Extinction: A. In evolution theory, extinction is the process by which a species or other taxonomic group ceases to exist. It is a natural part of the evolutionary process, and has occurred to many species throughout Earth's history. - B. In psychology, extinction is a process by which a learned behavior is weakened or eliminated by no longer reinforcing it._____________Annotation: The above characterizations of concepts are neither definitions nor exhausting presentations of problems related to them. Instead, they are intended to give a short introduction to the contributions below. – Lexicon of Arguments. |