We measured the minimum transient change of length of a bimanually hand-held bar that could be detected. A bimanual haptic interface was used to haptically render the bar in a static condition and two dynamic conditions involving discrete movements. The detection thresholds were much lower in the static (< 2 mm) than in the dynamic conditions (> 10 mm). This finding suggests that our proprioceptive acuity markedly decreases during movement.
Size-Change Detection Thresholds of a Hand-Held Bar at Rest and during Movement
SANGUINETI, VITTORIO
2010-01-01
Abstract
We measured the minimum transient change of length of a bimanually hand-held bar that could be detected. A bimanual haptic interface was used to haptically render the bar in a static condition and two dynamic conditions involving discrete movements. The detection thresholds were much lower in the static (< 2 mm) than in the dynamic conditions (> 10 mm). This finding suggests that our proprioceptive acuity markedly decreases during movement.
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