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Normal values for the two-point discrimination test.

E B Cope1, J H Antony

  • 1Department of Neurology, Children's Hospital, Camperdown, Sydney, Australia.

Pediatric Neurology
|July 1, 1992
PubMed
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Children aged six and older can reliably perform two-point discrimination tests. Sensory discrimination improves with age, particularly on the feet, offering insights into pediatric tactile development.

Area of Science:

  • Pediatric neurology
  • Developmental psychology
  • Sensory neuroscience

Background:

  • Two-point discrimination is a key measure of tactile sensory perception.
  • Understanding normative sensory development in children is crucial for identifying developmental delays or neurological conditions.

Purpose of the Study:

  • To establish the minimum age for reliable two-point discrimination testing in children.
  • To determine age-specific normative values for two-point discrimination on fingertips and feet.
  • To investigate the relationship between age and tactile sensory discrimination in children.

Main Methods:

  • A cohort of 112 typically developing children aged 2-13 years participated.
  • The two-point discrimination test was administered to the fingertips and plantar surfaces of the feet.

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  • Data analysis focused on identifying the age of reliable test performance and age-related changes in discrimination thresholds.

    • Main Results:

    • Children aged six years and older demonstrated reliable performance on the two-point discrimination test.
    • Tactile sensory discrimination ability generally improved with increasing age across both tested locations.
    • Statistically significant improvements in two-point discrimination were observed for foot parameters with age.

    Conclusions:

    • The two-point discrimination test is a reliable tool for assessing tactile sensation in children from age six onwards.
    • Age-related maturation of tactile sensory pathways is evident, with more pronounced changes noted on the feet.
    • These findings provide valuable normative data for pediatric sensory assessments and developmental research.