Navigation Links
Size of Frontal Lobes May Not Matter for Brain Power: Study

MONDAY, May 13 (HealthDay News) -- Although the brain's frontal lobes are believed to be critical for high-level thinking, they are not the sole source of human intelligence, according to a new study.

Researchers from the University of Reading and Durham University in the United Kingdom found other regions of the brain, such as the cerebellum, played an unexpected but essential role in the expansion of the human brain. These areas of the brain should get more attention because they are not only involved in cognition (mental abilities) but also disorders, such as autism and dyslexia, the study authors pointed out.

"Probably the most widespread assumption about how the human brain evolved is that size increase was concentrated in the frontal lobes," study lead author Robert Barton, from the anthropology department at Durham, explained in a university news release.

"It has been thought that frontal lobe expansion was particularly crucial to the development of modern human behavior, thought and language, and that it is our bulging frontal lobes that truly make us human," he said. "We show that this is untrue: Human frontal lobes are exactly the size expected for a non-human brain scaled up to human size."

Barton added that other areas of the brain considered to be more primitive, such as the cerebellum, were just as important during human evolution.

In conducting the study, the researchers examined data from previous human and animal studies. Using a new method, they analyzed the speed of evolutionary change. The investigators found human frontal lobes did not evolve particularly fast after the split from chimpanzee lineage.

Rather than the size of the frontal lobes, the study authors suggested higher human intelligence is the result of extensive brain networks linking many different parts of the brain. The structure of these networks may be more critical for intelligence than the size of one region of the brain.

The study was published in the May 13 issue of the Proceedings of the National Academy of Sciences.

More information

The U.S. National Institute of Neurological Disorders and Stroke has more about the brain and how it works.

-- Mary Elizabeth Dallas

SOURCE: Durham University, news release, May 13, 2013

Copyright©2012 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Increasing dopamine in brains frontal cortex decreases impulsive tendency, UCSF-Gallo study finds
2. Increasing dopamine in frontal cortex decreases impulsive tendency, UCSF-Gallo scientists find
3. Long-term hormone treatment increases synapses in rat prefrontal cortex
4. The Chris Elliott Fund to Honor the Late Kathi Goertzen, Longtime Western Washington News Anchor, with Inspiration Award at May 16th Brains Matter Auction and Luncheon
5. Grey Matter Marketing Launches Industry-Wide Medical Technology Digital Marketing Survey
6. Makes Brain Matters a Matter of One Click
7. Mesothelioma Victims Center Now Urges Retired Industrial Workers Diagnosed With Mesothelioma To Call Them For The Names The Best Mesothelioma Law Firms-Quality Matters
8. A*STAR scientist Alex Matter awarded prestigious Szent-Györgyi Prize for progress in cancer
9. Mesothelioma Victims Center Now Urges US Navy Veterans Diagnosed With Mesothelioma To Call Them For The Names Of The Best Mesothelioma Law Firms-Quality Matters
10. Mesothelioma Victims Center Now Urges Families of A US Navy Veteran Living with Mesothelioma to Call Them for The Names of The Best Mesothelioma Law Firms-Quality Matters
11. Where youre treated matters in terms of cancer survival
Post Your Comments:
Related Image:
Size of Frontal Lobes May Not Matter for Brain Power: Study
(Date:10/13/2017)... ... October 13, 2017 , ... Lori R. Somekh, founder of the Law ... organization of elder law and special needs planning attorneys. “Membership in ElderCounsel helps our ... a forum to network with elder law attorneys nationwide,” said Somekh. , ...
(Date:10/13/2017)... ... October 13, 2017 , ... Global Healthcare Management’s 4th ... Park in Milford, NJ. This free event, sponsored by Global Healthcare Management’s CEO, ... The fun run is geared towards children of all ages; it is a non-competitive, ...
(Date:10/13/2017)... ... 13, 2017 , ... “America On The Brink”: the Christian history of the ... is the creation of published author, William Nowers. Captain Nowers and his wife, ... he spent thirty years in the Navy. Following his career as a naval ...
(Date:10/12/2017)... ... October 12, 2017 , ... IsoComforter, Inc. ( ... introduction of an innovative new design of the shoulder pad. The shoulder pad ... comfort while controlling your pain while using cold therapy. By utilizing ice and water ...
(Date:10/12/2017)... ... , ... HMP , a leader in healthcare events and education, today announced ... Award for ‘Best B-to-B Healthcare Website.’ Winners were announced during the Eddie & Ozzie ... competition recognizes editorial and design excellence across a range of sectors. This year’s program ...
Breaking Medicine News(10 mins):
(Date:10/4/2017)... , Oct. 4, 2017  According to the Centers for Disease Control ... of October . PhysicianOne Urgent Care is helping communities across ... NY , by offering no-cost* flu shots through the end of ... by certain health insurance regulations. ... best time to get a flu shot is by the end of ...
(Date:10/2/2017)... INDIANAPOLIS , Oct. 2, 2017  Eli Lilly ... its financial results for the third quarter of 2017 ... a conference call on that day with the investment ... performance. The conference call will begin at ... public can access a live webcast of the conference ...
(Date:10/2/2017)... 2017 The Rebound mobile app is poised to ... the tide of prescription drug addiction. The app empowers users ... and stepping down their dosage in a safe, controlled manner ... 2017; the first 100,000 people to sign up will enjoy ... ...
Breaking Medicine Technology: