the signals hitting our sensory receptors are often incomplete or distorted, and our sensory receptors don’t function perfectly. There are other cases in which what our receptors might tell us about the world is wrong and the brain needs to step in. Rock further showed how our perceptual system uses logical inferences to help us perceive the world. Perception doesn’t just happen—it entails a string of logical inferences and is the outcome of unconscious inference, problem solving, and outright guesses about the structure of the physical world.
