FIG. 6.
In a particle filter model, the time constant of the angular velocity estimate (velocity storage) also depends on 2 parameters: the noise in the canal signal (σV) and the variability of the angular velocity prior (σΩ). The red dashed line illustrates the actual angular velocity and the blue lines show the time course of the angular velocity estimate. Values of canal noise (σV) increase on the columns from left to right from 5 to 20°/s. Values for prior variability (σΩ) increase on the rows from bottom to top from 15 to 60°/s. The time constant for velocity storage depends (approximately) on the ratio between σV and σΩ. The grayscale represents the variability associated with the estimate.