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:4/24/2015)... On February 21st, 2015, Per Wickstrom had the ... contributor Karen Salkin at Durkin Entertainment’s EcoLuxe Lounge, sponsored ... of which Wickstrom is the founder. Making appearances at ... EcoLuxe Lounge is a gathering of some of the ... and services. Among the many roles that she has ...
(Date:4/24/2015)... Anchor Health Administrators (Anchor), specialists in Long-Term Care ... exclusive agreement with LTC Solutions for All LLC (SFA) ... , Anchor has more than 18 years of experience ... and is currently the designated advocate for the American ... member benefit. , “I am very pleased to be ...
(Date:4/24/2015)... (PRWEB) April 24, 2015 With years ... , UGA is now proud to be partnered with ... of 16,000 animals a year. This partnership has brought ... their animals. , After providing an in-house payment ... Medical Teaching Hospital (VMTH) wanted to increase financing options ...
(Date:4/24/2015)... (PRWEB) April 24, 2015 “ Opera ” ... Report, which features the latest and coolest technology products available ... of NewsWatch, conducted the review and shared with viewers how ... Without web browsers, surfing the internet would not be in ... other and the Opera browser is no different. Celebrating their ...
(Date:4/24/2015)... April 24, 2015 Qualis Health, ... organizations, has published a new resource for practicing ... The guide to Quality and Resource Use Reports ... & Medicare Services (CMS) to help practices interpret ... streamline resources, and identify care coordination opportunities to ...
Breaking Medicine News(10 mins):Health News:Karen Salkin Talks with Per Wickstrom at the 2015 EcoLuxe Lounge and the "Salute to the Oscars" Celebration 2Health News:University of Missouri Veterinary Medical Teaching Hospital Teams with UGA 2Health News:A Web Browser That Connects over 350 Million People was Featured on NewsWatch Television 2Health News:Qualis Health Publishes Guide to Help Physician Practices Assess and Improve Quality 2
... variants in the DNA of 486 people infected with HIV that ... virus and delay the onset of full-blown AIDS. ... for an HIV vaccine that would work by boosting the protective ... bodys own immune system overcome an infection. One of the genes ...
... may have ended 150 years ago but that need not ... ambience in a majestic 17th century garden . ... has made known plans to open up a part of ... for weddings. ,The magnificently laid and maintained gardens, ...
... passed snide remarks about her, claiming that the actress is too ... Ashton Kutcher tied the knot in September 2005, and the actress ... ,Lesley Guynes, who is separated from Moores half-brother commented that the ... she was old. ,I think Demi is getting too ...
... study by researchers has claimed that Chinas desire to ... monkeys in their infancy in the Mount Huangshan Scenic ... ,According to National Geographic, the skyrocketing infant mortality of ... to a restricted range and regularly competing for corn ...
... toughen anti-smoking laws, restricting smoking in public places and ... further approved a Health and Family Welfare Ministry proposal ... Act in the first week of the monsoon session ... told reporters after a Cabinet meeting in New Delhi. ...
... food cravings and keeping them in check may be ... first six-month phase of the study provides new insights ... their role in weight control. ,Cravings are ... Susan Roberts, PhD, director of the USDA HNRCAs Energy ...
Cached Medicine News:Health News:Experts Identify Vaccine Target for HIV 2Health News:Experts Identify Vaccine Target for HIV 3Health News:Now You can Marry in a Mughal Ambience, If You Wish to 2Health News:Chinese Eco-tourism Causing Infanticide Among Tibetan Monkeys 2Health News:Government to Toughen Its Anti-smoking Laws 2Health News:Weight Management Achieved by Controlling and Not Suppressing Food Cravings 2
(Date:4/24/2015)... , April 24, 2015  IGI Laboratories, Inc. ... based specialty generic pharmaceutical company, announced the Company ... on Tuesday, April 28, 2015 to discuss the 1st ... to listen to the call by dialing 1-888-346-3479. International ... Participants should ask to be joined into the IGI ...
(Date:4/24/2015)... April 24, 2015  Span-America Medical Systems, Inc. ... its fiscal 2015 second quarter results on Thursday, April ... The company will conduct a conference call ... to review the company,s financial and operating results for ... broadcast of the conference call will be available ...
(Date:4/24/2015)... Introduction of new ... tools for radiosurgery/SBRT   The "Elements" ... enhancing the workflow for difficult to treat indications ... - comes full circle with the introduction of ... Elements enable on-the-fly generation of consistent treatment plans ...
Breaking Medicine Technology:Brainlab Introduces New Generation of VMAT* for Brain and Spine at 3rd ESTRO in Barcelona 2
... BP 900 offers three magnifications ... routine practice, the BP 900 ... and progressive functionality. Two optional ... one for digital photography, are ...
... 400 System is an automated multiplexing platform ... SNP detection, pathogen sequence detection and pharmacogenetics ... be applied to an open and flexible ... be reused until all tests sites have ...
... for venous pressure monitoring, blood sampling, ... Turbo-Flo polyurethane PICC line sets offer:, ... Micropuncture Introducer Needle, Biocompatible ... trimmed to patient specific anatomy. Remove ...
Cable connections for 5 different adapters: Storz, ACMI, Pentax, Wolf and Olympus....
Medicine Products: