July 1991
Volume 32, Issue 8
Free
Articles  |   July 1991
Development of the human visual system: monocular and binocular pattern VEP latency.
Author Affiliations
  • D L McCulloch
    Department of Ophthalmology, Hospital for Sick Children, Toronto, Canada.
  • B Skarf
    Department of Ophthalmology, Hospital for Sick Children, Toronto, Canada.
Investigative Ophthalmology & Visual Science July 1991, Vol.32, 2372-2381. doi:
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      D L McCulloch, B Skarf; Development of the human visual system: monocular and binocular pattern VEP latency.. Invest. Ophthalmol. Vis. Sci. 1991;32(8):2372-2381.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

Pattern visual evoked potentials (P-VEPs) were recorded in 161 human infants who were between 3 weeks and 2 yr of age. The latency of the first reproducible positive peak in the P-VEP was measured monocularly and binocularly for five sizes of phase alterations checkerboard stimuli (range: 120' to 7.5' check widths). Rapid visual maturation in the first 6 months of life was shown by the development of reproducible P-VEPs to smaller check sizes and by a rapid decrease in the latency of the first reproducible positive peak. Monocular P-VEPs have slightly longer latencies than the binocular P-VEPs. This latency difference is invariant with age, but is significantly greater with larger check stimuli. Normal ranges for this large population are provided as a reference for clinical studies.

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