Reinforcement of movement speed through speed-selective deep brain stimulation in Parkinson’s disease - Alessia Cavallo; Richard M. Köhler; Johannes L. Busch; Jeroen G.V. Habets; Timon Merk; Patricia Zvarova; Jojo Vanhoecke; Ana Luisa de A. Marcelino; Natasha Darcy; Damian M. Herz; Gerd-Helge Schneider; Katharina Faust; et al. (Brain Stimulation)