AP Psychology Practice Test 2026 - Free AP Psychology Practice Questions and Study Guide

The opponent-process theory of color vision suggests that our color perception is created by receptors that work in pairs and oppose each other. This is in contrast to option A, which suggests that color perception is created by three types of cones sensitive to single wavelengths. Option C is incorrect because while the vibration of objects can affect our perception of color, it is not the main determining factor. Option D is also incorrect because while brightness of light can impact our perception of color, it is not the primary process involved. The opponent-process theory focuses specifically on how our neurons in the visual system create the perception of color.