Complete pattern of ocular dominance stripes in V1 of a New World monkey, Cebus apella

M. G P Rosa, R. Gattass, M. Fiorani

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Abstract

The presence of ocular dominance (OD) stripes in layer IVc of striate cortex (V1) is characteristic of all Old World simians so far studied. In contrast, some species of New World monkeys do not have ocular dominance stripes, and in those that do, the pattern of stripes may be different from that shown in Old World monkeys. This difference has led to the suggestion that OD stripes evolved independently in both groups. We have mapped the entire system of OD stripes in the New World monkey Cebus, by means of cytochrome oxidase histochemistry after monocular enucleation. A striking similarity was found between the patterns in Cebus and Macaca, which is suggestive of common ancestry, rather than parallel evolution.

Original languageEnglish
Pages (from-to)645-648
Number of pages4
JournalExperimental Brain Research
Volume72
Issue number3
DOIs
Publication statusPublished - 1 Oct 1988
Externally publishedYes

Keywords

  • Cytochrome oxidase
  • Evolution
  • Ocular dominance
  • Platyrrhini
  • Striate cortex

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