_____ refers to a rapid series of still pictures that seem to be in motion.

• A. The autokinetic effect
• B. Stroboscopic motion
• C. The phi phenomenon
• D. The apparent distance hypothesis

Answer: (B)

Verified step by step guidance

1. Identify the key concept in the question, which is about a visual phenomenon where still images appear to be in motion.
2. Understand that this concept is related to how our brain perceives motion from a sequence of images.
3. Review the definitions of the terms provided: 'autokinetic effect', 'stroboscopic motion', 'phi phenomenon', and 'apparent distance hypothesis'.
4. Recognize that 'stroboscopic motion' refers to the perception of motion when a series of still images are shown in rapid succession, similar to how movies work.
5. Conclude that the correct term for the described phenomenon is 'stroboscopic motion', as it matches the definition of a rapid series of still pictures appearing to be in motion.