Differences in Detection of Spatial and Radial Frequencies in Children

Authors

  • Natanael Antonio dos Santos
  • Valtenice de Cássia Rodrigues de Matos França
  • Priscilla Anny de Araújo Alves

Keywords:

Visual perception, Contrast sensitivity, Visual development, Radial and spatial frequency, Forced-choice method

Abstract

The aim of this work was to compare contrast sensitivity curves for radial (rCSF) and sine-wave gratings (CSF) stimuli of 0.25, 0.5, 1 and 2 cpd in 6 to 13 year-old-children. It was measured the contrast thresholds of 40 children using the psychophysical forced-choice method and low luminance levels. All children were free of identifiable ocular diseases and had normal acuity. The results showed that contrast sensitivity of the children was higher for spatial frequencies (CSF) than radial frequencies (rCSF). The results suggest that these stimuli can be processed by different visual cortical areas.

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Published

2010-02-09

How to Cite

dos Santos, N. A., França, V. de C. R. de M., & Alves, P. A. de A. (2010). Differences in Detection of Spatial and Radial Frequencies in Children. Psicologia: Teoria E Pesquisa, 25(4), 581. Retrieved from https://periodicos.unb.br/index.php/revistaptp/article/view/17426

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Section

Estudos Empíricos