In the context of visual stimuli, the terms brightness or dullness refer to which attribute of color?

• A. Value (or lightness)
• B. Saturation
• C. Hue
• D. Contrast

Answer: (A)

Verified step by step guidance

1. Understand that color can be described using three main attributes: hue, saturation, and value (or lightness).
2. Hue refers to the type of color itself, such as red, blue, or green.
3. Saturation describes the intensity or purity of the color, indicating how vivid or dull it appears.
4. Value (or lightness) refers to the brightness or dullness of the color, indicating how light or dark the color is.
5. Therefore, when discussing brightness or dullness in visual stimuli, the attribute being referred to is the value (or lightness) of the color.