The Effects of Age on Parallel Processing in the Human Optic Nerve

  • Alfredo A. Sadun
  • Michael Miao
  • Betty M. Johnson


Parallel processing involves transmission for central processing of relatively independent packets of information along spatially separate pathways. As an analogy, one can consider a postman who carries separate packets of information in the form of different letters, each with its own address, each delivered separately. And yet, just as the mailman carries all his packets of letters in one pouch, the optic nerve must serve as a common conduit for all visual information transduced at the level of the eye and integrated in the brain.


Optic Nerve Retinal Ganglion Cell Contrast Sensitivity Lateral Geniculate Nucleus Fiber Population 
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Copyright information

© Springer Science+Business Media New York 1991

Authors and Affiliations

  • Alfredo A. Sadun
    • 1
  • Michael Miao
    • 1
  • Betty M. Johnson
    • 1
  1. 1.Dept. of Ophthalmology, Doheny Eye FoundationUSC School of MedicineLos AngelesUSA

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