Table 2. Time constants.
| ASD | PSD | LSD | |
|---|---|---|---|
| τ1 (s) | |||
| Homo sapiens | 2.9 ± 0.5 | 2.7 ± 0.5 | 4.0 ± 0.8 |
| Macaca mulatta | 6.9 ± 1.3 | 7.7 ± 1.4 | 5.5 ± 1.0 |
| Saimiri sciureus | 7.8 ± 0.0 | 3.8 ± 0.0 | 5.6 ± 0.0 |
| τ2 (ms) | |||
| Homo sapiens | 5.0 ± 0.2 | 5.5 ± 0.2 | 4.0 ± 0.2 |
| Macaca mulatta | 2.2 ± 0.1 | 2.4 ± 0.1 | 2.2 ± 0.1 |
| Saimiri sciureus | 1.6 ± 0.1 | 1.9 ± 0.1 | 1.6 ± 0.1 |
Given are the values of the long (τ1) and short (τ2) time constants, as calculated by Ariadne for the anterior (ASD), posterior (PSD) and lateral (LSD) semicircular ducts. Reported errors as in Table 1. Low error levels for the long time constants of Saimiri sciureus are a by-product of using the average neurophysiological long time constant of this species to calibrate the shear modulus (γ) of the cupula. The latter was found to equal 1.45 ± 0.20 Pa depending on dilation or contraction of the reconstructed semicircular duct system of Saimiri sciureus. Reported errors for the long time constants of Homo sapiens and Macaca mulatta reflect the worst combinations of dilation/contraction of the duct system and the error range of γ.