A child is driving a bumper car in an amusement park.At the last instant he swerves to avoid a crash with another car.Which cue allows the child to sense how quickly another car is approaching?
A)The speed of the air molecules impacting on his face.
B)The rate at which his retinal image of the other car expands.
C)The peripheral cue associated with motion parallax.
D)The increasing intensity of the sound made by the other car.

Question

Quizplus · Accepted Answer

The rate at which the child's retinal image of the other car expands provides information about the relative speed and distance of the approaching car. This is known as optic flow and is an important cue for detecting motion and judging distance in the visual system. The other cues listed are not directly related to perceiving the motion of another car.

A Child Is Driving a Bumper Car in an Amusement