Article Figures & Data
Figures
- Figure 1.
Overview of the experimental setup. A, Side view of a subject holding the piezoelectric contactors with a flat stick. B, Bird's eye view of a subject's fingers holding the stick. C, Bird's eye view of the pointer set that was used for reporting the perceptual experiences.
- Figure 2.
Stimulation with a stick (experiment 1). A, Three mechanical pulses (P1, P2, and P3) were delivered to the subject's index fingers via a stick. P1 and P2 were delivered at the first location (L1) and P3 at the second (L2). The ISI was 800 ms between P1 and P2 and 50 or 80 ms between P2 and P3. B, The colored dots printed on the stick show a typical report by the subjects. A blue, green, or orange dot denotes the point was reported as P1, P2, or P3, respectively. C, D, Mean perceptual deviations of the tapped locations from the actual stimulus point to the opposite-side point. The error bars denote the SEM across subjects. In each data plot, we pooled the measurement values in the cases that L1 was allocated to the right index finger and L1 to the left index finger because each data point did not show a difference between the two cases (p ≥ 0.44, uncorrected paired t tests).
- Figure 3.
Stimulation without a stick (experiment 2). A, The pulse sequence in this experiment was identical to that used in experiment 1 (see Fig. 2A). B, Subjects received the pulse sequence via small plates, instead of a stick, held on each of the ventral pads of the index fingers. C, D, Mean perceptual deviations of the tapped locations from the actual stimulus point to the opposite-side point.
Additional Files
Supplemental Data
Files in this Data Supplement:
- supplemental material - Supplemental Table
