SEPs recordings. Grand-Average for 6 participants recorded at electrode Cz for the Stationnary standing condition (Top panel), Translation standing and Translation stepping conditions (Bottom panel).

<p>The vertical dotted lines indicate the vibration onset and offset, the second vertical dotted line also indicates imperative tone stimulus for step execution. For both Translation conditions, the vertical dash-dotted line indicates the translation onset (occurring 500 ms before vibration). The “foot-off” indicates the onset of the stepping movement computed on the foot vertical velocity. The scalp topography was shown at the peak negativity for the participants average in the Sationary and Translation conditions.