Social Foundations of Thought and Action: A Social Cognitive Theory is a landmark work in psychology published in 1986 by Albert Bandura. The book expands Bandura's initial social learning theory into a comprehensive theory of human motivation and action, analyzing the role of cognitive, vicarious, self-regulatory, and self-reflective processes in psychosocial functioning. Bandura first advanced his thesis of reciprocal determinism in Social Foundations of Thought and Action.