A teacher used distortion goggles, which shifted the wearer’s gaze 20 degrees, to demonstrate an altered perception. A student wearing the goggles initially bumped into numerous desks and chairs while walking around, but chose to wear the goggles for a half hour.

After 30 minutes, the student was able to smoothly avoid obstacles, illustrating the concept of

a. perceptual adaptation.

b. visual interpretation.

c. sensory restriction.

d. perceptual constancy.

e. binocular cues.