One of the most significant intellectual developments of recent decades has been the birth of an exciting new interdisciplinary field known as Cognitive Science. Researchers in Psychology, Linguistics, Computer Science, Philosophy, and Neuroscience realized that they were asking many of the same questions about the nature of human cognition and that they had developed complementary and potentially collaborative methods of investigation. Cognitive Science deals with cognitive processes related to perception and knowledge, so it is the science of the mind. Cognitive scientists seek to understand processes such as perception, thinking, memory, language comprehension, learning, and other psychological phenomena. Their research is characterized by remarkable variety. This research includes observing children, programming computers to solve complex problems, analyzing the nature of meaning, and studying the principles that govern neural circuits in the brain.