Changes in the Distribution of Visual Attention Associated with Lower-Body and Back-Support Exoskeleton Use During Lifting Task

Abstract

The spatial distribution of attention helps individuals focus on specific areas or objects in space, allowing them to perform tasks safely and effectively. Exoskeleton use can introduce new tactile and proprioceptive sensory experiences, which may affect visuospatial attention. This study examined whether using an industrial exoskeleton during lifting tasks affected visuospatial attentional performance and gaze distribution across the visual field using the Attentional Visual Field task and eye-tracking measures. Results indicate that exoskeleton use led to a loss of upper field advantage in attentional RT performance. A similar, non-significant trend was observed with eye-tracking data, with increased gazes directed lower during exoskeleton use. This suggests that exoskeletons may alter the spatial distribution of attention, potentially shifting attention toward the region of exoskeleton support. Such shifts in visuospatial attention could impair the detection of critical information in areas where attention is reduced, having significant implications for task performance and safety.