Psychology is the scientific study of human behavior, mental processes, and related phenomena. One of the most fundamental questions psychologists ask is how we develop beliefs, thoughts, and feelings. There are many different theories about the nature of human psychology that have been developed over time. The three major psychological theories: Behaviorism, Cognitivism, and Social Constructionism.
The Behaviorist theory is defined as a belief that humans are a blank slate who acquire all their behaviors through conditioning from their environment. The Cognitivist perspective defines cognition as information processing in the brain which can be explained by using mathematical models like algorithms or computer programs.