About the Authors

Nils Freundlieb

Affiliation Brain Imaging and Neurostimulation (BINS) Laboratory, Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany

Stephan Philipp

Affiliation Brain Imaging and Neurostimulation (BINS) Laboratory, Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany

Susanne A. Schneider

Affiliation Schilling Section of Clinical and Molecular Neurogenetics, Department of Neurology, University of Luebeck, Luebeck, Germany

Norbert Brüggemann

Affiliation Schilling Section of Clinical and Molecular Neurogenetics, Department of Neurology, University of Luebeck, Luebeck, Germany

Christine Klein

Affiliation Schilling Section of Clinical and Molecular Neurogenetics, Department of Neurology, University of Luebeck, Luebeck, Germany

Christian Gerloff

Affiliation Brain Imaging and Neurostimulation (BINS) Laboratory, Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany

Friedhelm C. Hummel

f.hummel@uke.de

Affiliation Brain Imaging and Neurostimulation (BINS) Laboratory, Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany

Competing Interests

NF reports having received a travel grant by the "GlaxoSmithKline-Stiftung" to attend “SfN Neuroscience 2011” in Washington, D.C. There are no patents, products in development or marketed products to declare. This does not alter the authors’ adherence to all the PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: FH NF SP. Performed the experiments: NF SP. Analyzed the data: NF SP FH SS NB CK. Contributed reagents/materials/analysis tools: CK SS NB. Wrote the paper: NF SP FH CG CK SS NB.