

Laboratoire de Psychologie et Neurocognition
CNRS UMR 5105
Université Pierre Mendès-France
Bâtiment Sciences de l'Homme et Mathématiques
BP47, 38040 Grenoble Cedex 9 France
Last update: 02.18.2013
Scientific Supervisor of the « Centre for the diagnosis of language and learning disorders », Paediatric department, CHURG Nord, La Tronche, FRANCE.
| 1999 | HDR in Psychology. “ L’apprentissage de la lecture : Apport de la neuropsychologie Cognitive et de la Modélisation Connexionniste ”.(Reading acquisition : new insights from cognitive neuropsychology and connectionist modeling). Université Pierre Mendès France, Grenoble, France. |
| 1988 | Ph.D in Clinical Sciences (Neuropsychology as an option). Faculty of Medecine, University of Montréal, CANADA. (Supervisor: Pr. Yves Joanette). |
| 1983 | Diploma of Advanced Studies (D.E.A.) in Neurosciences. Science Faculty of Luminy, Université d'Aix-Marseille, France. (Supervisor: Michel Poncet, MD). |
| 1982 | Master in Experimental Psychology. Arts Faculty. Université d'Aix-Marseille, France. (Supervisors: Michel Poncet, MD and Claude Bastien, Pr). |
| 1981 | Degree in Psychology. Arts Faculty. Université d'Aix-Marseille, FRANCE. |
| 1980 | D.E.U.G. in Psychologie. Arts Faculty. Université d'Aix-Marseille, FRANCE. |
| 1977 | Speech therapy qualification. Faculty of Medecine, Université d'Aix-Marseille. France. |
| 1974 | Baccalauréat ès sciences |
| 1982 | Grants from the « Fondation de la vocation » |
| 1983-1985 | Grants from the « Fondation Fyssen » |
| 1985-1987 | Grants from the « Entraide Universitaire Mondiale du Canada » |
The VA span disorder extends to non verbal material
Lobier, M., Zoubrinetzky , R. & Valdois, S. (2012). The VA span deficit in developmental dyslexia is visual not verbal. Cortex, 48, 6, 768-773. (IF: 6.08). (pdf)
Some behavioural data against the phonological interpretation of the disorder :
Valdois, S., Lassus-Sangosse, D. & Lobier, M. (2012). Poor letter string processing in developmental dyslexia : What visual-to-phonological code mapping disorder. Dyslexia, 18,(2), 77-93. (pdf)
Neurobiological findings in support of the non phonological nature of the VA span :
Lobier, M., Peyrin, C., LeBas, J.P. & Valdois, S. (2012). Pre-orthographic character string processing and parietal cortex: a role for visual attention in reading. Neuropsychologia, 50, 9, 2195-2204. (pdf)
The superior parietal regions as the neural correlates of the VA span
Lobier, M., Peyrin, C., LeBas, J.P. & Valdois, S. (2012). Pre-orthographic character string processing and parietal cortex: a role for visual attention in reading. Neuropsychologia, 50, 9, 2195-2204. (pdf)
The SPLs are underactivated in dyslexic individuals
Peyrin, C., Démonet, J.F., Baciu, M., Le Bas, JF & Valdois, S. (2011) Superior parietal lobe dysfunction in a homogeneous group of dyslexic children with a single visual attention span disorder. Brain & Language, 118, 128-138. (pdf)
Evidence for sub-groups characterized by different cognitive disorders
Bosse, M.L., Tainturier, M.J. & Valdois, S. (2007). Developmental dyslexia: the visual attention span deficit hypothesis. Cognition, 104, 198-230.
Evidence that different cognitive disorders relate to different brain dysfunctions
Peyrin, C., Lallier, M., Démonet, J.F., Baciu, M., Le Bas, J.F. & Valdois, S. (2012). Neural dissociation of phonological and visual attentional span disorders in developmental dyslexia: fMRI evidence from two case reports. Brain & Language, 120(3), 381-394. (pdf)
Why a relationship?
Valdois, S., Bosse, M.L. & Tainturier, M.J. (2004). Cognitive correlates of developmental dyslexia : Review of evidence for a selective visual attentional deficit. Dyslexia, 10, 1-25.(pdf)
VA span abilities are an independent predictor of reading performance
Bosse, M.L. & Valdois, S. (2009). Influence of the visual attention span on child reading performance: a cross-sectional study. Journal of Research in Reading, 32, 2, 230-253. (pdf)
VA span predicts spelling performance in typical children
Valdois, S. & Bosse, M.L. (soumis). The visual attention span basis of orthographic knowledge acquisition.
Simultaneous processing of the whole word letter-string improves orthographic learning
Bosse, M.L., Chaves, N., Largy, P. & Valdois, S. (soumis). Orthographic learnoing during reading : the role of whole word visual processing.

