Elsevier

Vision Research

Volume 22, Issue 9, 1982, Pages 1141-1151
Vision Research

Visual acuity development in infants and young children, as assessed by operant preferential looking

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Abstract

The operant preferential looking (OPL) procedure was used to obtain psychophysical estimates of visual acuity for square-wave gratings in 50 children between 5 months and 5 yr of age. Acuity developed systematically with age, from 6 min arc (5 c/deg) at 5 months to 0.75 min arc (40 c/deg) at 5 yr, a value close to adult acuity tested with the OPL stimuli. In addition, psychometric functions became steeper with age, suggesting that criterion for responding varies with age. OPL offers the possibility of using a single procedure to follow acuity development across a wide age range.

References (51)

  • TellerD.Y.

    The forced-choice preferential looking procedure: a psychophysical technique for use with human infants

    Infant Behav. Devl

    (1979)
  • AichmairH. et al.

    Objektive Sehscharfebestimmung bei Kleinstkindern

    Klin. Mbl. Augenheilk.

    (1976)
  • AllenH.F.

    Testing visual acuity in preschool children. Norms, variables and a new picture test

    Pediatrics

    (1957)
  • AllenJ.

    Visual acuity development in human infants up to 6 months of age

  • BirchE.E. et al.

    Visual acuity of toddlers tested by operant and preferential looking techniques

    Invest. Ophthal. visual Sci., (Suppl.)

    (1980)
  • BrantJ.C. et al.

    Testing of visual acuity in young children: an evaluation of some commonly used methods

    Devl Med. Child Neurol.

    (1976)
  • CampbellF. et al.

    Optical and retinal factors affecting visual resolution

    J. Physiol.

    (1965)
  • CatfordG.V. et al.

    Method of visual acuity detection

  • CatfordG.V. et al.

    Development of acuity

    Archs Dis. Child.

    (1973)
  • CooperJ. et al.

    Operant conditioning and assessment of stereopsis in young children

    Am. J. Optom. Physiol. Opt.

    (1978)
  • DobsonV.

    Behavioral tests of visual acuity in infants

  • DobsonV. et al.

    A behavioral method for efficient screening of visual acuity in young infants. I. Preliminary laboratory development

    Invest. Ophthal. visual Sci.

    (1978)
  • FantzR. et al.

    Maturation of pattern vision in infants during the first six months of life

    J. comp. Physiol. Psychol.

    (1962)
  • FellowsB.J.

    Chance stimulus sequences for discrimination tasks

    Psychol. Bull.

    (1967)
  • FinneyD.J.

    Probit Analysis

    (1971)

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