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Mehdi Khamassi

Affiliations: 
Institute of Intelligent Systems and Robotics CNRS / UPMC - ISIR 
Area:
Decision-making, reinforcement learning, prefrontal cortex, striatum, computational modelling, neurophysiology
Website:
http://www.isir.upmc.fr/?op=view_profil&nom=khamassi&id=82&lang=en
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"Mehdi Khamassi"
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Parents

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Alain Berthoz research assistant 2002-2003 CNRS - Collège de France, LPPA
Benoît Girard research assistant 2002-2003 ISIR, Universite Pierre & Marie Curie Paris 6
Angelo Arleo grad student 2004-2005 CNRS - Collège de France, LPPA
Agnes Guillot grad student 2002-2007 ISIR, Universite Pierre & Marie Curie Paris 6
Jean-Arcady Meyer grad student 2002-2007 ISIR, Universite Pierre & Marie Curie Paris 6
Sidney I. Wiener grad student 2003-2007 CNRS - Collège de France, LPPA
Francesco P. Battaglia grad student 2004-2007 CNRS - Collège de France, LPPA
Kenji Doya post-doc 2008-2008 Okinawa Institute of Science and Technology
 (guest researcher)
Peter Ford Dominey post-doc 2008-2010 Stem-cell and Brain Research Institute, INSERM
Emmanuel Procyk post-doc 2008-2010 Stem-cell and Brain Research Institute, INSERM
Raja Chatila research scientist 2012-2020 CNRS / Sorbonne Université

Children

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Vincent Douchamps research assistant 2004-2005 School of Life Sciences, University of Warwick
Louis-Emmanuel Martinet research assistant 2004-2005 Massachusetts General Hospital, Harvard Medical School
Laurent Dollé research assistant 2004-2006 CNRS / UPMC - ISIR
Pierre Enel research assistant 2008-2009 INSERM U846, SBRI
Ken Caluwaerts research assistant 2010-2010 NASA Ames Research Center
George Velentzas research assistant 2016-2020 National Technical University of Athens
Nassim Aklil grad student 2013- UPMC
Mariacarla Staffa grad student 2011-2012 University of Naples Federico II, Italy
Florian Lesaint grad student 2011-2014 CNRS / UPMC - ISIR
Jean Bellot grad student 2011-2015 CNRS / UPMC - ISIR
Erwan Renaudo grad student 2012-2016 University of Innsbruck
Guillaume Viejo grad student 2013-2016 Université Pierre et Marie Curie
Thibaud Griessinger grad student 2013-2017 Università degli studi di Trento, Italy
François Cinotti grad student 2016-2017 CNRS / UPMC - ISIR
Romain Cazé post-doc 2016-2017 CNRS / UPMC - ISIR
Ignasi Cos research scientist 2012-2013 Universitat Pompeu Fabra

Collaborators

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Angelo Arleo collaborator CNRS - Collège de France, LPPA
Francesco P. Battaglia collaborator CNRS - Collège de France, LPPA
Karim Benchenane collaborator CNRS - Collège de France, LPPA
Kenji Doya collaborator Okinawa Institute of Science and Technology
Elsa Florence Fouragnan collaborator
Benoît Girard collaborator ISIR, Universite Pierre & Marie Curie Paris 6
Adrien Peyrache collaborator CNRS - Collège de France, LPPA
Costas Tzafestas collaborator 2016-2020 National Technical University of Athens
Matthew F. Rushworth collaborator 2017-2020 Oxford
Jerome Sallet collaborator 2017-2020 Oxford
Marco Wittmann collaborator 2017-2020 Oxford
BETA: Related publications

Publications

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Wittmann MK, Fouragnan E, Folloni D, et al. (2020) Global reward state affects learning and activity in raphe nucleus and anterior insula in monkeys. Nature Communications. 11: 3771
Schut EHS, Alonso A, Smits S, et al. (2020) The Object Space Task reveals increased expression of cumulative memory in a mouse model of Kleefstra Syndrome. Neurobiology of Learning and Memory. 107265
Khamassi M, Girard B. (2020) Modeling awake hippocampal reactivations with model-based bidirectional search. Biological Cybernetics
Cinotti F, Marchand AR, Roesch MR, et al. (2019) Impacts of inter-trial interval duration on a computational model of sign-tracking vs. goal-tracking behaviour. Psychopharmacology
Genzel L, Schut E, Schröder T, et al. (2019) The object space task shows cumulative memory expression in both mice and rats. Plos Biology. 17: e3000322
Cinotti F, Fresno V, Aklil N, et al. (2019) Dopamine blockade impairs the exploration-exploitation trade-off in rats. Scientific Reports. 9: 6770
Bavard S, Lebreton M, Khamassi M, et al. (2018) Reference-point centering and range-adaptation enhance human reinforcement learning at the cost of irrational preferences. Nature Communications. 9: 4503
Cazé R, Khamassi M, Aubin L, et al. (2018) Hippocampal replays under the scrutiny of reinforcement learning models. Journal of Neurophysiology
Lee B, Gentry RN, Bissonette GB, et al. (2018) Manipulating the revision of reward value during the intertrial interval increases sign tracking and dopamine release. Plos Biology. 16: e2004015
Dollé L, Chavarriaga R, Guillot A, et al. (2018) Interactions of spatial strategies producing generalization gradient and blocking: A computational approach. Plos Computational Biology. 14: e1006092
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