Sensation is the process by which our senses become aware of stimuli in the environment, such as sights, sounds, smells, tastes, and touches. Perception is what our brain does with this sensory information to form concepts and interpretations of these stimuli, like recognizing a tree, a voice, or the smell of baking cupcakes. However, our experiences of these stimuli result from neuronal reactions in the brain, not properties of the stimuli themselves. Each of our senses converts different types of energy, like light or sound waves, into electrochemical patterns in the brain. The brain's representations of objects do not duplicate them directly but are based on our sensory experiences.