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Age-related effects of spatial contiguity and interference on coding performance.

J T Erber

    Journal of Gerontology
    |September 1, 1986
    PubMed
    Summary

    Older adults struggle with coding tasks due to interference from irrelevant stimuli, unlike younger adults. However, older adults show greater improvement with practice, especially early on.

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    Area of Science:

    • Cognitive Psychology
    • Human Factors
    • Gerontology

    Background:

    • Coding tasks are common in various professions and require cognitive abilities that may decline with age.
    • Understanding age-related differences in performance on such tasks is crucial for optimizing work environments and training.

    Purpose of the Study:

    • To examine how spatial arrangement and irrelevant stimuli affect coding performance in young and older adults.
    • To determine if interference contributes to age-related difficulties in coding tasks.

    Main Methods:

    • Participants (young and older adults) performed coding tasks under varying conditions of spatial contiguity and irrelevant stimuli.
    • Performance was measured by coding speed and accuracy.
    • Practice effects over multiple trials were also assessed.

    Main Results:

    • Younger adults coded significantly faster than older adults.
    • Older adults' performance was impaired by irrelevant stimuli, regardless of spatial arrangement.
    • Spatial contiguity did not affect performance in either age group.
    • Both groups improved with practice, with older adults showing greater improvement, particularly in early trials.

    Conclusions:

    • Interference from irrelevant stimuli appears to be a key factor in older adults' coding difficulties.
    • Age-related declines in coding performance may be partially explained by increased susceptibility to interference.
    • While older adults are more susceptible to interference, they demonstrate a significant capacity for learning and improvement on coding tasks through practice.

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