About the Authors

Gilles Vandewalle

Affiliation Cyclotron Research Centre, University of Liège, Liège, Belgium

Christina Schmidt

Affiliation Cyclotron Research Centre, University of Liège, Liège, Belgium

Geneviève Albouy

Affiliation Cyclotron Research Centre, University of Liège, Liège, Belgium

Virginie Sterpenich

Affiliation Cyclotron Research Centre, University of Liège, Liège, Belgium

Annabelle Darsaud

Affiliation Cyclotron Research Centre, University of Liège, Liège, Belgium

Géraldine Rauchs

Affiliation Cyclotron Research Centre, University of Liège, Liège, Belgium

Pierre-Yves Berken

Affiliation Hololab, Department of Physics, University of Liège, Liège, Belgium

Evelyne Balteau

Affiliation Cyclotron Research Centre, University of Liège, Liège, Belgium

Christian Degueldre

Affiliation Cyclotron Research Centre, University of Liège, Liège, Belgium

André Luxen

Affiliation Cyclotron Research Centre, University of Liège, Liège, Belgium

Pierre Maquet

To whom correspondence should be addressed. E-mail: pmaquet@ulg.ac.be

Affiliations Cyclotron Research Centre, University of Liège, Liège, Belgium, Department of Neurology, Centre Hospitalier Universitaire de Liège (CHU), Liège, Belgium

Derk-Jan Dijk

Affiliation Surrey Sleep Research Centre, University of Surrey, Guildford, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: PM DD GV. Performed the experiments: GV VS GA AD CS GR. Analyzed the data: PM GV. Contributed reagents/materials/analysis tools: EB CD AL VS GA AD CS GR PB. Wrote the paper: PM DD GV.