Perceptual constancy can maintain stable perception across changes in which factor?

Perceptual constancy can maintain stable perception across changes in which factor?

• A. Distance
• B. Lighting
• C. Color
• D. Size

Answer: (B)

Perceptual constancy describes our brain’s ability to keep seeing stable properties of objects even when the sensory input changes. When lighting changes, the illumination can alter the wavelengths and intensity of the light that reaches our eyes, which would otherwise make an object look different. The perceptual system compensates for this, so we still perceive the object’s color as the same across different lighting conditions (color and brightness constancy). This is why you can recognize a familiar color under sunlight, lamp light, or shaded light. Among the factors listed, changes in lighting directly test this stability because it’s the lighting that would most alter the retinal signal unless constancy mechanisms are at work.

Perceptual constancy describes our brain’s ability to keep seeing stable properties of objects even when the sensory input changes. When lighting changes, the illumination can alter the wavelengths and intensity of the light that reaches our eyes, which would otherwise make an object look different. The perceptual system compensates for this, so we still perceive the object’s color as the same across different lighting conditions (color and brightness constancy). This is why you can recognize a familiar color under sunlight, lamp light, or shaded light. Among the factors listed, changes in lighting directly test this stability because it’s the lighting that would most alter the retinal signal unless constancy mechanisms are at work.