Eye-head coordination for the steering of locomotion in humans: an anticipatory synergy

摘要: We investigated head and gaze orientation in six healthy volunteers walking along 90° corner trajectories, both at light with eyes closed. found that systematically deviated toward the future direction of curved trajectory. Anticipation lead was about 1 s. Strikingly, same behaviour observed darkness. In backward (BW) locomotion trajectory (from end- to start-point), opposite direction, such forward locomotor pattern did not appear time-reversed. Orienting movements displayed higher amplitude, reproducibility time (FW) light. suggest anticipatory orienting synergies belong behavioural repertoire human navigation may reflect need prepare a stable reference frame for intended action.