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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Vol. 5, Iss. 12 — Dec. 1, 1988
  • pp: 2059–2079

Optical and photoreceptor immaturities limit the spatial and chromatic vision of human neonates

Martin S. Banks and Patrick J. Bennett  »View Author Affiliations


JOSA A, Vol. 5, Issue 12, pp. 2059-2079 (1988)
http://dx.doi.org/10.1364/JOSAA.5.002059


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Abstract

We examine the contributions of preneural mechanisms, i.e., the optics of the eye and the aperture, spacing, and efficiency of foveal cones, to poor spatial and chromatic vision in human neonates. We do so by comparing the performances of ideal observers incorporating the characteristics of the optics and the foveal cones of adults and neonates. Our analyses show that many, but not all, of the differences between neonatal and adult contrast sensitivities and grating acuities can be explained by age-related changes in these factors. The analyses also predict differing growth curves for vernier and grating acuities. Finally, we demonstrate that preneural mechanisms constrain chromatic discrimination in human neonates and that discrimination failures may reflect poor visual efficiency rather than immature chromatic mechanisms per se.

© 1988 Optical Society of America

History
Original Manuscript: May 25, 1988
Manuscript Accepted: August 18, 1988
Published: December 1, 1988

Citation
Martin S. Banks and Patrick J. Bennett, "Optical and photoreceptor immaturities limit the spatial and chromatic vision of human neonates," J. Opt. Soc. Am. A 5, 2059-2079 (1988)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-5-12-2059

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