Cognitive Development Part 1: Information-Processing Model
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Questions and Answers

What is the primary function of working memory according to the information-processing model?

  • Storing large amounts of information over decades
  • Encoding information into long-term memory
  • Actively holding and using information to problem-solve, make decisions, and learn new information (correct)
  • Retrieving information from long-term memory
  • How does working memory's capacity change with age?

  • Working memory capacity significantly declines with age, but this decline is greater for spatial working memory than verbal working memory (correct)
  • Working memory capacity remains constant throughout the lifespan
  • Working memory capacity significantly increases with age
  • Working memory capacity declines with age, but this decline is greater for verbal working memory than spatial working memory
  • What is the role of rehearsal in working memory?

  • Rehearsal has no effect on working memory
  • Rehearsal helps move information from working memory to long-term memory
  • Rehearsal helps keep information in working memory (correct)
  • Rehearsal is only beneficial for storing information in long-term memory, not working memory
  • How does working memory relate to age-related declines in other cognitive abilities?

    <p>Age-related declines in working memory are related to declines in storage capacity, information processing, and divided attention abilities</p> Signup and view all the answers

    How does working memory's role in the information-processing model compare to long-term memory's role?

    <p>Working memory plays a more active and critical role than long-term memory in the information-processing model</p> Signup and view all the answers

    Which type of working memory is more affected by age-related declines according to the information provided?

    <p>Spatial working memory is more affected by age-related declines than verbal working memory</p> Signup and view all the answers

    How does working memory's capacity compare to long-term memory's capacity?

    <p>Long-term memory has a significantly larger capacity than working memory</p> Signup and view all the answers

    What is the role of working memory in the encoding, storage, and retrieval processes according to the information-processing model?

    <p>Working memory plays an active and critical role in encoding, storage, and retrieval</p> Signup and view all the answers

    How does the information-processing model describe the relationship between working memory and long-term memory?

    <p>Working memory and long-term memory are interconnected, with working memory actively using information from long-term memory</p> Signup and view all the answers

    How does the information-processing model account for individual differences in working memory performance?

    <p>The information-processing model indicates that working memory performance can be counterbalanced by greater working knowledge in some situations</p> Signup and view all the answers

    Study Notes

    Information-Processing Model

    • Uses a computer metaphor to explain how people process stimuli
    • Based on three assumptions: people are active participants, both quantitative and qualitative aspects of performance can be examined, and information is processed through a series of hypothetical stages or processes

    Sensory Memory

    • A brief and almost identical representation of the stimuli that exists in the observable environment
    • Large capacity, brief retention (typically 1 second or less)
    • Generally no age differences in sensory memory

    Attention: Speed of Processing

    • How quickly and efficiently the early steps in information processing are completed
    • In aging: evidence indicates age-related slowing depends on what adults are being asked to do and task difficulty
    • Amount of beta-amyloid protein in CNS is related to the slowing of processing speed

    Attention: Processing Resources

    • The amount of attention one has to apply to a particular situation
    • Two possible reasons for decline in processing with age: inhibitory loss and attentional changes
    • Older adults may have trouble inhibiting the processing of irrelevant information
    • Task familiarity vs. ability to block out irrelevant info: performance improves with practice

    Automatic and Effortful Processing

    • Automatic processing: places minimal demands on attentional capacity, extremely difficult to change
    • Effortful processing: requires all available attentional capacity
    • Performance on tasks relying on automatic processes do not show significant age differences
    • Age differences are observed in effortful processing tasks

    Memory Processes

    • The ability to retain knowledge
    • Part of a continuum of information processing with both bottom-up and top-down processing

    Memory Processes: Working Memory

    • Working memory: actively holding and using information to problem-solve, make decisions, and learn new information
    • Active and critical role in encoding, storage, and retrieval
    • WM has a relatively small capacity, managing only a few items at a time
    • Rehearsal helps keep information in WM
    • Significantly declines with age, but varies by information and task
    • Related to declines in storage capacity, information processing, and divided attention abilities
    • Age-related declines are not universal; they are greater for spatial WM than verbal WM
    • Greater working knowledge can counterbalance declines in WM in some situations

    Memory Processes: Long-Term Memory

    • Long-term memory: aspects of memory involved in remembering extensive amounts of information over time, ranging from seconds to decades

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    Description

    Explore the Information-Processing Model in cognitive development, which uses a computer metaphor to explain how people process stimuli and is based on three key assumptions. Learn about sensory memory, stages of processing, and more in this lecture.

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