Table 2 Exponent (n) of the Stevens power function measured (mean ± SEM)

0.78 ± 0.04

0.77 ± 0.02

0.75 ± 0.03

1.08 ± 0.04⁽³⁾

1.02 ± 0.08⁽³⁾

0.96 ± 0.06⁽²⁾

0.84 ± 0.04

0.88 ± 0.06

0.97 ± 0.07

0.96 ± 0.05⁽¹⁾

1.01 ± 0.08⁽¹⁾

0.97 ± 0.06⁽¹⁾

0.78 ± 0.05

0.88 ± 0.08

0.91 ± 0.12

0.89 ± 0.05⁽¹⁾

1.01 ± 0.04⁽¹⁾

0.94 ± 0.08

0.91 ± 0.04

0.88 ± 0.11

0.93 ± 0.10

1.09 ± 0.06⁽¹⁾

1.09 ± 0.07⁽²⁾

0.96 ± 0.06