key term - Atkinson-Shiffrin Model

Definition

The Atkinson-Shiffrin model is a framework that describes how information is processed in the human memory system. It suggests that memory consists of three main components: sensory memory, short-term memory, and long-term memory, each serving a specific function in the retention and retrieval of information. This model highlights the flow of information through these stages, showing how memories are formed, stored, and recalled, which connects to modern cognitive psychology's understanding of memory processes and cognitive development.

5 Must Know Facts For Your Next Test

1. The Atkinson-Shiffrin model was proposed in 1968 by Richard Atkinson and Richard Shiffrin, serving as a foundational concept in cognitive psychology.
2. Sensory memory acts as a buffer for stimuli received through the senses, capturing details that are then passed to short-term memory if attended to.
3. Short-term memory has a limited capacity, often cited as 7±2 items, which impacts how much information can be processed at once.
4. Information can be transferred from short-term to long-term memory through processes such as rehearsal and encoding.
5. The model emphasizes the sequential nature of memory processing, illustrating how different types of memory work together to facilitate learning and recall.

Review Questions

• How does the Atkinson-Shiffrin model differentiate between sensory memory and short-term memory?
  • The Atkinson-Shiffrin model distinguishes between sensory memory and short-term memory based on their functions and durations. Sensory memory briefly retains sensory information for a fraction of a second, allowing individuals to process immediate stimuli. In contrast, short-term memory holds information for a longer duration of about 15-30 seconds and has limited capacity, making it essential for temporarily managing information before it either decays or is transferred to long-term memory.
• What are the implications of the Atkinson-Shiffrin model on our understanding of cognitive development in children?
  • The Atkinson-Shiffrin model suggests that cognitive development in children involves improvements in the functioning of each type of memory. As children grow, their sensory memory becomes more efficient at capturing details, their short-term memory increases in capacity and duration, and they develop strategies for better encoding information into long-term memory. This model implies that educational techniques can be tailored to suit these developmental stages by focusing on enhancing memory processes.
• Evaluate how the Atkinson-Shiffrin model has influenced modern theories of memory beyond its original formulation.
  • The Atkinson-Shiffrin model has greatly influenced modern theories of memory by providing a foundational framework that researchers have built upon. It prompted further exploration into working memory, which expands on short-term memory by detailing how we actively manipulate information. Additionally, the model has led to investigations into how different types of long-term memory, such as explicit and implicit memories, function independently yet interconnectively. Researchers now use this model as a starting point to examine more complex aspects of memory storage and retrieval processes, adapting it to incorporate findings from neuroscience and cognitive science.

Related terms

Sensory Memory: A brief retention of sensory information that lasts only a few seconds and allows individuals to process incoming stimuli.

Short-Term Memory: A limited capacity system that temporarily holds information for processing and manipulation, typically lasting 15-30 seconds.

Long-Term Memory: A more permanent storage system that can hold vast amounts of information for extended periods, potentially a lifetime.