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Related Experiment Videos

Aging, digit span, and the stimulus suffix effect

S R Parkinson, A Perey

    Journal of Gerontology
    |September 1, 1980
    PubMed
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    Memory interference from auditory stimuli decreases with larger digit spans in college students. Aging effects on short-term memory are linked to memory span factors.

    Area of Science:

    • Cognitive Psychology
    • Neuroscience
    • Human Memory

    Background:

    • The stimulus suffix effect demonstrates auditory interference in short-term memory.
    • Previous research suggests age-related memory decline is complex.

    Purpose of the Study:

    • To investigate the relationship between digit span and stimulus suffix effects.
    • To compare suffix effects in young and older adults.

    Main Methods:

    • College students and older adults participated in memory tasks.
    • Auditory stimulus suffix was presented after lists of items to remember.
    • Digit span was measured for all participants.

    Main Results:

    • Interference from the stimulus suffix decreased as digit span increased in college students.

    Related Experiment Videos

  • Suffix effects were comparable between young and older adults with similar digit spans.

    • Conclusions:

    • Memory span is a key factor in understanding age-related differences in short-term memory.
    • The influence of aging on memory tasks can be largely explained by memory span limitations.