Contrast sensitivity to sine-wave gratings of low spatial frequencies in children

Authors

  • Natanael Antonio dos SANTOS Universidade Federal de Paraíba
  • Valtenice de Cássia Rodrigues de Matos FRANÇA Universidade de São Paulo

Keywords:

Child, Visual perception, Contrast sensitivity

Abstract

The aim of this study was to measure contrast sensitivity function for spatial frequencies of 0.25, 0.5, 1.0 and 2.0 cycles per degree in children between the ages of 4 and 13. We measured the contrast thresholds of 60 participants (50 children and 10 young adults) using the psychophysical forced-choice method and low luminance levels. All subjects were free from any
identifiable ocular disease and had normal acuity. Results showed that contrast sensitivity function, in children in the 4-5, 6-7, 8-9, 10-11 and 12-13 age ranges, improved significantly with age. The results also showed that, by 12-13 years of age, the contrast sensitivity function was similar to that of a young adult (19-22 years). These results suggest that the
development of contrast sensitivity function for sine-wave grating at low luminance levels attains adult-like values by about 12-13 years of age.

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Published

2008-06-30

How to Cite

SANTOS, N. A. dos ., & FRANÇA, V. de C. R. de M. (2008). Contrast sensitivity to sine-wave gratings of low spatial frequencies in children. Psychological Studies, 25(2). Retrieved from https://periodicos.puc-campinas.edu.br/estpsi/article/view/6984