For comparison, the results of the beam lobe model estimation are also presented, based on the approach of a spatial moving least squares (MLS) method [21].
In this paper, we weight the kriging variance with another criterion, giving greater sampling importance to locations exhibiting significant spatial roughness that is computed by a spatial moving average window.
Time to complete the trial and the search strategy were also recorded: random, unsystematic hole searches with crossings through the maze center; serial, systematic hole searches (every hole or every other hole) in a clockwise or counterclockwise direction; and spatial, moving directly to the target hole or to an adjacent hole before visiting the target.
The three tone sequences contained different combinations of FM and spatial motion: (i) moving FM (Mo + FM); (ii) stationary FM (Stat + FM); and (iii) moving steady state with no FM (Mo + nonFM).
The true chirp pattern is made up of concentric circles with increasing spatial frequency moving away from the center.
The model is based on the concept of a hypothetical spatial wave moving through the cavitation region.
To detect the extent to which the HZ undergoes significant spatial changes, moving split-window and inflection point tests are conducted.
For a fixed global velocity, spatial frequencies moving more than half of their period per frame cause temporal aliasing [17].
For a fixed global velocity, spatial frequencies moving more than half of their period per frame may cause temporal aliasing [33].
For this reason, we extended the model to operate using covert attention in which fixation is maintained at the centre of the scene and the entire scene is present on the retina at all times but the focus of spatial attention moves.
