Navigation Links
Has evolution given humans unique brain structures?
Date:2/22/2013

Our ancestors evolutionarily split from those of rhesus monkeys about 25 million years ago. Since then, brain areas have been added, have disappeared or have changed in function. This raises the question, 'Has evolution given humans unique brain structures?'. Scientists have entertained the idea before but conclusive evidence was lacking. By combining different research methods, we now have a first piece of evidence that could prove that humans have unique cortical brain networks.

Professor Vanduffel explains: "We did functional brain scans in humans and rhesus monkeys at rest and while watching a movie to compare both the place and the function of cortical brain networks. Even at rest, the brain is very active. Different brain areas that are active simultaneously during rest form so-called 'resting state' networks. For the most part, these resting state networks in humans and monkeys are surprisingly similar, but we found two networks unique to humans and one unique network in the monkey."

"When watching a movie, the cortex processes an enormous amount of visual and auditory information. The human-specific resting state networks react to this stimulation in a totally different way than any part of the monkey brain. This means that they also have a different function than any of the resting state networks found in the monkey. In other words, brain structures that are unique in humans are anatomically absent in the monkey and there no other brain structures in the monkey that have an analogous function. Our unique brain areas are primarily located high at the back and at the front of the cortex and are probably related to specific human cognitive abilities, such as human-specific intelligence."

The study used fMRI (functional Magnetic Resonance Imaging) scans to visualise brain activity. fMRI scans map functional activity in the brain by detecting changes in blood flow. The oxygen content and the amount of blood in a given brain area
'/>"/>

Contact: Wim Vanduffel
wim.vanduffel@med.kuleuven.be
32-016-330-666
KU Leuven
Source:Eurekalert

Page: 1 2

Related medicine news :

