Magnification in striate cortex and retinal ganglion cell layer of owl monkey: a quantitative comparison

Science. 1977 Nov 25;198(4319):855-7. doi: 10.1126/science.411172.


Magnification, the relative size of the neural representation of a portion of the visual field, decreases more rapidly with increasing visual field eccentricity in striate cortex than in the retinal ganglion cell layer of the owl monkey (Aotus trivirgatus); the proportion of the cells in striate cortex devoted to central vision is much larger than the comparable proportion of retinal ganglion cells. Magnification in striate cortex is a power function of magnification in the retinal ganglion cell layer. A formula for convergence (ganglion cells to cortical neurons) follows from this relationship.

Publication types

  • Comparative Study
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Animals
  • Brain Mapping
  • Ganglia / cytology
  • Ganglia / physiology*
  • Haplorhini / physiology*
  • Models, Biological
  • Retina / cytology
  • Retina / innervation*
  • Retina / physiology
  • Visual Cortex / cytology
  • Visual Cortex / physiology*
  • Visual Fields*