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

Frantz, R.L.; Ordy, J. M.; Udelf, M. S.

doi:10.1037/h0044173

Cited by 292 publications

(81 citation statements)

References 13 publications

(13 reference statements)

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“…They are comparable to acuities reported for kittens (Mitchell, Giffen, Wilkinson, Anderson, & Smith, 1976), cats (Smith, 1936), sea lions (Schusterman & Balliet, 1971), 5-month-old human infants (Fantz, Ordy, & Udelf, 1962), and about one fifth of that reported for adult humans (Spence, 1934).…”

Section: Discussionsupporting

confidence: 68%

Discriminative Performance of the Domestic Hen in a Visual Acuity Task

Temple

1992

J Exper Analysis Behavior

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The performance of 6 domestic hens on a visual acuity task was studied using a spatial discrete-trial conditional discrimination procedure. Gray stimuli and vertical square-wave gratings, ranging in spatial frequency from 1 to 10 cycles per millimeter, were presented in a descending and ascending series of probes. On each trial, either a grating or gray stimulus was presented. Only one spatial frequency of grating was presented during each session. Between probe sessions, training continued at the coarsest grating value. Stimulus discriminability, measured as values of log d, changed with changes in grating spatial frequency for both probe series. Fitted lines described the linear portion of the psychometric functions. Thresholds estimated from the lines generally ranged from four to six cycles per degree, with slightly greater estimates from data from the descending probe series. There were no systematic changes in response bias as a function of grating spatial frequency.

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Section: Discussionsupporting

confidence: 68%

Discriminative Performance of the Domestic Hen in a Visual Acuity Task

Temple

1992

J Exper Analysis Behavior

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“…An improvement in visual acuity during infancy has been noted in previous studies employing behavioral measures (Fantz, Ordy, & Udelf, 1962;Gorman, Gogen, & Gellis, 1967). These studiesindicated visual acuities between 20/400 and 20/670 for the 1st month of life and approximately 20/200 for the 3rd month of life.…”

Section: Checkerbuard-pattemed Light Flashes (Individual Checks Subtementioning

confidence: 78%

Visually-evoked cortical responses and pattern vision in the infant: A longitudinal study

Harter

Suitt

1970

Psychon Sci

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“…The most common measure of grating acuity during infancy is preferential looking (reviewed in Maurer & Lewis, 2001a, 2001b. This method takes advantage of infants' preference to look at something patterned over something plain (Fantz, Ordy, & Udelf, 1962). The infant is shown black-and-white stripes paired with a gray stimulus of the same mean luminance, and the size of the stripes is varied across trials.…”

Section: Visual Acuity Normal Developmentmentioning

confidence: 99%

Multiple sensitive periods in human visual development: Evidence from visually deprived children

Lewis

Maurer

2005

Developmental Psychobiology

366

249

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Psychophysical studies of children deprived of early visual experience by dense cataracts indicate that there are multiple sensitive periods during which experience can influence visual development. We note three sensitive periods within acuity, each with different developmental time courses: the period of visually-driven normal development, the sensitive period for damage, and the sensitive period for recovery. Moreover, there are different sensitive periods for different aspects of vision. Relative to the period of visually driven normal development, the sensitive period for damage is surprisingly long for acuity, peripheral vision, and asymmetry of optokinetic nystagmus, but surprisingly short for global motion. A comparison of results from unilaterally versus bilaterally deprived children provides insights into the complex nature of interactions between the eyes during normal visual development.

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

Cited by 292 publications

References 13 publications

Discriminative Performance of the Domestic Hen in a Visual Acuity Task

Discriminative Performance of the Domestic Hen in a Visual Acuity Task

Visually-evoked cortical responses and pattern vision in the infant: A longitudinal study

Multiple sensitive periods in human visual development: Evidence from visually deprived children

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