Skip to main content
padlock icon - secure page this page is secure

Sylvian fissure asymmetry in capuchin monkeys (Cebus apella)

Buy Article:

$54.00 + tax (Refund Policy)

Asymmetries of the sylvian fissure (SF) are believed to reflect an enlargement of the posterior temporal lobe, particularly a region that corresponds to part of Wernicke's area in humans. In nonhuman primates the homologue to the region may be involved in the discrimination and processing of species-specific vocalisations. As capuchin monkeys are large brained, socially complex primates with a rich vocal repertoire, it was hypothesised that they would display asymmetry of the SF. We used high-resolution 3T MRI scans to investigate this asymmetry in 17 brown capuchin monkeys (Cebus apella; 9 males, 8 females). Results indicated a trend towards population-level leftward asymmetry in the lateral region of the SF. Post hoc analyses revealed significant sex differences in SF asymmetry, with females displaying a population-level leftward asymmetry of the lateral region of the SF. Age was a significant mediator of the effects of sex on asymmetry of the lateral region of the SF. These results provide evidence that capuchin monkeys display sex differences in the asymmetry of the SF and show developmental changes in hemispheric lateralisation.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
No Metrics

Keywords: Cebus; Species-specific vocalisations; Sylvian fissure

Document Type: Research Article

Affiliations: Hiram College, Hiram, OH, USA

Publication date: September 1, 2008

  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more