About the Authors

Martine Roussel

roussel.martine@chu-amiens.fr

Affiliation Department of Neurology and Laboratory of Functional Neurosciences EA 4559, SFR CAP-Santé (FED 4231), University Hospital of Amiens, Amiens, France

Olivier Martinaud

Affiliation Department of Neurology, University Hospital of Rouen, Rouen, France

Hilde Hénon

Affiliation Department of Neurology, University Hospital of Lille, Lille, France

Martine Vercelletto

Affiliation Research Memory Center, University Hospital of Nantes, Nantes, France

Claire Bindschadler

Affiliation Department of Neuropsychology and Neurorehabilitation, University hospital of Lausanne, Lausanne, Switzerland

Pierre-Alain Joseph

Affiliation Research group EA 4136 handicap and nervous system diseases, University of Bordeaux, Bordeaux, France

Philippe Robert

Affiliation CoBTeK Research Memory Center CHU, University of Nice Sophia Antipolis, Nice, France

Pierre Labauge

Affiliation Department of Neurology, University Hospital of Nimes, Nimes, France

Olivier Godefroy

Affiliation Department of Neurology and Laboratory of Functional Neurosciences EA 4559, SFR CAP-Santé (FED 4231), University Hospital of Amiens, Amiens, France

on behalf of the GREFEX study group

Membership of the GREFEX study group is provided in the Acknowledgments.

Competing Interests

The authors declare that no competing interests exist.

Author Contributions

Conceived and designed the experiments: OG. Performed the experiments: MR OM HH MV CB PA-J PR PL. Analyzed the data: MR OG. Contributed reagents/materials/analysis tools: OG. Wrote the paper: MR OG.