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Vibration Influences Haptic Perception of Surface Compliance During Walking

Figure 9

Experiment 2: Psychophysical amplitude detection thresholds and response proportions at stiffness level 90 N/mm.

Top: Response proportions for all 20 subjects at two lowest vibration levels, and stiffness level 90 N/mm. Bottom: Amplitude threshold levels, displayed in dB referenced to . Subjects are sorted in order of increasing threshold (same ordering top and bottom). The dashed lines indicate the amplitudes of the vibrating stimuli used in Experiment 2. Error bars: 2 SEM.

Figure 9

doi: https://doi.org/10.1371/journal.pone.0017697.g009