partner. His project clashes witch the position of chancellor Helmut Schmidt who will only agree to a monetary project if inflation is controlled in the long term. Germany's attitude changes in 1978. It now wishes to stabilize the deutschmark in order to improve trade and diminish the influence of the dollar in the EC. Their common purpose leads the two countries to the creation of the European monetary systems (EMS), which should permit the convergence of the economies and the stabilisation of the currencies, as well as improve trading and growth in the EC member states. The EMS also entails the creation of the European Currency Unit designed to become the Common Market single currency. The nine member states adhere to the EMS, with the United Kingdom participating in the ECU, but not in the Exchange Rate Mechanism (ERM) since it seek to menage its own currency freely. In their endeavour, Giscard and Schmidt risked unpopularity by confronting their countries' conservatism. Giscard face the supporters of monetary
Capítulos de livros sobre o assunto "Systèmes de récompenses"
Tebeka, S., S. Mauries e P. A. Geoffroy. "Système de récompense et rythmes biologiques". In Les Addictions, 71–78. Elsevier, 2023. http://dx.doi.org/10.1016/b978-2-294-77934-3.00009-3.
Texto completo da fonte