Bernard Ans

Bernard Ans

Directeur de recherche CNRS




Bernard.Ans@upmf-grenoble.fr

Dernière mise à jour : 22.01.2010

Thèmes de Recherche

Modélisation connexionniste de l'apprentissage et de la mémoire humaine
Neuromimétique


  • Auto-rafraîchissement de la mémoire par re-création de pseudo-épisodes
  • Suppression de l'oubli catastrophique dans les systèmes connexionnistes distribués
  • Méchanismes de transfert cognitif dans les tâches d'apprentissage séquentiel
  • Apprentissage de séquences temporelles et programmation motrice
  • Modélisation connexionniste de la lecture et dyslexies acquises
  • Modélisation neuromimétique de l'effet McCollough
  • Validation expérimentale des prédictions des modèles

Research Topics

Connectionist models of human learning and memory
Neuromimetics


  • Memory self-refreshing by re-creating pseudo-episodes
  • Avoiding catastrophic forgetting in distributed neural networks
  • Cognitive transfer mechanisms in sequential learning tasks
  • Learning temporal sequences and motor programming
  • Connectionist model of reading and acquired dyslexia
  • Neural network model of the McCollough effect
  • Experimental validation of model predictions

Selected papers in Artificial neural networks

=> Early paper about Independent Component Analysis (ICA)

Musca, S., Rousset, S., & Ans, B. (2009). Artificial neural network whispering to the brain: nonlinear system attractors induce familiarity with never seen items. Connection Science, 21, 359-377.

Valdois, S., Ans, B. & Carbonnel, S (2008). Principes de base pour l'élaboration d'un modèle connexionniste psychologiquement plausible de l'apprentissage de la lecture. In M. Kail, M. Fayol & M. Hickmann (Eds.), Apprentissage des langues (pp. 379-404). Paris : CNRS Editions.

Juphard, A., Valdois, S., Carbonnel, S., Pichat, C., Ans, B., & Baciu, M. (2008). Length effects in reading: Evidence from behavioural and neuroimaging data. In M. Baciu (Ed.), Neuropsychology and cognition of language. Behavioural, neuropsychological and neuroimaging studies of spoken and written language (pp.3-21). Research SignPost Edition.

Juphard, A., Carbonnel, S., Ans, B. & Valdois, S. (2006). Length effect in naming and lexical decision: the multitrace memory model's account. Current Psychology Letters, 19, Vol.2.

Valdois, S., Carbonnel, S., Juphard, A., Baciu, M., Ans, B., Peyrin, C. & Segebarth, C. (2006). Polysyllabic pseudo-word processing in reading and lexical decision: Converging evidence from behavioural data, simulations and functional MRI. Brain Research, 1085, 149-162.

Baciu, M, Juphard, A., Ans, B., Carbonnel, S., & Valdois, S. (2006). fMRI evidence for ACV98 connectionist model for reading of mono and multi-syllabic words and pseudo-words. In F. J. Chen (Ed.), Brain mapping and language. New-York: Nova Science Publishers, Inc. (Chap. VII, pp. 181-199).

Juphard, A., Lachaux, J.-P., Baciu, M., Valdois, S., Carbonnel, S., Ans, B., Minotti, L., & Kahane, P. (2006). The assessment of gamma oscillations during reading according to ACV98 connectionist model. An intracranial EEG study. Proceedings of the 12th Annual Organization of Human Brain Mapping, Florence, Italy, Neuroimage, 31 (supl 1): S56.

Musca, S. C., Rousset, S., Ans, B. (2005). Creating false memories in humans with an artificial neural network: Implications for theories of memory consolidation. In B.G. Bara, L. Barsalou & M. Bucciarelli (Eds), Proceedings of the 27th Annual Meeting of the Cognitive Science Society. Mahwah, NJ: Laurence Erlbaum Associates Inc., pp1576-1581.

Ans, B. (2004). Sequential learning in distributed neural networks without catastrophic forgetting: A single and realistic self-refreshing memory can do it. Neural Information Processing - Letters and Reviews, 4, 27-32.

Ans, B., Rousset, S. & Musca, S. (2004). Neurones artificiels : des modèles pour comprendre. Journal du CNRS nº174.

