The video tutorial explores the concept of memory, defined by the American Psychological Association as the ability to retain and recall past experiences. It introduces the three processes of memory: registration, storage, and retrieval. The focus is on the two process model by Atkinson and Shiffrin, which includes short and long term memory. Sensory memory captures stimuli, transferring relevant information to short term memory, which can hold 7±2 chunks of information for 15-30 seconds. Rehearsal transfers information to long term memory. The video concludes by acknowledging the model's simplicity and the existence of more complex memory theories.

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