Perceiving objects as unchanging even as illumination and retinal images change is known as

A) interposition.
B) blindsight.
C) perceptual constancy.
D) parallel processing.

Perceptual Constancy

The brain's ability to recognize that objects are unchanging (in shape, size, brightness, or color) despite shifts in environment or perspective.

Illumination

The provision of light, enabling visibility in an environment, or the state of being lit with light.

Blindsight

A phenomenon in which individuals with damage to their primary visual cortex are capable of responding to visual stimuli that they do not consciously see.