Acknowledgments

This research was supported by a grant of the Agence Nationale de la Recherche (ANR-ZR81) and by a grant of the Conseil Scientifique de Recherche, Le Vinatier (CSR U03). V. Chambon was supported by scholarships from the French Ministry of Research. This research was approved by the local Ethical Committee (B80631-60). The authors report no competing interests. We are grateful to Mathilde Vernet, Juliette Sablier and Mariia Kaliuzhna for their help in preparing the stimuli. We also gratefully acknowledge Mrs Ghislaine Bailly, Drs Olivier Martin and Caroline Demily, and Pr. Jean-Louis Terra for their help in the inclusion of patients.