Cognition is the process by which the sensory input is transformed, reduced, elaborated, stored, recovered, and used.[1] In science, cognition is the mental processing that includes the attention of working memory, comprehending and producing language, calculating, reasoning, problem solving, and decision making. Various disciplines, such as psychology, philosophy and linguistics all study cognition. However, the term's usage varies across disciplines; for example, in psychology and cognitive science, "cognition" usually refers to an information processing view of an individual's psychological functions. It is also used in a branch of social psychology called social cognition to explain attitudes, attribution, and groups dynamics.[2] In cognitive psychology and cognitive engineering, cognition is typically assumed to be information processing in a participant’s or operator’s mind or brain.[3]