1. Department of NeurologyLaboratory for Functional Brain Diagnostics and TherapyHigh Field MR CenterMedical University of Vienna Spitalgasse 23 Vienna 1090 Austria
2. Applied Research CenterStorz Medical AG Lohstampfestrasse 8 Tägerwilen 8274 Switzerland
3. RheintalklinikOutpatient Department Manual MedicineCenter for Movement Disorders Thürachstraße 10 Bad Krozingen 79189 Germany
4. Human Motor Control SectionNINDSNIH 10 Center Drive Bethesda MD 20892‐1428 USA