The Phonological Loop is the part of our working memory system that handles auditory and verbal information, including language and music. It consists of two components: storage, where we briefly hold information in our short-term memory, and rehearsal, a mechanism by which we maintain and strengthen our memory of the information.
Research suggests that information held in the loop only lasts for 2 seconds unless it’s processed via rehearsal. You use the phonological loop whenever you try to memorize a telephone number or access code. You repeat the numbers to yourself in order, either saying them out loud or under your breath, to help you remember.