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Science 25 November 1977:
Vol. 198. no. 4319, pp. 855 - 857
DOI: 10.1126/science.411172
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Articles

Science, Vol 198, Issue 4319, 855-857
Copyright © 1977 by American Association for the Advancement of Science

articles

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

J Myerson, PB Manis, FM Miezin, and JM Allman

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.


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