Ans, B., Rousset, S., French, R.M., & Musca, S. (2004). Self-refreshing memory in artificial neural networks: Learning temporal sequences without catastrophic forgetting. Connection Science, 16, 71-99.

Musca, S., Rousset, S., & Ans, B. (2004). Effects of the learning material structure on retroactive and proactive interference in humans: When the self-refreshing neural network mechanism provides new insights. In H. Bowman & C. Labiouse (Eds.), Progress in Neural processing, Vol. 15 : Connectionist Models of Cognition and Perception II. London: World Scientific Inc. (pp. 15-25).

Musca, S., Rousset, S., & Ans, B. (2004). Differential retroactive interference in humans following exposure to structured or unstructured learning material: A single distributed neural network account. Connection Science, 16, 101-118.

Juphard, A., Baciu V. M., Valdois, S., Carbonnel, S., Ans, B., Lamalle, L., Pachot-Clouard, M., Segebarth, C. (2004). fMRI evidence for the ACV98 connectionist model in reading and lexical decision. Proceedings of the 10th Annual Meeting of the Organization for Human Brain Mapping, Budapest, Hungary, Neuroimage, 22 (supl 1): S28.

Valdois, S., Bosse, M.-L., Ans, B., Carbonnel, S., Zorman, M., David, D., & Pellat, J. (2003). Phonological and visual processing deficits can dissociate in developmental dyslexia: Evidence from two case studies. Reading and Writing, 16, 541-572.

Ans, B. & Marendaz, C. (2003). Les réseaux se font des illusions. Pour la Science, Numéro spécial sur les illusions (Avril).

Ans, B., Rousset, S., French, R.M., & Musca, S. (2002). Preventing catastrophic interference in multiple-sequence learning using coupled reverberating Elman networks. In W.D. Gray & C.D. Schunn (Eds.), Proceedings of the 24th Annual Meeting of the Cognitive Science Society, pp. 71-76, Mahwah, NJ: Lawrence Erlbaum Associates Inc.

Baciu, M., Ans, B., Carbonnel, S., Valdois, S., Juphard, A., Pachot-Clouard, M., & Segebarth, C. (2002). Length effect during word and pseudo-word reading. An event-related fMRI study. Neuroscience Research Communications, 30, 155-165.

Musca, S., Rousset, S., & Ans, B. (2002). Transfert d'information d'un réseau connexionniste vers le système cognitif humain par pseudo patterns. InCognito, 23, 61-68.

Ans, B., Marendaz, C., Hérault, J., & Séré, B. (2001). McCollough effect: A neural network model based on source separation. Visual Cognition, 8, 823-841.

French, R. M., Ans, B., & Rousset, S. (2001). Pseudopatterns and dual-network memory models: Advantages and shortcomings. In R. French & J. Sougné (Eds.), Connectionist models of learning, development and evolution (pp.1-10 ). London: Springer-Verlag.

Musca, S., Ans, B., & Rousset, S. (2001). Updating human memory: The pseudo-pattern hypothesis. The 3rd International Conference on Memory (ICOM-3), 16th-20th July 2001, Valencia, Spain.

Baciu, M., David, O., Pachot-Clouard, M., Carbonnel, S., Ans, B., & Segebarth, C. (2001). The reading of single words and single pseudo-words. An ER-fMRIstudy. Proceedings of the 7th Annual Meeting of the Organization for Human Brain Mapping, Brighton, Neuroimage, 13 (6), 499.

Baciu M., Juphard, A., David O., Pachot-Clouard M., Carbonnel S., Ans B., Segebarth C. (2001). Event-related fMRI study of the reading of words and of pseudowords. Proceedings of Joint 18th Annual Meeting of the European Society and International Society for Magnetic Resonance in Medicine and Biology, Glasgow, UK, Vol. 2, 1296.

Ans, B., & Rousset, S. (2000). Neural networks with a self-refreshing memory: Knowledge transfer in sequential learning tasks without catastrophic forgetting. Connection Science, 12, 1-19.

Marendaz, C., Ans, B., Hérault, J. & Séré, B. (2000). Modélisation connexionniste de l'effet McCollough. Société Française d'Optique Physiologique, 109-114.

Marendaz, C., Ans, B., & Hérault, J. (2000). A neuromimetic model of the McCollough effect: Temporal resistance and reverse effect. Proceedings of the Twenty-third European Conference on Visual Perception, Groningen, The Netherland, 27-31 August 2000. Perception, 29 (Supl), 35.

Ans, B., Carbonnel, S., & Valdois, S. (1998). A connectionist multiple-trace memory model for polysyllabic word reading. Psychological Review, 105, 678-723.

Ans, B., & Rousset, S. (1997). Avoiding catastrophic forgetting by coupling two reverberating neural networks. Comptes-Rendus de l'Académie des Sciences, Life Sciences, 320, 989-997 (presented by M. Imbert).

Carbonnel, S., & Ans, B. (1996). Les dyslexies centrales acquises : revue critique. Revue de Neuropsychologie, 6, 127-152.

Valdois, S., Carbonnel, S., & Ans, B. (1996). De l'orthographe &eagrave; la prononciation: Apport de la psychologie et de la neuropsychologie cognitives. Lidil, 13, 41-65.

Ans, B., Coiton, Y., Gilhodes, J.C., & Velay, J.L. (1994). A neutral network model for temporal sequence learning and motor programming. Neural networks, 7, 1461-1476.

Gilhodes, J. C., Coiton, Y., Roll, J. P. & Ans, B. (1993). Propriomuscular coding sensation: Experimental approach and mathematical modelling. Biological Cybernetics, 68, 509-517.

Velay, J. L., Gilhodes, J. C., Ans, B., & Coiton, Y. (1993). A neural network model for motor shape learning and programming. In S. Gielen & B. Kappen (Eds.), Proceedings of the international conference on artificial neural networks (pp. 51-55). London: Springer Verlag.

Tiberghien, G., Ans, B., Mendelsohn, P., & George, C. (1990). Contraintes structurales et fonctionnelles des systèmes de traitement. In J.F. Richard, C. Bonnet & R. Ghiglione, Traité de psychologie cognitive 2: Le traitement de l'information symbolique (pp. 1-23). Paris: Dunod.

Ans, B. (1990). Neuromimetic model for storage and recall of temporal sequences. Comptes Rendus de l'Académie des Sciences Paris, Série III, 311, 7-12 (presented by J.-P. Changeux).

Ans, B. (1990). Associative learning in a neuromimetic network with local competitions. Comptes Rendus de l'Académie des Sciences Paris, Série III, 310, 127-132 (presented by J.-P. Changeux).

Ans, B. (1989). Learning arbitrary associations: A neuromimetic model. In G. Tiberghien (Ed.), Advances in Cognitive Science: Theory and applications (pp. 62-85). Chichester: Ellis Horwood.

Ans, B., Hérault, J., & Jutten, C. (1985). Architectures neuromimétiques adaptatives : Détection de primitives. Proceedings of Cognitiva 85 (CESTA, ARC, AFCET), Vol. 2, pp. 593-597. Paris, 4-7 Juin 1985.

Hérault, J., Jutten, C. & Ans, B. (1985). Détection de grandeurs primitives dans un message composite par une architecture de calcul neuromimétique en apprentissage non supervisé. Proceedings of the 10th Workshop Traitement du signal et ses applications (GRETSI), Vol. 2, pp. 1017-1022. Nice, 20-24 Mai 1985

Hérault, J., & Ans, B. (1984). Neural network with modifiable synapses : Decoding of composite sensory messages under unsupervised and permanent learning. Comptes Rendus de l'Académie des Sciences Paris, Série III, 299, 525-528 (presented by J.-P. Changeux).

Ans, B., & Gilhodes, J.C., & Hérault, J. (1983). Simulation de réseaux neuronaux (SIRENE). II. Hypothèse de décodage du message de mouvement porté par les afférences fusoriales IA et II par un mécanisme de plasticité synaptique. Comptes Rendus de l'Académie des Sciences Paris, Série III, 297, 419-422 (présenté par Pierre Karli).

Ans, B., & Gilhodes, J.C. (1983). Simulation de réseaux neuronaux (SIRENE). I. Le modèle. Comptes Rendus de l'Académie des Sciences Paris, Série III, 297, 361-364 (présenté par Pierre Karli).