About the Authors
Coma Science Group, Cyclotron Research Centre and Neurology Department, University and University Hospital of Liège, Liège, Belgium
Cognitive and Behavioral Neurosciences Centre, University of Liège, Liège, Belgium
The authors have declared that no competing interests exist.
Conceived and designed the experiments: MT SB HD SL AV. Performed the experiments: MT VCV. Analyzed the data: MT SB SL DL. Wrote the paper: MT VCV SB HD DL SL AV.