Three stage memory model including sensory memory, short-term memory, and long-term memory.

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Three stage memory model including sensory memory, short-term memory, and long-term memory.

The main idea here is that memory consists of distinct storage places that information moves through: a sensory register that holds fleeting impressions, a short-term store with limited capacity, and a long-term store for information kept much longer. This three-stage view is exactly what the multi-store model (also known as the Atkinson–Shiffrin model) proposes. It explains why we can briefly hold a lot of sensory input, select what we pay attention to and rehearse, and gradually transfer important bits into long-term memory for later retrieval. It also ties in how information is kept in short-term memory via rehearsal and how it can fade or be replaced unless transferred. Other models don’t present memory as this clean sequence of three stores. The working memory model reconfigures short-term memory into several components with a central executive, rather than a separate sensory/short-term/long-term sequence. Levels of processing focuses on how deeply we encode information rather than how memory is structured into stores. Encoding specificity centers on how retrieval depends on matching contexts or cues, not on a three-store architecture.

The main idea here is that memory consists of distinct storage places that information moves through: a sensory register that holds fleeting impressions, a short-term store with limited capacity, and a long-term store for information kept much longer. This three-stage view is exactly what the multi-store model (also known as the Atkinson–Shiffrin model) proposes. It explains why we can briefly hold a lot of sensory input, select what we pay attention to and rehearse, and gradually transfer important bits into long-term memory for later retrieval. It also ties in how information is kept in short-term memory via rehearsal and how it can fade or be replaced unless transferred.

Other models don’t present memory as this clean sequence of three stores. The working memory model reconfigures short-term memory into several components with a central executive, rather than a separate sensory/short-term/long-term sequence. Levels of processing focuses on how deeply we encode information rather than how memory is structured into stores. Encoding specificity centers on how retrieval depends on matching contexts or cues, not on a three-store architecture.

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