What determines where we look? Theories of attentional guidance hold that image features
and task demands govern fixation behavior, while differences between observers are
interpreted as a “noise-ceiling” that strictly limits predictability of fixations. However, recent
twin studies suggest a genetic basis of gaze-trace similarity for a given stimulus. This leads
to the question of how individuals differ in their gaze behavior and what may explain these
differences. Here, we investigated the fixations of> 100 human adults freely viewing a large …

… To test the consistency of individual salience differences across independent sets of
images, we 86 probed their reliability across 1000 random (half-)splits of 700 images. We
found consistent 87 … (b) 584 Correlation matrix for individual differences along five
semantic dimensions (left hand side; note 585 that the labels for emotional and neutral
faces were collapsed for this analysis). Colour indicates 586 pairwise Pearson correlation
coefficients as indicated by the bar. Motion and Face are positively 587 correlated with each …