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[Developmental changes of the interhemispheric interaction in the tactile function].

M Yamamoto

    Shinrigaku Kenkyu : the Japanese Journal of Psychology
    |December 1, 1984
    PubMed
    Summary

    Adults excel at tactile recognition tasks, while children show developmental differences in hemispheric specialization and interaction. This study compares performance across children, adults, and aged individuals.

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    Area of Science:

    • Neuroscience
    • Developmental Psychology
    • Cognitive Science

    Background:

    • Hemispheric specialization and interaction are crucial for cognitive functions.
    • Understanding the developmental trajectory of these processes is essential.

    Purpose of the Study:

    • To investigate the development of hemispheric specialization and interaction in tactile recognition.
    • To compare performance across different age groups: children, adults, and aged individuals.

    Main Methods:

    • A successive interhemispheric matching task was employed.
    • Seven random figures were used as tactile stimuli.
    • Participants included 24 children (mean age 5y 7m), 21 adults (mean age 22y 5m), and 15 aged people (mean age 72y 5m).

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    Main Results:

    • Adults demonstrated the highest performance in tactile recognition, while children exhibited the lowest.
    • Children showed a preference for left-hand-first tactile input, unlike adults and aged individuals.
    • Hand order did not influence performance in adults or the aged group.

    Conclusions:

    • Performance in tactile recognition, reflecting hemispheric specialization and interaction, develops significantly from childhood to adulthood.
    • Age-related changes in tactile processing and interhemispheric communication are evident.