Navigation Links
Influence of sex and handedness on brain is similar in capuchin monkeys and humans
Date:8/29/2007

Hiram, Ohio, August 29, 2007 Capuchin monkeys are playful, inquisitive primates known for their manual dexterity, complex social behavior, and cognitive abilities. New research now shows that just like humans, they display a fundamental sex difference in the organization of the brain, specifically in the corpus callosum, the region that connects the two cerebral lobes.

A recently published paper by Associate Professor of Psychology and Biology Kimberley A. Phillips (Hiram College), Chet C. Sherwood (George Washington University) and Alayna L. Lilak (Hiram College), reports finding both sex and handedness influences on the relative size of the corpus callosum. The researchers contribution appears in PLoS ONE, the online, open-access journal of the Public Library of Science. The paper can be read at: http://www.plosone.org/doi/pone.0000792.

In the study, thirteen adult capuchins underwent magnetic resonance imaging of the brain to determine the size of their corpus callosum, which is the major white matter tract connecting the left and right cerebral hemispheres. The monkeys were later given a task to determine hand preference. The authors results led them to conclude that, as in humans, male capuchins have a smaller relative size of the corpus callosum than females, and right-handed individuals have a smaller relative size of the corpus callosum than left-handed individuals.

As the two hemispheres show greater independence of function, the relative size of the corpus callosum is expected to be smaller. This has been documented in humans, and same pattern was found in capuchins. Phillips and her co-authors hypothesize their results are related to hemispheric specialization for complex foraging tasks that require the integration of motor actions and visuospatial information. In the wild, capuchin monkeys utilize both arboreal and terrestrial substrates and are also noted for being very adept at capturing small rapid prey, such as birds, lizards, and squirrels.

While such research frequently is associated with large research universities, Phillips says scientists at small liberal arts colleges such as Hiram often do not receive enough credit and, especially, for involving undergraduates, such as Lilak, in their work.

It is not where you are, Phillips says. It is the quality of the science, and scientists at small liberal arts colleges can and do conduct high-quality research. Undergraduates are an integral part of my research team - they participate in lab meetings, brainstorming, sharing ideas. They are colleagues in my lab. They just need a little more mentoring.


'/>"/>
Contact: Steve Love
lovesh@hiram.edu
330-569-5954
Public Library of Science
Source:Eurekalert

Related biology news :

1. Childrens taste sensitivity and food choices influenced by taste gene
2. Viral protein influences key cell-signaling pathway
3. Structure-building cell signals also may influence learning and memory
4. Aircraft Cabin Ventilation Influences The Transmission Of Diseases In-flight
5. NIH renews network focused on how genes influence drug responses
6. Toasty oat aroma influenced by presence of health-linked polyphenols
7. Phenotype is influenced by nature, nurture and noise
8. Genetic and environmental influences on alcohol consumption among rhesus monkeys
9. Executive monkeys influenced by other executives, not subordinates
10. Sex chromosome genes influence aggression andmaternal behavior, say UVa researchers
11. Sandia work launched on space shuttle shows live cells influence growth of nanostructures
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/24/2016)... 24, 2016 Ampronix facilitates superior patient care by providing unparalleled technology to ... display is the latest premium product recently added to the range of products distributed ... ... ... Imaging- LCD Medical Display- Ampronix News ...
(Date:5/9/2016)... UAE, May 9, 2016 Elevay ... comes to expanding freedom for high net worth professionals ... in today,s globally connected world, there is still no ... could ever duplicate sealing your deal with a firm ... passports by taking advantage of citizenship via investment programs ...
(Date:4/26/2016)... BANGALORE, India and LONDON ... Infosys Finacle, part of EdgeVerve Systems, a ... ), and Onegini today announced a partnership to ... banking solutions.      (Logo: http://photos.prnewswire.com/prnh/20151104/283829LOGO ... banks to provide their customers enhanced security to ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... On Wednesday, June 22, 2016, the ... the Dow Jones Industrial Average edged 0.27% lower to finish ... 0.17%. Stock-Callers.com has initiated coverage on the following equities: Infinity ... NKTR ), Aralez Pharmaceuticals Inc. (NASDAQ: ... ). Learn more about these stocks by accessing their free ...
(Date:6/23/2016)... ... June 23, 2016 , ... Regulatory Compliance Associates® ... provides a free webinar on Performing Quality Investigations: Getting to Root ... CT at no charge. , Incomplete investigations are still a major concern to ...
(Date:6/23/2016)... 22, 2016  Amgen (NASDAQ: AMGN ) ... QB3@953 life sciences incubator to accelerate the development ... laboratory space at QB3@953 was created to help high-potential ... for many early stage organizations - access to laboratory ... Amgen launched two "Amgen Golden Ticket" awards, providing each ...
(Date:6/22/2016)... DIEGO , June 22, 2016 ... that will allow them to produce up to ... from one lot within one week. These high-quality, ... time laboriously preparing cells and spend more time ... possible through a proprietary, high-volume manufacturing process that ...
Breaking Biology Technology: