Atkinson-Shiffrin Model

Definition

The Atkinson-Shiffrin Model is a framework that explains how information is processed and stored in the human memory system. It divides memory into three distinct stages: sensory memory, short-term memory, and long-term memory, illustrating how information transitions from one stage to another through processes like attention and rehearsal.

5 Must Know Facts For Your Next Test

1. The Atkinson-Shiffrin Model proposes that sensory memory captures fleeting impressions of sensory input, which can then be selectively attended to and transferred to short-term memory.
2. Short-term memory has a limited capacity, often described as the 'magic number' 7±2 items, meaning most people can hold about 5 to 9 pieces of information at once.
3. Rehearsal is key for transferring information from short-term to long-term memory; this can involve repeating the information or using mnemonic devices to aid retention.
4. Long-term memory can be further divided into explicit (declarative) and implicit (non-declarative) memory, each serving different functions in storing knowledge and experiences.
5. The model has been foundational in understanding memory processes, though later research has expanded on it by exploring concepts like working memory and the roles of different types of encoding.

Review Questions

• How does the Atkinson-Shiffrin Model illustrate the process of moving information from sensory memory to long-term memory?
  • The Atkinson-Shiffrin Model shows that information initially enters sensory memory, where it is held briefly before being processed. If the information captures attention, it can move into short-term memory for further analysis. Through rehearsal and encoding, this information can eventually transition into long-term memory for more permanent storage. This step-by-step process highlights the importance of attention and rehearsal in effectively transferring information within the memory system.
• Evaluate the strengths and limitations of the Atkinson-Shiffrin Model in explaining human memory processing.
  • One strength of the Atkinson-Shiffrin Model is its clear structure that distinguishes between different stages of memory, making it easy to understand how information is processed. However, its limitations include oversimplification of complex processes such as working memory, which involves more active manipulation of information than suggested by the model. Additionally, it does not adequately account for the role of factors like emotion and context in influencing how memories are formed and retrieved.
• Synthesize the Atkinson-Shiffrin Model with modern theories of memory to propose an integrated understanding of how we process information.
  • To create a comprehensive understanding of memory processing, we can integrate the Atkinson-Shiffrin Model with contemporary theories such as Baddeley's Working Memory Model. While the Atkinson-Shiffrin Model outlines a linear progression through sensory, short-term, and long-term stages, modern theories emphasize the dynamic interactions within working memory components like the phonological loop and visuospatial sketchpad. This synthesis acknowledges that active processing occurs alongside storage stages, highlighting the complexity of how we encode, store, and retrieve memories in real-world situations.

Related terms

Sensory Memory: The initial stage of memory that briefly holds incoming sensory information, such as sights and sounds, for a fraction of a second.

Short-Term Memory: A temporary storage system that holds a limited amount of information for a short duration, typically around 15-30 seconds without rehearsal.

Long-Term Memory: The stage of memory where information is stored more permanently and can be retrieved over long periods, encompassing both explicit and implicit memories.