June 1972
Volume 11, Issue 6
Free
Articles  |   June 1972
Anatomic Studies on the Superior Colliculus
Author Affiliations
  • R. D. LUND
    Departments of Biological Structure and Neurological Surgery, University of Washington School of Medicine, Seattle, Wash. 98195
Investigative Ophthalmology & Visual Science June 1972, Vol.11, 434-441. doi:
  • Views
  • PDF
  • Share
  • Tools
    • Alerts
      ×
      This feature is available to authenticated users only.
      Sign In or Create an Account ×
    • Get Citation

      R. D. LUND; Anatomic Studies on the Superior Colliculus. Invest. Ophthalmol. Vis. Sci. 1972;11(6):434-441.

      Download citation file:


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

      ×
  • Supplements
Abstract

The superior colliculus is organized into a superficial zone which is directly connected with other parts of the visual system and a deep zone which is not directly connected with other visual centers. Within the superficial zone, there is a convergence of retinal and visual cortical afferents. The size, distribution, and synoptic patterns formed varies between animals. Removal of an eye in neonatal rats, at a time when there are few synapses formed in the colliculus, causes a great increase in the area of distribution of the uncrossed pathway of the remaining eye. At least some of the increased pathway arises from areas of retina which normally would have projected only contralaterally. Removal of an eye at later developmental stages results in no such abnormal projection, although there is evidence that synoptic sites formerly occupied by optic terminals became taken over by other neurons.

×
×

This PDF is available to Subscribers Only

Sign in or purchase a subscription to access this content. ×

You must be signed into an individual account to use this feature.

×