Ulric Neisser was a prominent American psychologist known as the 'father of cognitive psychology,' who significantly influenced the Cognitive Revolution in the mid-20th century. He introduced the concept of 'cognitive psychology' in his 1967 book, emphasizing the study of mental processes such as perception, memory, and problem-solving. Neisser's work helped shift the focus of psychology from behaviorism to understanding internal mental activities, fundamentally changing how researchers approached the study of the mind.