One of the most crucial issues in human intelligence research today is determining how the mind or brain makes sense of the world. Generally, this issue revolves around explaining how the brain forms concepts (also known as universals) or categories utilizing the extraordinary variation it experiences by way of sensory receptors processing multiple perceptual signals from the environment and within ourselves. This issue in turn is directly related to our understanding of major mechanisms by which the brain and body deal with information and form knowledge of anything at all.