Notes
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It's a model of memory proposed in 1968 by Richard Atkinson and Richard Shiffrin.
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It asserts that human memory has three separate components.
- A sensory register, where sensory information enters memory.
 - A short-term memory that receives and holds information from the sensory register and the long-term memory.
 - A long-term memory, where information that has been rehearsed in the short-term memory is held indefinitely.