Cognitive Psychology Definition Cesar Rosaortega PSY/360 November 28, 2016 Leslie Sherlin Cognitive Psychology Definition What is the definition of cognitive psychology? According to Merriam-Webster (n.d.), cognitive psychology is a branch of psychology concerned with mental processes (as perception, thinking, learning, and memory) especially with respect to the internal events occurring between sensory stimulation and the overt expression of behavior. (Medical Dictionary). That is the medical definition according to a dictionary. However, in the following paragraphs, a more detailed discussion will help reveal a holistic definition of cognitive psychology as a science. Summary of the History of Cognitive Psychology The science of Cognitive Psychology has a...