I am an experimental psychologist and work at Marshall University. Psychologists like me have long studied how our eyes and brain work to allow us to see and perceive. When we talk about the sensation of seeing, we explain how our eyes respond to light to allow us to see form and color. When we talk about perception, we describe how we recognize, interpret, and respond to what we see.
Photography, as with all art, is more than the sensation it creates and the perception that allows us to recognize a shape or object. Art causes us to stop and think. It evokes emotion, makes us reconsider the familiar, forces us to analyze the new, and allows us to create a fable to explain our reactions.