1. Males superior spatial ability likely is not an evolutionary adaptation
2. Pulitzer Prize Winner, Chief Experience Officer, to Keynote Patient Safety Solution Evolution
3. Study tracks leukemias genetic evolution, may help predict disease course, tailor care
4. New Sleep Mask for Perfect Sleep: Zeepo, the Revolutionary Strapless Eye Mask that Completely Blocks Out Light
5. Evolution Keratin Strikes Exclusive Deal With Proline Beauty Distributors
6. LifeWings Provides 7 Steps to Revolutionize Patient Safety Management
7. simplifyMD Revolutionizes the EHR Software Trial Process with the introduction of simpleStart™
8. Breakthrough HIV Technology Could Revolutionize Patient Care in Zimbabwe
9. A new mechanism that contributes to the evolution of cancer
10. Rutgers professor recognized for revolutionizing agriculture
11. Economic analysis finds penicillin, not "the pill," may have launched the sexual revolution
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/31/2015)... ... 31, 2015 , ... Wyoming Medical Center, an acute care ... Clinical Documentation Improvement (CDI) and medical coding needs. Based on a proprietary Natural ... is an enterprise-level coding solution that combines CDI, Coding, Quality and Compliance Auditing ...
(Date:8/31/2015)... CA (PRWEB) , ... August 31, 2015 , ... Castle ... to the practice. Dr. Pedram Ghasri is a graduate of the University of California, ... and continued his studies at the University of California, Irvine Medical School. As a ...
(Date:8/31/2015)... (PRWEB) , ... August 31, 2015 , ... “My mother ... said an inventor, from Hagerhill, Ky. “I thought there could be a comfortable way ... Protector. , The Nasal Cannula Ear Protector offers a more secure way to anchor ...
(Date:8/31/2015)... (PRWEB) , ... August 31, 2015 , ... A year ... the team is preparing to release a new issue commemorating the successful first year. ... information they need for a potentially difficult time in their lives,” says Melissa Wolfert, ...
(Date:8/31/2015)... Los Angeles, ACA (PRWEB) , ... August 31, 2015 , ... ... filling a growing niche in the digital healthcare industry. , Consumer driven health ... the field: one in an advisory and strategic role to the company, and another ...
Breaking Medicine News(10 mins):Health News:Wyoming Medical Center Selects ezDI’s CAC/CDI Solution Based on Integrated Healthcare Data Management, Workflow Design and ROI 2Health News:Wyoming Medical Center Selects ezDI’s CAC/CDI Solution Based on Integrated Healthcare Data Management, Workflow Design and ROI 3Health News:Wyoming Medical Center Selects ezDI’s CAC/CDI Solution Based on Integrated Healthcare Data Management, Workflow Design and ROI 4Health News:Castle Dermatology Institute Now Welcomes Dr. Pedram Ghasri to the Practice 2Health News:InventHelp® Inventor Designs Nasal Cannula Ear Protector (AVZ-1217) 2Health News:Seniors Guide Magazine Celebrates Its First Year in Columbus With A Special Anniversary Issue 2Health News:Seniors Guide Magazine Celebrates Its First Year in Columbus With A Special Anniversary Issue 3Health News:ZendyHealth Adds Two Prestigious Consumer Driven Health Plan (CDHP) Experts 2Health News:ZendyHealth Adds Two Prestigious Consumer Driven Health Plan (CDHP) Experts 3
... beating heart transplant for a 58-year-old man and says the ... Bruce Rosengard, at Papworth Hospital in Cambridge, led the team ... be kept warm as to body temperature and beating before ... removed organs are usually placed on ice and transferred to ...
... a Canadian National research project children’s blood here are ... PCBs to flame retardants//. ,A report by Toronto-based ... with even higher levels than their parents., ,On ... in the blood and urine samples of subjects. Some ...
... second highest success rate in heart surgeries, ensuring that 99.6 ... stories, the group's chairman Prathap C Reddy said here today. ... he said while the hospital that had the highest success ... cost effective as it charged less than 4,000 dollars. ...
... Osteoporosis (IOF WCO), the world's largest Scientific congress devoted ... June 2, in Toronto, Canada//. ,Professor Rene ... that this year's congress attracted 720 abstracts, more than ... 2004 in Rio de Janeiro, Brazil. ,On ...
... sex during the final weeks of pregnancy is not a trigger ... popular myth, that has deterred many couples enjoy physical pleasure during ... a relief., ,A study was conducted among 93 women, ... of their pregnancy. The finding revealed that women, who enjoyed the ...
... emerged victorious in a historic Supreme Court case around a ... with the ruling providing expanded access to private care//. ... from any (private) coverage. It’s a violation of the judgment. ... and eventually to die,' Chaoulli said. ,In a ...
Cached Medicine News:
(Date:8/28/2015)... , Aug. 28, 2015 ... has announced the addition of the "Investigation ... to their offering. Originally discovered by ... Yoshitomi Pharmaceutical Industries, Ltd) as an inflammatory drug, ... Senju Pharmaceutical Co., Ltd under the trade name ...
(Date:8/28/2015)... Aug. 28, 2015  Today, in final recognition of ... Lens Health Week, 1-800 Contacts is sharing how to ... contact lens wearers who do not properly care for ... eye infections. Most contact lens wearers ... a clean lens case is sometimes overlooked.  When proper ...
(Date:8/28/2015)... , Aug. 28, 2015 ... has announced the addition of the "Investigation ... to their offering. Developed by Pharmacia ... prostaglandin receptor agonist which effectively reduces intraocular pressure. ... FDA, latanoprost (under the trade name of Xalatan) ...
Breaking Medicine Technology:Investigation Report on China's Pranoprofen Market, 2010-2019 21-800 Contacts Shares Tips on How to Clean Lens Cases 2China Latanoprost Market Investigation Report 2015-2019 2
... PALO ALTO, Calif. , April 28 Jazz Pharmaceuticals, Inc. (Nasdaq: ... financial results on Wednesday, May 5, 2010 .  Jazz Pharmaceuticals will host ... well as to discuss financial results and guidance, on May 5, 2010 ... , , , ...
... April 28 The biopharma mega-mergers that grabbed headlines last year ... are now in the critical post-integration period and the acquiring companies are ... too early for final verdicts, but clearly one M&A issue that continues ... , , , ...
Cached Medicine Technology:Jazz Pharmaceuticals to Announce First Quarter 2010 Financial Results on May 5, 2010 2Bio-Pharma Industry Experts Deliver M&A Value Through Integration Excellence 2Bio-Pharma Industry Experts Deliver M&A Value Through Integration Excellence 3
... new generation of posterior stabilized knee ... the following: Patellar flange mates with ... machined condyles assure precise, repeatable kinematics ... and patella to reduce wear. Constant ...
... total knee prosthesis stems from many years ... and manufacturing technologies have been used in ... well as a favorable pressure distribution pattern ... wear to a minimum. The inherent design ...
The Balanced Knee System provides instrumentation designed to achieve proper tissue balancing and alignment with user-friendly instrumentation that provides reproducible results....
... Knee System provides anatomical replacement of all ... preserving the stabilizing Anterior and Posterior Ligaments, ... of the knee. All the components in ... and are equally proportioned and contoured to ...
Medicine Products: