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Related Experiment Videos

Latency of plantar grasp

K Maekawa, S Yokoi

    Brain & Development
    |January 1, 1980
    PubMed
    Summary

    Plantar grasp latency in infants shows prolonged duration during birth shock, then gradually shortens over the first four months, aiding nervous system maturation assessment.

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    Area of Science:

    • Neonatal physiology
    • Developmental neuroscience

    Background:

    • The plantar grasp reflex is a key indicator of infant neurological development.
    • Understanding the typical progression of this reflex is crucial for identifying developmental abnormalities.

    Purpose of the Study:

    • To measure and analyze the latency of the plantar grasp reflex in normal infants from birth to six months.
    • To establish normative data for plantar grasp latency during early infant development.

    Main Methods:

    • A cohort of 437 normal infants was studied from the first day to six months of age.
    • A specialized instrument was utilized to accurately measure the latency of the plantar grasp reflex.
    • Data were collected and analyzed to track changes in latency over time.

    Main Results:

    • Plantar grasp latency was observed to be prolonged during the initial 'birth shock' period.
    • Latency returned to baseline values by seven days and remained stable until four months.
    • A gradual shortening of latency was noted during the first four months of life; values became unreliable after five months.

    Conclusions:

    • The study provides a simple, reliable method for assessing nervous system maturation in infants.
    • The findings enhance understanding of the pathophysiology underlying nervous system development in early life.
    • The established normative data can aid in early detection of neurological developmental issues.

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