Objective Evaluation of Obstacle Perception Using Spontaneous Body Movements of Blind People Evoked by Movements of Acoustic Virtual Wall

<div>Wall movement presented to the participants. The wall reciprocated (approached and receded) six times at a linear distance of between 0.2 and 0.8 m in front of each participant within a 20 s period. The body movements were measured during the last five reciprocations.</div>

Human Behavior and Emerging Technologies

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Figure 2

Figure 2: Objective Evaluation of Obstacle Perception Using Spontaneous Body Movements of Blind People Evoked by Movements of Acoustic Virtual Wall 