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Related Experiment Videos

A cross-sequential analysis of developmental differences in speed of visual information processing.

T Nettelbeck, C Wilson

    Journal of Experimental Child Psychology
    |August 1, 1985
    PubMed
    Summary

    Processing speed in children develops significantly until adolescence, as measured by inspection time. This cognitive development measure is reliable across multiple years.

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    Area of Science:

    • Cognitive Psychology
    • Developmental Psychology
    • Neuroscience

    Background:

    • Backward masking studies explored cognitive processing in children and adults.
    • Previous research indicated central processing is key for backward masking.
    • Task demands were confirmed equivalent across age groups.

    Purpose of the Study:

    • To examine the developmental trajectory of processing speed.
    • To estimate processing speed using inspection time in children and young adults.
    • To determine the reliability of processing speed measures over time.

    Main Methods:

    • Three backward masking studies were conducted.
    • A cross-sequential study utilized an inspection time task with varied target exposure durations.

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  • Eighty children (ages 6–13) and young adults participated.

    • Main Results:

    • Processing speed estimates increased notably until ages 11–13.
    • Inspection time may stabilize around early adolescence.
    • Performance gains were not due to practice effects.
    • Inspection time measures demonstrated high reliability over two years.

    Conclusions:

    • Processing speed development continues through childhood and early adolescence.
    • Inspection time is a reliable measure for assessing cognitive processing speed.
    • The findings contribute to understanding age-related cognitive changes.