Le cerveau multidimensionnel

Valérie Ego-Stengel

Department of Integrative and Computational Neurosciences (ICN)
Paris-Saclay Institute of Neuroscience (Neuro-PSI)
UMR 9197 / CNRS - University Paris-Sud
Building 32, CNRS - 1 avenue de la Terrasse - 91190 Gif-sur-Yvette - FRANCE

- Tel : +33(0) 1 69 82 34 46
- Email : valerie.ego-stengel [at] cnrs.fr
- Curriculum Vitae
- Google Scholar

Throughout their life, animals learn new information and integrate it with prior knowledge. This process allows organisms to adapt their motor behavior optimally to sensory input from the environment. To support sensorimotor learning, the adult brain must undergo modifications at multiple levels and on multiple timescales. My long-term goal is to investigate directly the neuronal activity of an animal during learning of a new behavioral skill. More specifically, I am interested in how cortical motor neurons read out information from sensory areas in order to generate appropriate movements. This will be studied in a closed-loop setting in which motor cortex activity drives an external actuator, and sensory feedback about the actuator state is fed back to the brain by stimulation in primary cortical areas. In particular, we will examine the requirements in terms of spatial and temporal organization of the feedback patterns. The main hypothesis that we propose to test is whether feedback needs to follow rules of natural patterns of activity, or if the brain can learn to use any type of feedback.


- Dorian Goueytes, Aamir Abassi, Henri Lassagne, Daniel E. Shulz, Luc Estebanez and Valérie Ego-Stengel (2019) Control of a robotic prosthesis simulation by a closed-loop intracortical brain-machine interface. Proc. IEEE Conf. on Neural Engineering. PDF

- Aamir Abassi, Dorian Goueytes, Daniel E. Shulz, Valérie Ego-Stengel* and Luc Estebanez* (2018) A fast intracortical brain–machine interface with patterned optogenetic feedback. Journal of Neural Engineering 15(4) : 046011. PDF
- Luc Estebanez, Isabelle Ferezou, Valerie Ego-Stengel and Daniel Shulz (2018) Representation of tactile scenes in the rodent barrel cortex. Neuroscience 368 : 81-94. PDF

- Pauline Kerekes, Aurélie Daret, Daniel Shulz* and Valerie Ego-Stengel* (2017) Bilateral Discrimination of Tactile Patterns without Whisking in Freely Running Rats. The Journal of Neuroscience 37(32) : 7567-7579. PDF

- Pierre-Jean Arduin, Yves Frégnac, Daniel Shulz and Valerie Ego-Stengel (2014) Bidirectional control of a one-dimensional robotic actuator by operant conditioning of a single unit in rat motor cortex. Frontiers in Neurosciences 8 : 206. PDF

- Pierre-Jean Arduin, Valerie Ego-Stengel, Yves Frégnac and Daniel Shulz (2013) Master neurons induced by operant conditioning in rat motor cortex during a brain-machine interface task. The Journal of Neuroscience 33(19) : 8308-20. PDF

- Valerie Ego-Stengel*, Julie Le Cam* and Daniel Shulz (2012) Coding of apparent motion in the thalamic nucleus of the rat vibrissal somatosensory system. The Journal of Neuroscience 32 : 3339-3351. PDF

- Daniel Shulz and Valerie Ego-Stengel (2012) S1 long-term plasticity Scholarpedia 7(10) : 7615.

- Valerie Ego-Stengel and Matthew Wilson (2010) Disruption of ripple-associated hippocampal activity during rest impairs spatial learning in the rat. Hippocampus 20 : 1-10. PDF

- Vincent Jacob, Julie Le Cam, Valerie Ego-Stengel and Daniel Shulz (2008) Emergent Properties of Tactile Scenes Selectively Activate Barrel Cortex Neurons. Neuron 60 : 1112-1125. PDF

- Valerie Ego-Stengel and Matthew Wilson (2007) Spatial selectivity and theta phase precession in CA1 interneurons. Hippocampus 17 : 161-74. PDF

- Valerie Ego-Stengel, Tadeu Mello e Souza, Vincent Jacob and Daniel Shulz (2005) Spatiotemporal characteristics of neuronal sensory integration in the barrel cortex of the rat. Journal of Neurophysiology 93 : 1450-67. PDF

- Daniel Shulz, Valerie Ego-Stengel and Ehud Ahissar (2003) Acetylcholine-dependent potentiation of temporal frequency representation in the barrel cortex does not depend on response magnitude during conditioning. Journal of Physiology (Paris) 97 : 431-9. PDF

- Valerie Ego-Stengel, Vincent Bringuier and Daniel Shulz (2002) Noradrenergic modulation of functional selectivity in the cat visual cortex : an in vivo extracellular and intracellular study. Neuroscience 111 : 275-89. PDF

- Valerie Ego-Stengel, Daniel Shulz, Sebastian Haidarliu, Ronen Sosnik and Ehud Ahissar (2001) Acetylcholine-dependent induction and expression of functional plasticity in the barrel cortex of the adult rat. Journal of Neurophysiology 86 : 422-37. PDF

- Daniel Shulz, Ronen Sosnik, Valerie Ego-Stengel, Sebastian Haidarliu and Ehud Ahissar (2000) A neuronal analogue of state-dependent learning. Nature 403 : 549-53. PDF

- John Bechhoefer, Valerie Ego-Stengel, Sebastien Manneville and Brad Johnson (1995) An experimental study of the onset of parametrically pumped surface waves in viscous fluids. Journal of Fluid Mechanics 288 : 325-350. PDF
- Rodolph Vuilleumier, Valerie Ego-Stengel, Louis Neltner and Anne Marie Cazabat (1995) Tears of wine : The stationary state. Langmuir 11 : 4117-4121. PDF
- Laurent Daudet, Valerie Ego-Stengel, Sebastien Manneville and John Bechhoefer (1995) Secondary instabilities of surface waves on viscous fluids in the Faraday instability. Europhysics Letters 32 : 313-318. [PDF→doc1287]

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