Cognition can be defined as "the act or process of knowing in the broadest sense; specifically, an intellectual process by which knowledge is gained from perception or ideas" (Webster's Dictionary). It involves learning, thinking, memory, decision-making, and being aware. It is the way we take in information about the world through the senses, process, retain and decide to act on it. The study of cognition touches on the fields of psychology, linguistics, computer science, neuroscience, mathematics, ethology and philosophy.
