Working memory
The process of learning a second language or "L2," among older learners differs from younger learners because of their working memory. Working memory, also connected to fluency because it deals with automatic responses, is vital to language acquisition. This happens when information is stored and manipulated temporarily. During working memory, words are filtered, processed, and rehearsed, and information is stored while focusing on the next piece of interaction. These false starts, pauses or repetitions found in fluency assessments, can also be found within one's working memory as part of communication.