Optic Flow Is a Critical Cue to Depth When a Person

Multiple Choice

Optic flow is a critical cue to depth when a person is driving, though it also operates, of course, when a person moves slowly through a scene. The objects and surfaces near the point toward which the person is heading is called _____, which move(s) outward slowly in the retinal image.

A) motion parallax
B) cast shadows
C) focus of expansion
D) linear perspective