What phenomenon explains the illusion created by rapid sequences of related still images?

What phenomenon explains the illusion created by rapid sequences of related still images?

• A. Illusion
• B. Persistence of Vision
• C. Phi Phenomenon
• D. Continuity

Answer: (B)

Persistence of vision is the lingering trace of a visual image in the eye and brain for a brief moment after it has changed. When related still frames are shown rapidly, that brief memory overlaps with the next frame, so the sequence reads as smooth motion rather than jumpy images. This is the mechanism behind movies, flipbooks, and other rapid-image sequences. The phi phenomenon is a related idea about motion perception from alternating lights, but the general illusion of motion from quick still frames comes from persistence of vision. Continuity refers to smooth transitions in sequences, not the perceptual process that creates the illusion.

Persistence of vision is the lingering trace of a visual image in the eye and brain for a brief moment after it has changed. When related still frames are shown rapidly, that brief memory overlaps with the next frame, so the sequence reads as smooth motion rather than jumpy images. This is the mechanism behind movies, flipbooks, and other rapid-image sequences. The phi phenomenon is a related idea about motion perception from alternating lights, but the general illusion of motion from quick still frames comes from persistence of vision. Continuity refers to smooth transitions in sequences, not the perceptual process that creates the illusion.