Table 3.

Positive and negative skin stretch

Regression (Predicted ΔPSE Against Real ΔPSE)PSE Error [N/m]JND Error [N/m]
AccuracyIntercept [N/m]Slope [au]p-valueForce Positive (Real = 0.16)Stretch Positive (Real = 20.64)Force negative (Real = 0.06)Stretch Negative (Real = 7.81)Force positive (Real = 12.13)Stretch Positive (Real = 14.95)Force negative (Real = 12.38)Stretch Negative (Real = 14.64)
75.58 ± 0.00116.01 ± 0.510.31 ± 0.030.007 ± 0.0072.11 ± 0.37−1.73 ± 0.703.20 ± 0.18−5.40 ± 0.34−1.04 ± 0.14−2.10 ± 0.27−1.54 ± 0.22−1.64 ± 0.33
  • Bold is significant regression.