Fig. 1

The CAREN High End (Motek Medical, The Netherlands) has a 6-degree of freedom (three translation axes, three rotation axes) moveable platform that is synchronized with a virtual visual scene projected on a 360° dome-shaped screen (projection resolution 1920X1080 lines). A split-belt treadmill is embedded in the platform (not operated in this study). A motion capture system (Vicon) and a pair of force plates embedded in the treadmill provide data on the participant’s spatiotemporal position during the task (sampling rate 120 Hz). The participant who performs the DOME-CTT VR adaptation (see text), is secured with safety harness, holding a wand-like pointing stick with a marker on its edge in order to control the avataric red ball and to move it towards the target ball