APOE and Alzheimer disease: In contrast to the third “no distal cues” condition, performance differences between baseline and “no optic flow” conditions (return condition two) were borderline significant for hereditary but not physiological risk factors (two‐way FH x APOE ε4 F1,77 = 4.42, P = 0.039; post hoc pairwise tests all PTukey > 0.138; Figure 1E), indicating that the PI impairment observed across all AD risk groups related specifically to orientation cue removal.