Please use this identifier to cite or link to this item:
https://hdl.handle.net/1959.11/5542
Title: | Correlations Between Hand Preference and Cortical Thickness in the Secondary Somatosensory (SII) Cortex of the Common Marmoset, 'Callithrix jacchus' | Contributor(s): | Gorrie, Catherine A (author); Waite, Phil M E (author); Rogers, Lesley (author) | Publication Date: | 2008 | DOI: | 10.1037/a0013279 | Handle Link: | https://hdl.handle.net/1959.11/5542 | Abstract: | Cortical asymmetries are well established in humans for language and motor regions and correlate with handedness. Here the authors investigate structural differences in the hemispheres of left- and right-handed common marmosets using surface photography and histology. The hand preferences of 11 marmosets were assessed over their adult life span using a simple reaching task. A significant correlation was found between the length of the right lateral sulcus/brain weight and the % right-hand preference (r = .86, p = .001). Cortical thickness on the superior bank of the right lateral sulcus posteriorly was also positively correlated with % right-hand preference (r = .69, p = .025). Comparison of this site with previously published functional maps of the marmoset cortex show this area corresponds to SII, a region involved in tactile processing and somatosensory discriminations. It is suggested that the correlation between SII thickness and right-hand preference would be consistent with the fact that right-handed marmosets are more proactive than left-handers in exploring novel objects by touch. Enlargement of a cortical area involved tactile discriminations could be a precursor to the evolution of right-handedness as a population bias. | Publication Type: | Journal Article | Source of Publication: | Behavioral Neuroscience, 122(6), p. 1343-1351 | Publisher: | American Psychological Association | Place of Publication: | United States of America | ISSN: | 1939-0084 0735-7044 |
Fields of Research (FoR) 2008: | 060805 Animal Neurobiology | Socio-Economic Objective (SEO) 2008: | 970106 Expanding Knowledge in the Biological Sciences | Peer Reviewed: | Yes | HERDC Category Description: | C1 Refereed Article in a Scholarly Journal |
---|---|
Appears in Collections: | Journal Article School of Science and Technology |
Files in This Item:
File | Description | Size | Format |
---|
SCOPUSTM
Citations
20
checked on Oct 5, 2024
Page view(s)
1,196
checked on May 26, 2024
Items in Research UNE are protected by copyright, with all rights reserved, unless otherwise indicated.