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Related Experiment Videos

Multiple memory systems in the processing of speech: evidence from aging

A Wingfield1, K C Lindfield

  • 1Brandeis University, Waltham, Massachusetts, USA.

Experimental Aging Research
|April 1, 1995
PubMed
Summary
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Older adults struggle more with verbatim recall of spoken information, especially with unpredictable or fast speech. Segment recall is influenced by predictability, not speech rate, with a tendency to pause at linguistic boundaries.

Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Speech Processing

Background:

  • Verbatim recall of spoken information is crucial for comprehension.
  • Age-related differences in cognitive functions, including memory and speech processing, are well-documented.
  • Understanding how factors like speech rate and predictability affect recall is important for accessibility.

Purpose of the Study:

  • To investigate age-related differences in verbatim recall of spoken prose.
  • To examine the effects of speech predictability and presentation rate on recall strategies and performance.
  • To explore the relationship between recall segmentation and linguistic structure.

Main Methods:

  • Young and older adults listened to recorded prose passages.
  • Passages varied in word predictability and speech rate.

Related Experiment Videos

  • Participants could interrupt passages at any point for segment-by-segment recall.
  • Segment sizes and recall accuracy were analyzed.

    • Main Results:

    • Both age groups selected recall segments based on predictability, not speech rate.
    • Participants tended to segment recall at linguistic constituent boundaries.
    • Elderly adults recalled segments less accurately than young adults.
    • Age differences in recall were more pronounced with faster speech and lower predictability.

    Conclusions:

    • Recall performance is modulated by linguistic predictability and presentation rate, with older adults showing greater deficits.
    • Segmentation strategies are influenced by linguistic structure, suggesting reliance on intact processing mechanisms.
    • Findings support theories of brief co-occurring memory representations in speech processing.