Social cognitive theory (SCT), used in psychology, education, and communication, holds that portions of an individual's knowledge acquisition can be directly related to observing others within the context of social interactions, experiences, and outside media influences. This theory was advanced by Albert Bandura as an extension of his social learning theory. The theory states that when people observe a model performing a behavior and the consequences of that behavior, they remember the sequence of events and use this information to guide subsequent behaviors. Observing a model can also prompt the viewer to engage in behavior they already learned. In other words, people do not learn new behaviors solely by trying them and either succeeding or failing, but rather, the survival of humanity is dependent upon the replication of the actions of others. Depending on whether people are rewarded or punished for their behavior and the outcome of the behavior, the observer may choose to replicate behavior modeled. Media provides models for a vast array of people in many different environmental settings. Social cognitive theory (SCT), used in psychology, education, and communication, holds that portions of an individual's knowledge acquisition can be directly related to observing others within the context of social interactions, experiences, and outside media influences. This theory was advanced by Albert Bandura as an extension of his social learning theory. The theory states that when people observe a model performing a behavior and the consequences of that behavior, they remember the sequence of events and use this information to guide subsequent behaviors. Observing a model can also prompt the viewer to engage in behavior they already learned. In other words, people do not learn new behaviors solely by trying them and either succeeding or failing, but rather, the survival of humanity is dependent upon the replication of the actions of others. Depending on whether people are rewarded or punished for their behavior and the outcome of the behavior, the observer may choose to replicate behavior modeled. Media provides models for a vast array of people in many different environmental settings. The conceptual roots for social cognitive theory come from Edwin B. Holt and Harold Chapman Brown's 1931 book theorizing that all animal action is based on fulfilling the psychological needs of 'feeling, emotion, and desire'. The most notable component of this theory is that it predicted a person cannot learn to imitate until they are imitated. In 1941, Neal E. Miller and John Dollard presented their book with a revision of Holt's social learning and imitation theory. They argued four factors contribute to learning: drives, cues, responses, and rewards. One driver is social motivation, which includes imitativeness, the process of matching an act to an appropriate cue of where and when to perform the act. A behavior is imitated depending on whether the model receives a positive or negative response consequences. Miller and Dollard argued that if one were motivated to learn a particular behavior, then that particular behavior would be learned through clear observations. By imitating these observed actions the individual observer would solidify that learned action and would be rewarded with positive reinforcement. The proposition of social learning was expanded upon and theorized by Canadian psychologist Albert Bandura. Bandura, along with his students and colleagues conducted a series of studies, known as the Bobo doll experiment, in 1961 and 1963 to find out why and when children display aggressive behaviors. These studies demonstrated the value of modeling for acquiring novel behaviors. These studies helped Bandura publish his seminal article and book in 1977 that expanded on the idea of how behavior is acquired, and thus built from Miller and Dollard's research. In Bandura's 1977 article, he claimed that Social Learning Theory shows a direct correlation between a person's perceived self-efficacy and behavioral change. Self-efficacy comes from four sources: 'performance accomplishments, vicarious experience, verbal persuasion, and physiological states'. In 1986, Bandura published his second book, which expanded and renamed his original theory. He called the new theory social cognitive theory. Bandura changed the name to emphasize the major role cognition plays in encoding and performing behaviors. In this book, Bandura argued that human behavior is caused by personal, behavioral, and environmental influences. In 2001, Bandura brought SCT to mass communication in his journal article that stated the theory could be used to analyze how 'symbolic communication influences human thought, affect and action'. The theory shows how new behavior diffuses through society by psychosocial factors governing acquisition and adoption of the behavior. In 2011, Bandura published a book chapter -- The Social and Policy Impact of Social Cognitive Theory—to extend SCT'S application in health promotion and urgent global issues, which provides insight into addressing global problems through a macro social lens, aiming at improving equality of individuals' lives under the umbrellas of SCT. SCT has been applied to many areas of human functioning such as career choice and organizational behavior as well as in understanding classroom motivation, learning, and achievement. Social Cognitive Theory originated in psychology, but based on an unofficial November 2013 Google Scholar search, only 2 percent of articles published on SCT are in the pure psychology field. About 20 percent of articles are from Education and 16 percent from Business. The majority of publications using SCT, 56 percent, come from the field of Applied Health Psychology. The majority of current research in Health Psychology focuses on testing SCT in behavioral change campaigns as opposed to expanding on the theory. Campaign topics include: increasing fruit and vegetable intake, increasing physical activity, HIV education, and breastfeeding.