Fig 1.
Example posterior distribution of source direction at different time steps during yaw rotation.
Darker areas indicate higher probabilities. The blue ‘x’ is the true source direction.
Table 1.
Averages and SDs of behavioural (B) and modelled (M) localisation performance in the passive (P) and active (A) conditions.
The performance is represented as the lateral and polar RMSE (in degrees), QE, FBC, and UDC rates (in %). Means and SDs were computed over eight (virtual) subjects. For comparison, the results from previous work are reported too [53]. N.R.: not reported.
Fig 2.
Centroid and Kent distribution for condition BP and source direction (30°, 30°).
Black dots are the individual subject responses, from which the Kent distribution was calculated.
Fig 3.
Centroids and Kent distributions of behavioural (B) and modelled (M) responses in the passive (P) and active (A) conditions, averaged over eight subjects.
The rows show the same data viewed towards the front, the right, and the back of the head. Quadrant errors were excluded.
Fig 4.
Quadrant error rates [%] of behavioural (B) and modelled (M) responses in the passive (P) and active (A) conditions, averaged over eight subjects.
The rows show the same data viewed towards the front and the back of the head.
Fig 5.
Lateral RMSE, polar RMSE and QE rate of the modelled data as a function of σitd (in units of the JND).
Blue markers are passive results, orange markers are active results. The markers and the error bars represent the mean and standard deviation over the eight modelled subjects. For reference, the dashed lines and the coloured areas show the behavioural means and standard deviations over the eight subjects, respectively.
Fig 6.
Lateral RMSE, polar RMSE and QE rate of the modelled data as a function head orientation measurement noise σH, with head control noise σu = 0° (left column) and σu = 8°.
Blue markers are passive results, orange markers are active results. The markers and the error bars represent the mean and standard deviation over the eight modelled subjects. For reference, the dashed lines and the coloured areas show the behavioural means and standard deviations over the eight subjects, respectively.
Fig 7.
Elevation gain [24] and QE rate of the modelled data as a function of σp (in degrees).
Blue markers are passive results, orange markers are dynamic results. The markers and the error bars represent the mean and standard deviation over the eight modelled subjects. For reference, the dashed lines and the coloured areas show the behavioural means and standard deviations over the eight subjects, respectively.
Fig 8.
Lateral RMSE, polar RMSE, and QE rates of the modelled data as a function of time step size Δt.
The symbols show the averages and the error bars represent ±1 SDs over the (virtual) subjects. For reference, the horizontal dashed lines show the behavioural data.