Rothkegel et al. 26 Figure 8 . Mean horizontal distance to the starting position for all 8 combinations of image type and starting position, for the 4 different scanpath models and experimental data. In all but one condition (left-focus image with left starting position), an overshoot of the mean position to the image side opposite to the starting position is visible in the experimental data. This overshoot was reproduced by the dynamical SceneWalk model that implements inhibitory tagging. is a lot longer than the saccade amplitude effects, which were limited to the very first saccade of the observers’ scanpaths. Second, for almost all experimental conditions the MHD over time is characterized by a strong overshoot of the midline into the image side opposite to the starting position before reaching a stable value. This effect lends support to a foraging strategy that actively moves the gaze to unexplored image regions although on a shorter time scale a high number of return saccades suggests the opposite. Next, we analyzed computational models that can predict human scanpaths. Random Balanced Pattern Left Focus Right Focus 0 3 6 9 12 15 18 0 3 6 9 12 15 18 Star ting Left Starting Right 0 2500 5000 0 2500 5000 0 2500 5000 0 2500 5000 Time [ms] Distance to Starting Position [°] Model T ype Exper imental Data Gauss Model Scene W alk Model Scene W alk Model Reduced Inhibition Density Model Saccadic Momentum Model