Cognitive psychology is the study of mental processes such as "attention, language use, memory, perception, problem solving, creativity, and thinking." Much of the work derived from cognitive psychology has been integrated into various other modern disciplines of psychological study, including educational psychology, social psychology, personality psychology, abnormal psychology, developmental psychology, and economics. The the activity of the cognitive processes give rise to cognitions, the product of cognition, which are the psychological, mental experiences that are the basis of our knowledge about the world and are the content of awareness and consciousness.