Neural Networks: Structure and Repair. Part 1. Ground Squirrel Visual System. Part 2. Formation, Maintenance and Plasticity of Synaptic Connections

Abstract

This project uses the visual system of squirrels, with special emphasis on the retina, to study the normal organization of neural networks. Over the past year we have added to our knowledge of the organization of the retinal ganglion cell layer: (1) We have determined that only 50% of the cells in the ganglion cell layer are retinal ganglion cells. (2) Retinal ganglion cells projecting to the superior colliculus have been identified using Cholera Toxin subunit B (CTB) as a retrograde tracer. The ZIDAS and Neurolucida image analysis systems have been used to characterize the dendritic tree of the medium-sized cells from this group. Differences in the organization of the dendritic tree suggest that these cells comprise more than one subpopulation. (3) Experiments to determine whether retinal ganglion cells project to more than one retinal projection target have revealed that ganglion cells in this species do not project bilaterally to any significant degree.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jul 27, 1994
Accession Number
ADA282420

Entities

People

  • Damien P. Kuffler
  • Nidza Lugo-garcia
  • Rosa E Blanco

Organizations

  • University of Puerto Rico

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Biomedical Research
  • Cells
  • Electron Microscopy
  • Growth Factors
  • Ionic Current
  • Muscle Fibers
  • Muscles
  • Nerves
  • Neural Networks
  • Neurons
  • Peripheral Nervous System
  • Proteins
  • Puerto Rico
  • Rodents
  • Sciatic Nerve
  • Skeletal Muscle

Readers

  • Molecular and Cellular Biology
  • Neural Network Machine Learning.
  • Vision Science/Vision Psychology/Cognitive Neuroscience.

Technology Areas

  • AI & ML