Skip to main content
construction release_alert
Scholars@Duke will be undergoing maintenance April 11-15. Some features may be unavailable during this time.
cancel
Journal cover image

Numbers of "blobs" in the primary visual cortex of neonatal and adult monkeys.

Publication ,  Journal Article
Purves, D; LaMantia, AS
Published in: Proceedings of the National Academy of Sciences of the United States of America
August 1990

We have examined the number of "blobs" (cytochrome oxidase-positive cortical modules) in the primary visual cortex (area 17) of infant and adult rhesus monkeys. The density of these iterated circuits--about five per mm2--was not significantly different in three newborn and three mature animals. Measurement of the surface of area 17 in serial sections, however, showed that the total area occupied by the primary visual cortex increases by about 50% during maturation. Based on these measurements, the number of blobs in this species is about 8000 at birth and about 12,000 in maturity. Evidently, these complex functional units are added gradually to the developing primate brain over a period that extends into postnatal life.

Duke Scholars

Published In

Proceedings of the National Academy of Sciences of the United States of America

DOI

EISSN

1091-6490

ISSN

0027-8424

Publication Date

August 1990

Volume

87

Issue

15

Start / End Page

5764 / 5767

Related Subject Headings

  • Visual Cortex
  • Macaca mulatta
  • Macaca
  • Electron Transport Complex IV
  • Animals, Newborn
  • Animals
  • Aging
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Purves, D., & LaMantia, A. S. (1990). Numbers of "blobs" in the primary visual cortex of neonatal and adult monkeys. Proceedings of the National Academy of Sciences of the United States of America, 87(15), 5764–5767. https://doi.org/10.1073/pnas.87.15.5764
Purves, D., and A. S. LaMantia. “Numbers of "blobs" in the primary visual cortex of neonatal and adult monkeys.Proceedings of the National Academy of Sciences of the United States of America 87, no. 15 (August 1990): 5764–67. https://doi.org/10.1073/pnas.87.15.5764.
Purves D, LaMantia AS. Numbers of "blobs" in the primary visual cortex of neonatal and adult monkeys. Proceedings of the National Academy of Sciences of the United States of America. 1990 Aug;87(15):5764–7.
Purves, D., and A. S. LaMantia. “Numbers of "blobs" in the primary visual cortex of neonatal and adult monkeys.Proceedings of the National Academy of Sciences of the United States of America, vol. 87, no. 15, Aug. 1990, pp. 5764–67. Epmc, doi:10.1073/pnas.87.15.5764.
Purves D, LaMantia AS. Numbers of "blobs" in the primary visual cortex of neonatal and adult monkeys. Proceedings of the National Academy of Sciences of the United States of America. 1990 Aug;87(15):5764–5767.
Journal cover image

Published In

Proceedings of the National Academy of Sciences of the United States of America

DOI

EISSN

1091-6490

ISSN

0027-8424

Publication Date

August 1990

Volume

87

Issue

15

Start / End Page

5764 / 5767

Related Subject Headings

  • Visual Cortex
  • Macaca mulatta
  • Macaca
  • Electron Transport Complex IV
  • Animals, Newborn
  • Animals
  • Aging