Who was the major contributor to Cognitive Psychology?

One of the major contributors to cognitive psychology is Ulric Neisser, who is often referred to as the "father of cognitive psychology." His seminal book, "Cognitive Psychology," published in 1967, helped define the field and emphasized the study of mental processes such as perception, memory, and problem-solving. Neisser's work integrated insights from various disciplines, including psychology, linguistics, and Artificial Intelligence, laying the groundwork for future research in cognitive science.