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A Method to Quantify Visual Information Processing in Children Using Eye Tracking
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A Method to Quantify Visual Information Processing in Children Using Eye Tracking

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Visual-perceptual function of children using the developmental test of visual perception-3

A Valarmathi1, Kalpana Suresh2, Lakshmi Venkatesh3

  • 1Department of Optometry, Sri Ramachandra Institute of Higher Education and Research, Chennai, India.

Clinical & Experimental Optometry
|March 10, 2021
PubMed

Insights

Developing region-specific norms for the Developmental Test of Visual Perception, third edition (DTVP-3) in South Indian children is crucial. This study highlights significant differences in certain visual-perceptual skills compared to US norms, emphasizing the need for localized assessments.

Area of Science:

  • Developmental psychology
  • Neuroscience
  • Pediatric assessment

Background:

  • Visual-perceptual skills are fundamental for children's daily functioning and learning.
  • Standardized, norm-referenced tools are essential for accurate assessment of these skills.
  • Cultural and ethnic factors can impact performance on perceptual tasks, necessitating population-specific norms.

Purpose of the Study:

  • To establish region-specific norms for the Developmental Test of Visual Perception, third edition (DTVP-3) within the Indian population.
  • To compare DTVP-3 performance in South Indian children with existing US-established norms.
  • To evaluate the internal consistency of the DTVP-3 in a South Indian pediatric cohort.

Main Methods:

  • The study involved 137 healthy children aged 7-12 years from South India.
  • Visual-perceptual skills (eye-hand coordination, copying, figure-ground, visual closure, form constancy) were assessed using the DTVP-3.
  • Internal consistency was determined using Cronbach's Alpha, and results were compared against US norms.

Main Results:

  • Significant differences were found between South Indian children and US norms for eye-hand coordination, copying, and figure-ground subtests (p < 0.05).
  • No significant differences were observed for visual closure and form constancy subtests.
  • Cronbach's alpha values indicated acceptable internal consistency for DTVP-3 subtests (0.70–0.91) and composite indexes (0.90–0.93).

Conclusions:

  • The DTVP-3 demonstrates adequate internal consistency in South Indian children.
  • Region-specific norms are essential for accurate assessment of visual-perceptual skills in this population.
  • The findings underscore the importance of localized normative data for the DTVP-3.

Keywords:
DTVPDevelopmental normative valueseye-hand coordinationvisual motorvisual perception

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