[1] Vrije Univ Brussel, Ctr Neurosci, AIMS Lab, UZ Brussel, Pl Laan 2, B-1050 Brussels, Belgium
[2] UZ Brussel, Dept Phys & Rehabil Med, Brussels, Belgium
[3] UCL, Wellcome Trust Ctr Neuroimaging, London, England
[4] Natl Multiple Sclerosis Ctr, Dept Rehabil, Melsbroek, Belgium
[5] Katholieke Univ Leuven, Dept Rehabil Sci, Leuven, Belgium
[6] UZ Brussel, Dept Radiol, Brussels, Belgium
[7] Natl Multiple Sclerosis Ctr, Neurol Dept, Melsbroek, Belgium
[8] UZ Brussel, Neurol Dept, Brussels, Belgium
[9] Vrije Univ Brussel, Ctr Neurosci, Brussels, Belgium
[10] Vrije Univ Brussel, Dept Elect & Informat ETRO, Brussels, Belgium
[11] Univ Oxford, St Edmund Hall, Oxford, England