Which of the following statements is true of motion parallax?

• A. Motion parallax only occurs when the observer is stationary and objects are moving.
• B. Motion parallax is a binocular cue that requires both eyes to detect depth.
• C. Motion parallax is a depth cue in which objects closer to the observer appear to move faster than objects farther away when the observer is in motion.
• D. Motion parallax refers to the tendency to perceive stationary objects as moving when viewed in peripheral vision.

Answer: (C)

Verified step by step guidance

1. Understand that motion parallax is a depth perception cue related to the relative motion of objects as the observer moves.
2. Recognize that motion parallax occurs when the observer is moving, not when the observer is stationary and objects are moving.
3. Note that motion parallax is a monocular cue, meaning it can be perceived with one eye alone, so it is not binocular.
4. Recall the key characteristic of motion parallax: objects closer to the observer appear to move faster across the visual field than objects that are farther away.
5. Evaluate each statement based on these points to identify the true description of motion parallax.